Re: network mystery!!??

[Jack Craig]

i wondered if the list just didnt like me! ;)

as for the mystery solution, after all the support, I figured a summary was
the least i could do...

On Wed, Apr 20, 2022 at 9:45 AM Patrick O'Callaghan 
wrote:

> On Wed, 2022-04-20 at 22:55 +0930, Tim via users wrote:
> > On Wed, 2022-04-20 at 02:41 -0700, Jack Craig wrote:
> > > i sent a reply to the question of what was the mystery ,
> > > but I don't see it on the thread did you get it?
> >
> > It came through to the list.  If you're reading in gmail, it's
> > probably
> > doing that thing where it doesn't show messages to your own address
> > from your own address.
> >
>
> That works for me, as it always has. Just tested it again to be sure.
>
> > I just started doing that to me, again.  It's not such as odd thing
> > to
> > do as people might think:  How do you test your email is working?
> > Send
> > yourself a message.  Now, you need a second address to send tests
> > from.
> >
> > And, as you've probably discovered, if your posts to mailing lists
> > don't come back to you, it's confusing.
>
> Lists managed by Mailman (which IIRC include the Fedora lists) let the
> user specify if they want to receive their own posts. My subscription
> to this list is set up that way and I do see them. I think Gmail
> doesn't mark them as *new* which may have the effect of hiding them
> according to how your view is set up.
>
> poc
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Re: network mystery!!??

[Patrick O'Callaghan]

On Wed, 2022-04-20 at 22:55 +0930, Tim via users wrote:
> On Wed, 2022-04-20 at 02:41 -0700, Jack Craig wrote:
> > i sent a reply to the question of what was the mystery ,
> > but I don't see it on the thread did you get it?
> 
> It came through to the list.  If you're reading in gmail, it's
> probably
> doing that thing where it doesn't show messages to your own address
> from your own address.
> 

That works for me, as it always has. Just tested it again to be sure.

> I just started doing that to me, again.  It's not such as odd thing
> to
> do as people might think:  How do you test your email is working? 
> Send
> yourself a message.  Now, you need a second address to send tests
> from.
> 
> And, as you've probably discovered, if your posts to mailing lists
> don't come back to you, it's confusing.

Lists managed by Mailman (which IIRC include the Fedora lists) let the
user specify if they want to receive their own posts. My subscription
to this list is set up that way and I do see them. I think Gmail
doesn't mark them as *new* which may have the effect of hiding them
according to how your view is set up.

poc
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Re: network mystery!!??

[Tim via users]

On Wed, 2022-04-20 at 02:41 -0700, Jack Craig wrote:
> i sent a reply to the question of what was the mystery ,
> but I don't see it on the thread did you get it?

It came through to the list.  If you're reading in gmail, it's probably
doing that thing where it doesn't show messages to your own address
from your own address.

I just started doing that to me, again.  It's not such as odd thing to
do as people might think:  How do you test your email is working?  Send
yourself a message.  Now, you need a second address to send tests from.

And, as you've probably discovered, if your posts to mailing lists
don't come back to you, it's confusing.

You can look for it in here:
https://lists.fedoraproject.org/archives/list/users%40lists.fedoraproject.org/

But after scrolling through page after page of chaos, I gave up.  I
couldn't see any obvious way to collapse all the messages into a list. 
But I'm not signed into it, and there may be more features if logged
in.
 
-- 
 
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Re: network mystery!!??

[Jack Craig]

i sent a reply to the question of what was the mystery ,
but I don't see it on the thread did you get it?

On Mon, Apr 18, 2022 at 8:07 PM Ed Greshko  wrote:

> On 19/04/2022 07:28, Jack Craig wrote:
> > this mystery has been resolved and my server is online.
>
> Is the solution easy to describe?
>
> --
> Did 황준호 die?
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Re: network mystery!!??

[Tim via users]

On Tue, 2022-04-19 at 12:57 -0700, Jack Craig wrote:
> I found this nifty tool in the world from some company called
> getsignal. it would look at your ports from the outside and tell you
> their status. so I keyed in HTTP and Https ports and sure enough from
> the Internet they were blocked

There's a few port scanning services around.  Since you're now exposed
on the internet, it's well worth checking a few other potentially
exploitable ports.

If it finds any, (1) reconfigure the service to not listen to
connections it shouldn't to, (2) configure your firewall to block them
as well.  Point 1 is far more important than point 2, it applies all
the time, the firewall only works when you let it.
 
-- 
 
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Re: network mystery!!??

[Jack Craig]

Now that my network mystery has been resolved, I thought I would explain my
challenges.

 for this to make sense I need to add a bit of backstory.

 my problem started about 12 months ago, I had purchased an static  IP
block from AT and
 the bandwidth package. it was fairly small but it worked with a pace
5238ac
modem Router from AT and it was working OK.  it didn't have much in the
way of
lan control; I wanted better Wi-Fi and better lan client control .

so I went out and  bought a nighthawk and started connecting it in a
cascade to the
Internet where the nighthawk backed up the AT router .

 come January this year I was looking at bandwidth short fall and decided
to get an upgrade

I ordered the upgraded bandwidth package and it was installed in early
February.

when the AT tech did
that installation, he swapped out the pace router for the arris BGW210-700
router
and all hell broke loose.

For almost a month I had been trying to get that cascade working from the
BGW210-700 to the Nighthawk. I explored
Google,  mfgr docs,  i looked everywhere trying to find samples of how
to make it work.

from all I read it should have worked but I couldn't get it to

It was at this point that I decided to appeal to the users on  the fedora
list and several gentlemen
were kind enough to help me  clear the mist from my path as it were.

 for a while we tried to get the cascading to work with no joy.  I decided
to bite the bullet pull
 the nighthawk out of the loop and just live with the AT router

The next couple of weeks I moved old router lan clients to the new router
topology.

 I got my lan clients moved over, I also got the static IP visible to the
world but still I
could not connect the internet to my web server.

The last clue in the puzzle came from port examining from firewalls out to
the Internet

why was I not connecting??

 I found this nifty tool in the world from some company called getsignal .
it would look at
your ports from the outside and tell you their status. so I keyed in HTTP
and Https ports and
sure enough from the Internet they were blocked

At this point all that remained was to use the port mapping and service
creation on the
AT router to map the external wan side ports to the lan web server and
it worked.

I renewed my letsencrypt certs and I am on down the road.
i even got my 'A' from my qualys ssl test! {Yeah}

Once again thanks to all that assisted me on this horrendous ride
but it's working now thank you again very much

On Mon, Apr 18, 2022 at 8:07 PM Ed Greshko  wrote:

> On 19/04/2022 07:28, Jack Craig wrote:
> > this mystery has been resolved and my server is online.
>
> Is the solution easy to describe?
>
> --
> Did 황준호 die?
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Re: network mystery!!??

[Ed Greshko]

On 19/04/2022 07:28, Jack Craig wrote:

this mystery has been resolved and my server is online.


Is the solution easy to describe?

--
Did 황준호 die?
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Re: network mystery!!??

[Jack Craig]

i'll be surprised if there arent a few tweaks still, but i can get back to
drone footage capture..

Thx again, ...

On Mon, Apr 18, 2022 at 6:36 PM Tim via users 
wrote:

> On Mon, 2022-04-18 at 16:28 -0700, Jack Craig wrote:
> > this mystery has been resolved and my server is online.
>
> I just tried.  Initially the browser was unable to connect.  But after
> a few retries it could.
>
> --
>
> uname -rsvp
> Linux 3.10.0-1160.62.1.el7.x86_64 #1 SMP Tue Apr 5 16:57:59 UTC 2022 x86_64
>
> Boilerplate:  All unexpected mail to my mailbox is automatically deleted.
> I will only get to see the messages that are posted to the mailing list.
>
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Re: network mystery!!??

[Tim via users]

On Mon, 2022-04-18 at 16:28 -0700, Jack Craig wrote:
> this mystery has been resolved and my server is online.

I just tried.  Initially the browser was unable to connect.  But after
a few retries it could.

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Re: network mystery!!??

[Jack Craig]

this mystery has been resolved and my server is online.

i am profusely grateful for the  wisdom of folks on this list including,
Ed, Samuel, George, Tim, Gordon, Richard, and Cameron.

thanks, jackc...


On Tue, Apr 5, 2022 at 4:19 AM George N. White III  wrote:

> On Tue, 5 Apr 2022 at 02:47, Gordon Messmer 
> wrote:
>
>> On 4/4/22 00:50, Samuel Sieb wrote:
>> > If you connect the Nighthawk to the BGW210 using one of the LAN ports
>> > on the Nighthawk, everything would be on the 192.168.1.x subnet and
>> > you could use the same SSID on both devices.  You would need to
>> > disable the DHCP server on the Nighthawk and most likely need to give
>> > the Nighthawk a static IP address on the LAN because they usually
>> > don't support getting it from DHCP.
>>
>>
>> At that point the Nighthawk would be just another switch, which doesn't
>> seem helpful *or* secure.
>>
>
> The Nighthawk also provides a wifi access point.
>
> --
> George N. White III
>
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Re: network mystery!!??

[George N. White III]

On Tue, 5 Apr 2022 at 02:47, Gordon Messmer 
wrote:

> On 4/4/22 00:50, Samuel Sieb wrote:
> > If you connect the Nighthawk to the BGW210 using one of the LAN ports
> > on the Nighthawk, everything would be on the 192.168.1.x subnet and
> > you could use the same SSID on both devices.  You would need to
> > disable the DHCP server on the Nighthawk and most likely need to give
> > the Nighthawk a static IP address on the LAN because they usually
> > don't support getting it from DHCP.
>
>
> At that point the Nighthawk would be just another switch, which doesn't
> seem helpful *or* secure.
>

The Nighthawk also provides a wifi access point.

-- 
George N. White III
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Re: network mystery!!??

[Samuel Sieb]

On 4/4/22 22:47, Gordon Messmer wrote:

On 4/4/22 00:50, Samuel Sieb wrote:
If you connect the Nighthawk to the BGW210 using one of the LAN ports 
on the Nighthawk, everything would be on the 192.168.1.x subnet and 
you could use the same SSID on both devices.  You would need to 
disable the DHCP server on the Nighthawk and most likely need to give 
the Nighthawk a static IP address on the LAN because they usually 
don't support getting it from DHCP. 



At that point the Nighthawk would be just another switch, which doesn't 
seem helpful *or* secure.


It's helpful because he needed more wireless coverage.  At least that 
was my understanding.  The BGW210 is already doing NAT, so there's no 
further security (and much complication) to be gained with a second NAT. 
 If he doesn't need the extra wifi, then the Nighthawk is redundant.

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Re: network mystery!!??

[Gordon Messmer]

If I'm reading this thread correctly, your original setup was as follows:

-
 - 108.90.204.76/24 -> gw: 108.90.204.1
/
arris BGW210-700
\
 - 192.168.1.254/24 (Blackhole-ATT WiFi network)
 - 108.220.213.126/29

 - 108.220.213.121/29 -> gw: 108.220.213.126
/
netgear nighthawk
\
 - 10.0.0.1/24

 - 10.0.0.101/24 -> gw: 10.0.0.1
/
ws.linuxlighthouse.com
-

That configuration is completely reasonable.  You shouldn't need to
try to use bridge mode, or IP Passthrough, or any other rewiring of
the network.

> 10.0.0.101ws.linuxlighthouse.com (internal IP) 2 packets 
> transmitted, 2 received, 0% packet loss, time 1033ms

You initially provided some address ping information, but didn't
specify which device was gathering that information.  That may be
relevant information, because only a device in the 10.0.0.0/24 network
should have been able to reach all of those addresses.  I'm assuming
that the information was gathered from within 10.0.0.0/24.

> consider the below traceroute, it reports hops up to 108.90.204.76, stopping 
> there instead of doing one more hop

For problems of this sort, I generally consider several possibilities:
1: The Arris firewall is not allowing traffic into your network from the public.
2: The Netgear firewall is not allowing ICMP (ping) from the public.
3: The Netgear is configured to redirect (forward) 108.220.213.121 to
your server, but the NAT isn't working correctly.
4: Your Arris modem and Nighthawk router both have addresses in
108.220.213.120/29 set up, but ATT isn't routing that network to you,
and outbound traffic is NATed by the Arris modem.

I think we can discount #1 and #4, since we can ping 108.220.213.126
from the public, but we can also test those things:

You should be able to connect a laptop directly to the Arris modem,
and configure the laptop with the IP address 108.220.213.122, netmask
255.255.255.248, gateway 108.220.213.126. (DNS: 8.8.8.8 if you don't
have another preference.)  Once connected, the laptop should have
public internet access.  You should be able to access
https://www.whatismyip.com/, and your public IPv4 address as seen by
that page should be 108.220.213.122.  Someone outside of your network
should be able to ping and traceroute to that address.

#2 and #3 are harder to test, but if you can verify that another
device is fully functional on another address, then you can at least
focus your attention on the Nighthawk configuration.  At that point,
I'd turn off any IP forwarding or DNAT settings you'd configured on
the Nighthawk, and try to turn off the firewall.  With the firewall
off, you should be able to ping and tracroute to the Nighthawk from
outside.  Next you can try to get any port forwards working, and
finally you can turn the firewall back on and see if NAT still works.
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Re: network mystery!!??

[Gordon Messmer]

On 4/4/22 00:50, Samuel Sieb wrote:
If you connect the Nighthawk to the BGW210 using one of the LAN ports 
on the Nighthawk, everything would be on the 192.168.1.x subnet and 
you could use the same SSID on both devices.  You would need to 
disable the DHCP server on the Nighthawk and most likely need to give 
the Nighthawk a static IP address on the LAN because they usually 
don't support getting it from DHCP. 



At that point the Nighthawk would be just another switch, which doesn't 
seem helpful *or* secure.


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Re: network mystery!!??

[Tim via users]

Ed Greshko:
> I've basically been following, yet ignoring this thread.  As the
> amount of words make it difficult for understand the
> network topology.  It would be correct to say that I'm lost.

I've felt the same way, I think this is what I can figure out:
https://www.youtube.com/watch?v=cl4cn_lx6Mc

His internal network seems overly complicated.  Any time I've tried
double-natting as an experiment it's hit and miss whether outgoing
stuff works without pain (e.g. browsing the web), but I've never tried
letting something through in the other direction.

I definitely get the impression it'd be easier with one less router.

I kinda get the impression it might be easier not trying to get a PC
inside the LAN to use an external IP, just having the router accept the
external address and forward it through to an internal IP (I've done
that before, as a way of letting someone get a very large file from my
PC).  It all depends on how fancy his webserver is going to behave.
 
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Linux 3.10.0-1160.59.1.el7.x86_64 #1 SMP Wed Feb 23 16:47:03 UTC 2022 x86_64
 
Boilerplate:  All unexpected mail to my mailbox is automatically deleted.
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Re: network mystery!!??

[Samuel Sieb]

On 4/4/22 12:07, Jack Craig wrote:



On Mon, Apr 4, 2022 at 12:54 AM Samuel Sieb > wrote:




If you connect the Nighthawk to the BGW210 using one of the LAN
ports on
the Nighthawk, everything would be on the 192.168.1.x subnet and you
could use the same SSID on both devices.  You would need to disable the
DHCP server on the Nighthawk and most likely need to give the Nighthawk
a static IP address on the LAN because they usually don't support
getting it from DHCP.

*
*
*this approach makes sense.*

*so to implement this change,
*
*1. update networkmanager to assign 108.220.213.121 to the 
server(currently 10.0.0.101) and plug it into the att rtr*


You can't use that IP address unless you make some major changes to the 
config on the ATT router.  And if those changes aren't made correctly, 
you would lose all internet access.  I hope you aren't paying extra for 
the subnet vs a single static address.


You need to give a static 192.168.1.x address to the server.  Make sure 
that the static addresses you are using are outside the range of the 
DHCP server.



*2. disable dhcp on nh rtr*


yes


*3. enable wifi for 2.4 & 5mhz on the att rtr*


I thought you were already using it.  You can use the same SSID on both 
routers after this rearrangement.



*4. set up a static ip for nh rtr on the 192.168.1.0*


yes.  Make sure you're setting the LAN address, not the WAN address.


*5. plug nh rtr into the att rtr leaving switch attached to the nh rtr*


The switch can be plugged into either router, since it's all one subnet 
now.  The NH WAN port should not be connected to anything.


Once this is all done, you can configure a port forward on the ATT 
router to access the web server.

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Re: network mystery!!??

[Ed Greshko]

On 05/04/2022 03:07, Jack Craig wrote:

*you can see access from internet to att rtr, nh rtr, switch with 10.0.0.0 lan 
addrs
*
*
*
*https://drive.google.com/file/d/1NIuvNtE9dOyUZeW96D-i3En5e9p_Ggrb/view?usp=sharing*
*
*
*https://drive.google.com/file/d/1mQ3-kYqSEQIKhsFjTTGTuWyRN-kg4WGp/view?usp=sharing*
*
*


Access denied for both those links.

Also, seems as if you DNS has finally timed out

[egreshko@meimei ~]$ whois linuxlighthouse.com
[Querying whois.verisign-grs.com]
[Redirected to whois.networksolutions.com]
[Querying whois.networksolutions.com]
[Unable to connect to remote host]

[egreshko@meimei ~]$ host ws.linuxlighthouse.com
Host ws.linuxlighthouse.com not found: 2(SERVFAIL)


And, of course, http://ws.linuxlighthouse.com/  cannot be reached.

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Re: network mystery!!??

[Jack Craig]

On Mon, Apr 4, 2022 at 12:54 AM Samuel Sieb  wrote:

>
>
> If you connect the Nighthawk to the BGW210 using one of the LAN ports on
> the Nighthawk, everything would be on the 192.168.1.x subnet and you
> could use the same SSID on both devices.  You would need to disable the
> DHCP server on the Nighthawk and most likely need to give the Nighthawk
> a static IP address on the LAN because they usually don't support
> getting it from DHCP.
>

*this approach makes sense.*

*also links to hardware images,...*


*you can see access from internet to att rtr, nh rtr, switch with 10.0.0.0
lan addrs*

*https://drive.google.com/file/d/1NIuvNtE9dOyUZeW96D-i3En5e9p_Ggrb/view?usp=sharing
*

*https://drive.google.com/file/d/1mQ3-kYqSEQIKhsFjTTGTuWyRN-kg4WGp/view?usp=sharing
*


*so to implement this change, *

*1. update networkmanager to assign 108.220.213.121 to the server(currently
10.0.0.101) and plug it into the att rtr*

*2. disable dhcp on nh rtr*

*3. enable wifi for 2.4 & 5mhz on the att rtr*

*4. set up a static ip for nh rtr on the 192.168.1.0*

*5. plug nh rtr into the att rtr leaving switch attached to the nh rtr*

*acknowledging my reduced skill in this endeavour, have i included all
necessary steps and in the right order??*





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Re: network mystery!!??

[Samuel Sieb]

On 4/3/22 20:09, Jack Craig wrote:
On Sun, Apr 3, 2022 at 6:06 PM Samuel Sieb > wrote:


On 3/25/22 19:29, Jack Craig wrote:
 > i am working to restore a web server to internet access that is
failing
 > after att update
 > the att older modem (pace 5238ac) with arris BGW210-700.
 >
 > i have a static ip from att in the range
108.220.213.0/255.255.255.248 
 > >, 108.220.213.121 is the
external
 > ip for the server.
 >
 > the bgw210-700 is the primary router/modem and is connected to a 3rd
 > party router, netgear nighthawk,
 >
 > the internal 10.0.0.0/  >  connects to the netgear nighthawk

I'm going to try to coalesce the bits of information from various
emails, but it's still mostly blanks...

Is the BGW210 connected via DSL or the Optical uplink port?


no, (and i hope to have pix in the am), the bgw210770 lan port 1 of 4, 
connects
to nighthawk internet port of the nighthawk. a nighthawk lan port is 
used to connect 16 port switch.
all the internal hosts, including the intended web server is plugged 
into that switch.


That was not a yes/no question.  You have to be connected to the 
upstream through one of those.



You have a static IP subnet which should be
108.220.213.120/255.255.255.248
 as explained by Richard.


yes, i accept my error in that ip/subnet map.


Are you wanting to use multiple addresses?


  att supports only 1 ip exposed ip so i didnt expect an option for more 
than 1.


What do you mean by that?  You said that you had a static subnet as 
discussed in the previous question.



Do you want a computer on your network to use one of those public
addresses or are you just trying to port forward from one of those
addresses?

There are a few ways to do those options.

an earlier suggestion was to plug the srvr into the bgw210700
as well as the nighthawk. i've been looking to update my configuration


Without more extensive changes, that would be the easiest solution 
instead of trying to port forward through two NAT interfaces.



Where is the web server located in your network?

well, 10.0.0.101 is the internal ip for the web server. 108.220.213.121 
is the external ip for that same web server.


Is that IP address the one on the BGW box?  If not, with your current 
configuration, there's no way to use that address.



Are you using the wifi from both the BGW210 and the Nighthawk?
If so, do they have different SSIDs?

blackhole-nh is the nighthawk, blackhole-att is the bgw210700


Do you use both of those?  So you have to switch SSIDs when you move 
around your house?



Do you have the Nighthawk connected to the BGW210 using the WAN port or
a LAN port?

lan port 1.


I see now that my question was ambiguous.  I meant which port on the 
Nighthawk did you connect to the BGW210 LAN port?



I'm guessing it's the WAN port because you have both a 192.168.x.x
subnet (I assume that's the BGW210 LAN) and a 10.0.x.x subnet (I assume
that's the Nighthawk LAN).  You would be better off connecting the
Nighthawk to the BGW210 using one of the Nighthawk's LAN ports instead,
so you only have one private subnet.  But this also depends on the
answers to the questions about using the multiple public addresses.

  Your suggestion makes sense. i just need to get router access from 
this configuration.


the current setup allows my firefox session to access both 10.0.0.1 & 
192.168.1.254


If you connect the Nighthawk to the BGW210 using one of the LAN ports on 
the Nighthawk, everything would be on the 192.168.1.x subnet and you 
could use the same SSID on both devices.  You would need to disable the 
DHCP server on the Nighthawk and most likely need to give the Nighthawk 
a static IP address on the LAN because they usually don't support 
getting it from DHCP.

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Re: network mystery!!??

[Samuel Sieb]

On 4/3/22 23:45, Ed Greshko wrote:

On 04/04/2022 09:02, Samuel Sieb wrote:
I'm going to try to coalesce the bits of information from various 
emails, but it's still mostly blanks...


Is the BGW210 connected via DSL or the Optical uplink port? 


I've basically been following, yet ignoring this thread.  As the amount 
of words make it difficult for understand the

network topology.  It would be correct to say that I'm lost.

I would have thought that the simple act of replacing the ISP supplied 
equipment the "pace 5238ac" with the "BGW210-700"

would be transparent.  Apparently not.


Maybe the original box was in bridge mode.  This new one doesn't really 
have a proper bridge mode, although there are things you can do to kind 
of simulate it.


If I read a latter email correctly, the OP will be posting a link to a 
network diagram to make things clear..


I also don't quite understand why a system can't be connected directly 
to one of the ports of new "BGW210-700" just
to test that it works. The system could be configured with one of the 
assigned IPs or testes with DHCP and see if the new

DSL router assigns an IP.


His second router is connected there and is getting an IP address. 
That's the 192.168.x.x range.  On the other side of his router is 
10.0.x.x.  So double NAT which is not great.

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Re: network mystery!!??

[Ed Greshko]

On 04/04/2022 09:02, Samuel Sieb wrote:

I'm going to try to coalesce the bits of information from various emails, but 
it's still mostly blanks...

Is the BGW210 connected via DSL or the Optical uplink port? 


I've basically been following, yet ignoring this thread.  As the amount of 
words make it difficult for understand the
network topology.  It would be correct to say that I'm lost.

I would have thought that the simple act of replacing the ISP supplied equipment the "pace 
5238ac" with the "BGW210-700"
would be transparent.  Apparently not.

If I read a latter email correctly, the OP will be posting a link to a network 
diagram to make things clear..

I also don't quite understand why a system can't be connected directly to one of the 
ports of new "BGW210-700" just
to test that it works. The system could be configured with one of the assigned 
IPs or testes with DHCP and see if the new
DSL router assigns an IP.

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Re: network mystery!!??

[Jack Craig]

On Sun, Apr 3, 2022 at 6:06 PM Samuel Sieb  wrote:

> On 3/25/22 19:29, Jack Craig wrote:
> > i am working to restore a web server to internet access that is failing
> > after att update
> > the att older modem (pace 5238ac) with arris BGW210-700.
> >
> > i have a static ip from att in the range 108.220.213.0/255.255.255.248
> > , 108.220.213.121 is the external
> > ip for the server.
> >
> > the bgw210-700 is the primary router/modem and is connected to a 3rd
> > party router, netgear nighthawk,
> >
> > the internal 10.0.0.0/   connects to the netgear
> nighthawk
>
> I'm going to try to coalesce the bits of information from various
> emails, but it's still mostly blanks...
>
> Is the BGW210 connected via DSL or the Optical uplink port?
>

no, (and i hope to have pix in the am), the bgw210770 lan port 1 of 4,
connects
to nighthawk internet port of the nighthawk. a nighthawk lan port is used
to connect 16 port switch.
all the internal hosts, including the intended web server is plugged into
that switch.


>
> You have a static IP subnet which should be
> 108.220.213.120/255.255.255.248 as explained by Richard.
>

yes, i accept my error in that ip/subnet map.


>
> Are you wanting to use multiple addresses?
>

 att supports only 1 ip exposed ip so i didnt expect an option for more
than 1.

>
> Do you want a computer on your network to use one of those public
> addresses or are you just trying to port forward from one of those
> addresses?
>
> There are a few ways to do those options.
>
an earlier suggestion was to plug the srvr into the bgw210700
as well as the nighthawk. i've been looking to update my configuration

>
> Where is the web server located in your network?
>
well, 10.0.0.101 is the internal ip for the web server. 108.220.213.121 is
the external ip for that same web server.


> Would you be willing to move it to a different section?
>

yes. clearly my approach is not happening; i trust the respondents on this
thread; if y'all said stand on my head, i'd try.. ;)


>
> Are you using the wifi from both the BGW210 and the Nighthawk?
> If so, do they have different SSIDs?
>

blackhole-nh is the nighthawk, blackhole-att is the bgw210700


>
> Do you have the Nighthawk connected to the BGW210 using the WAN port or
> a LAN port?
>

lan port 1.


> I'm guessing it's the WAN port because you have both a 192.168.x.x
> subnet (I assume that's the BGW210 LAN) and a 10.0.x.x subnet (I assume
> that's the Nighthawk LAN).  You would be better off connecting the
> Nighthawk to the BGW210 using one of the Nighthawk's LAN ports instead,
> so you only have one private subnet.  But this also depends on the
> answers to the questions about using the multiple public addresses.


 Your suggestion makes sense. i just need to get router access from this
configuration.

the current setup allows my firefox session to access both 10.0.0.1 &
192.168.1.254

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Re: network mystery!!??

[Samuel Sieb]

On 3/25/22 19:29, Jack Craig wrote:
i am working to restore a web server to internet access that is failing 
after att update

the att older modem (pace 5238ac) with arris BGW210-700.

i have a static ip from att in the range 108.220.213.0/255.255.255.248 
, 108.220.213.121 is the external 
ip for the server.


the bgw210-700 is the primary router/modem and is connected to a 3rd 
party router, netgear nighthawk,


the internal 10.0.0.0/   connects to the netgear nighthawk


I'm going to try to coalesce the bits of information from various 
emails, but it's still mostly blanks...


Is the BGW210 connected via DSL or the Optical uplink port?

You have a static IP subnet which should be 
108.220.213.120/255.255.255.248 as explained by Richard.


Are you wanting to use multiple addresses?

Do you want a computer on your network to use one of those public 
addresses or are you just trying to port forward from one of those 
addresses?


There are a few ways to do those options.

Where is the web server located in your network?
Would you be willing to move it to a different section?

Are you using the wifi from both the BGW210 and the Nighthawk?
If so, do they have different SSIDs?

Do you have the Nighthawk connected to the BGW210 using the WAN port or 
a LAN port?
I'm guessing it's the WAN port because you have both a 192.168.x.x 
subnet (I assume that's the BGW210 LAN) and a 10.0.x.x subnet (I assume 
that's the Nighthawk LAN).  You would be better off connecting the 
Nighthawk to the BGW210 using one of the Nighthawk's LAN ports instead, 
so you only have one private subnet.  But this also depends on the 
answers to the questions about using the multiple public addresses.

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Re: network mystery!!??

[Ed Greshko]

On 30/03/2022 04:40, Jack Craig wrote:

*i dont have a way to show the network as an image/ diagram as if i post with an
included png or jpg, the post is dropped.
*


You could put your png/jpg on google drive and then make the link to it public 
and post the
link.

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Re: network mystery!!??

[Richard]

> Date: Saturday, March 26, 2022 23:35:31 -0700
> From: Jack Craig 
>
>> > i have a static ip from att in the range
>> > 108.220.213.0/255.255.255.248, 108.220.213.121 is the external
>> > ip for the server.
>> 
>> But you list two IP addresses from that subnet.  Did they actually
>> give you two addresses?  I can ping the .126 one, but not the .121
>> one.
> 
> .121 was supposed to be exported ip, the 126 they said was
> gateway...
> 
> block of 8, 5 usable...
> 

Not trying to wade too deeply into this at the moment, but noticed:

  > 108.220.213.0/255.255.255.248, 108.220.213.121 

in the above.

That ip address/netmask doesn't result in an allocated block in the
108.220.213.120 range. So, if you are using it in your configuration
things will be misaligned. 

An ip address/netmask of 108.220.213.0/255.255.255.248 results in a
usable range of 108.220.213.1 - 108.220.213.6.

An ip address/netmask of 108.220.213.120/255.255.255.248 results in a
usable range of 108.220.213.121 - 108.220.213.126. The latter seems
to be what you believe your allocation is.

On the more general front, drawings of your network layout aren't
necessary, but a clear description is. I think it would be useful if
you carefully list the devices and give the inbound and outbound
address/range for each of the devices. Include information on any
mappings (where the inbound and outbound ranges are different) as
well as port forwardings>.

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Re: network mystery!!??

[Jack Craig]

On Mon, Mar 28, 2022 at 10:11 PM Samuel Sieb  wrote:

> On 3/28/22 12:10, Jack Craig wrote:
> > i needed more wifi service so i bought the nighthawk thinking to cascade
> > the NH behind(required)
> > arris bgw210700. in last years config, i had all traffic routed through
> > the ATT and did port mapping from the internet
> > from static ip external to internal network(10.0.0.0) on the NH.
> >
> > 10.0.0.0 was not shared with the public subnet and it all just worked.
> >
> > tracing ip's & networks, i get...
> >
> > 108.90.204.1   isp GW
> > 108.90.204.76 isp ATT rtr (WAN side)
> >
> > 192.168.1.254 ATT rtr access (LAN side)
> >
> > 10.0.0.1   NH  GW   (NH LAN )
> >
> > 10.0.0.101  (aka 108.220.213.121)  WS srvr.
> >
> > is this an unreasonable configuration given my goal?
> >
> > it was also asked what networks i used to transition public subnet to
> > private subnet as, ...
> >
> > 192.1
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> *68.1.0 to 10.0.0.0 [Cloud to att broadband]][ATT rtr 192.168.1.254
>  device_id ]--lan port 1 connect to NH uplink --[NH rtr gateway
>  10.0.0.1  ][NH rtr gateway  uplink netgear switch ][-- netgear switch,
> port 15 ]  10.0.0.101 SRVR[-- netgear switch, port 14 ]  10.0.0.120 NVR[--
> netgear switch, port 13 ]  10.0.0.122 IP Camera[-- netgear switch, port 10
> ]  10.0.0.124 IP Camera[-- netgear switch, port 12 ]  10.0.0.126 IP
> Camera[-- netgear switch, port 12 ]  10.0.0.126 IP Camerai dont have a way
> to show the network as an image/ diagram as if i post with an included png
> or jpg, the post is dropped.wall broadband connection goes to ATT rtr.att
> rtr connects to the NH rtrNH rtr connects to switch*


if this isn't helpful, how might i improve it?

>
>
> Instead of all this random noise, can you please make a diagram of your
> devices, their ports and which IP is where.  Your questions and
> descriptions are mostly incomprehensible.  You had an almost useful
> diagram a couple of days ago, but with no IP addresses.
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Re: network mystery!!??

[Samuel Sieb]

On 3/28/22 12:10, Jack Craig wrote:
i needed more wifi service so i bought the nighthawk thinking to cascade 
the NH behind(required)
arris bgw210700. in last years config, i had all traffic routed through 
the ATT and did port mapping from the internet

from static ip external to internal network(10.0.0.0) on the NH.

10.0.0.0 was not shared with the public subnet and it all just worked.

tracing ip's & networks, i get...

108.90.204.1   isp GW
108.90.204.76 isp ATT rtr (WAN side)

192.168.1.254 ATT rtr access (LAN side)

10.0.0.1   NH  GW   (NH LAN )

10.0.0.101  (aka 108.220.213.121)  WS srvr.

is this an unreasonable configuration given my goal?

it was also asked what networks i used to transition public subnet to
private subnet as, ...

192.168.1.0 to 10.0.0.0


Instead of all this random noise, can you please make a diagram of your 
devices, their ports and which IP is where.  Your questions and 
descriptions are mostly incomprehensible.  You had an almost useful 
diagram a couple of days ago, but with no IP addresses.

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Re: network mystery!!??

[Jack Craig]

thx, i was about to ask for recommendations, i'll read this and see what
coherence i can bring to this site

On Mon, Mar 28, 2022 at 4:30 PM Go Canes  wrote:

> On Mon, Mar 28, 2022 at 3:11 PM Jack Craig 
> wrote:
> > On Mon, Mar 28, 2022 at 7:22 AM Go Canes 
> wrote:
> >> I've been reluctant to contribute as well, due to not really
> >> understanding the setup.  But given the Cable Modem was replaced, I've
> >> been wondering if this is as simple as the prior modem being in
> >> "bridge mode" - i.e. passing all traffic without usingg NAT or routing
> >
> >
> > i had thought of using the firewalls of both the ATT rtr & NH firewalls
> passing through
> > http & https. also i thought bridge mode wsa a security risk???
>
> *Anything* exposed to the internet suffers the security risk
> (including your web server).  If the NH (Nighthawk, I am assuming) is
> running in "firewall" mode, putting the Cable Modem in bridge mode
> moves the risk from the Cable Modem to the Nighthawk.  IMHO, *you*
> control the updates to the Nighthawk, so you can make sure it is
> up-to-date.  Your ISP may or may not keep the Cable Modem up-to-date.
>
> Since you have two firewall/NAT routers (if I have understood things
> correctly), you might consider connecting all the Internet exposed
> systems to the Cable Modem (assuming it has multiple ports), and put
> your private systems behind the Nighthawk.
>
> Crude diagram of what I am suggesting that may or may not survive
> formatting.:
>
> ISP - Cable Modem -| - Web Server
>   | - something else that needs to be
> publicly accessible
>   | - Nighthawk -|- laptop
>  | - desktop
>
> (and I have no idea if this fits in with how your ISP has your IP
> subnet configured - I am starting with a clean slate.)
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Re: network mystery!!??

[George N. White III]

On Fri, 25 Mar 2022 at 23:30, Jack Craig  wrote:

>
> i have a networking mystery ; i hope someone might give me a clue.
>
> i am working to restore a web server to internet access that is failing
> after att update
> the att older modem (pace 5238ac) with arris BGW210-700.
>


Did it come with manuals (or URL's for manuals)?
Arris BGW210-700 Broadband Gateway User Manual and Admin Help - Manuals+

 has:


The BGW210-700 Broadband Gateway hardware platform can host different
software.
The Advanced Residential Gateway supports VoIP, IPv6, video delivery,
security firewall,
and extensive remote management features.  The BGW210-700 Broadband Gateway
delivers robust video, primary line telephony, and high-speed data over
broadband networks
via high-speed Internet connectivity. The four Gigabit Ethernet ports can
be separated into
different services allowing the configuration of dedicated ports for data.


The Ask ARRIS web site gives you web access to service and support tools.
You will
need to register using your support contract ID and email address. Ask
ARRIS is located at:

http://www.arris.com/support



Unless another community member has encountered the same hardware and use
case, you
are going to need a proper technical manual.


> i have a static ip from att in the range 108.220.213.0/255.255.255.248,
> 108.220.213.121 is the external ip for the server.
>
> the bgw210-700 is the primary router/modem and is connected to a 3rd party
> router, netgear nighthawk,
>
>
You might be able to relegate firewall duties to the NetGear box:

Bridge-mode vs IP Pass-through - Setup Information | AT Community Forums
(att.com)


[...]

-- 
George N. White III
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Re: network mystery!!??

[Go Canes]

On Mon, Mar 28, 2022 at 3:11 PM Jack Craig  wrote:
> On Mon, Mar 28, 2022 at 7:22 AM Go Canes  wrote:
>> I've been reluctant to contribute as well, due to not really
>> understanding the setup.  But given the Cable Modem was replaced, I've
>> been wondering if this is as simple as the prior modem being in
>> "bridge mode" - i.e. passing all traffic without usingg NAT or routing
>
>
> i had thought of using the firewalls of both the ATT rtr & NH firewalls 
> passing through
> http & https. also i thought bridge mode wsa a security risk???

*Anything* exposed to the internet suffers the security risk
(including your web server).  If the NH (Nighthawk, I am assuming) is
running in "firewall" mode, putting the Cable Modem in bridge mode
moves the risk from the Cable Modem to the Nighthawk.  IMHO, *you*
control the updates to the Nighthawk, so you can make sure it is
up-to-date.  Your ISP may or may not keep the Cable Modem up-to-date.

Since you have two firewall/NAT routers (if I have understood things
correctly), you might consider connecting all the Internet exposed
systems to the Cable Modem (assuming it has multiple ports), and put
your private systems behind the Nighthawk.

Crude diagram of what I am suggesting that may or may not survive
formatting.:

ISP - Cable Modem -| - Web Server
  | - something else that needs to be
publicly accessible
  | - Nighthawk -|- laptop
 | - desktop

(and I have no idea if this fits in with how your ISP has your IP
subnet configured - I am starting with a clean slate.)
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Re: network mystery!!??

[Jack Craig]

On Sat, Mar 26, 2022 at 11:40 PM Jack Craig 
wrote:

>
>
> On Sat, Mar 26, 2022 at 11:06 PM Ed Greshko 
> wrote:
>
>> On 27/03/2022 13:57, Jack Craig wrote:
>> >
>> >
>> > On Sat, Mar 26, 2022 at 10:20 PM Ed Greshko 
>> wrote:
>> >
>> > On 27/03/2022 12:19, Jack Craig wrote:
>> > > after much wailing and gnashing of teeth, att did send a tech and
>> for general internet access its fine.
>> > > just not working with my configuration...
>> > >
>> > > at the moment, trying to find a static route option for att rtr.
>> > >
>> > > static routes on the internal router wont help, right??
>> >
>> > I guess I don't really understand what HW and Physical
>> Configuration.
>> >
>> > You have a DSL router.  The router has 4 Ethernet ports.  In your
>> configuration, what are these ports connected to?
>> >
>> >
>> > ok, ...
>> >
>> > (internet)---lan connect---> nighthawk>--lan connect-[netgear switch]--
>> >
>> > make sense?
>> >
>>
>> Is your srvr configured manually?  Meaning, a static IP?
>>
>> If so, try connecting the bgw210700 directly to the srvr.  Then try
>> accessing sites from the server.
>>
>
> but srvr is on 10.0.0.101, att rtr is between 192.168.1.254 and
> 108.90.204.76.
>
> still make sense??
>

192.168.1.254 is att rtr (i can'see',but not touch 108.90.204.0)
att rtr is dhcp 192.168.63-192.168.1.200)

10.0.0.1 is the NH using port mapping to map 108.220.213.121 <-->
10.0.0.101

is my configuration goal an unreasonable one?

>
>
>>
>> --
>> Did 황준호 die?
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Re: network mystery!!??

[Jack Craig]

On Mon, Mar 28, 2022 at 7:22 AM Go Canes  wrote:

> On Mon, Mar 28, 2022 at 12:18 AM Ed Greshko 
> wrote:
> >
> > On 28/03/2022 11:33, Samuel Sieb wrote:
> > > Is it really just me?  I see various people responding.  Do you
> actually understand what his setup is?  It doesn't make any sense at all to
> me.
> >
> > It is not only you.  I haven't grasped the setup either.
> >
> > However, I would note that everything was working for him the way he
> wanted until his Broadband supplier
> > replaced the Cable Modem.
>
> I've been reluctant to contribute as well, due to not really
> understanding the setup.  But given the Cable Modem was replaced, I've
> been wondering if this is as simple as the prior modem being in
> "bridge mode" - i.e. passing all traffic without usingg NAT or routing
>

i had thought of using the firewalls of both the ATT rtr & NH firewalls
passing through
http & https. also i thought bridge mode wsa a security risk???


> - and the new modem needs to be reconfigured?
>

att came on site and reconfigured the bgw210700 to its setup
as I bought the static ip & isp service,
i expect they have it properly set, But!
as you see i am over my head...

last year this time,   i had a pace 5238ac in the at rtr role.
as the result of a mid february sserive upgrade/rtr replacement.

i needed more wifi service so i bought the nighthawk thinking to cascade
the NH behind(required)
arris bgw210700. in last years config, i had all traffic routed through the
ATT and did port mapping from the internet
from static ip external to internal network(10.0.0.0) on the NH.

10.0.0.0 was not shared with the public subnet and it all just worked.

tracing ip's & networks, i get...

108.90.204.1   isp GW
108.90.204.76 isp ATT rtr (WAN side)

192.168.1.254 ATT rtr access (LAN side)

10.0.0.1   NH  GW   (NH LAN )

10.0.0.101  (aka 108.220.213.121)  WS srvr.

is this an unreasonable configuration given my goal?

it was also asked what networks i used to transition public subnet to
private subnet as, ...

192.168.1.0 to 10.0.0.0


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Re: network mystery!!??

[Go Canes]

On Mon, Mar 28, 2022 at 12:18 AM Ed Greshko  wrote:
>
> On 28/03/2022 11:33, Samuel Sieb wrote:
> > Is it really just me?  I see various people responding.  Do you actually 
> > understand what his setup is?  It doesn't make any sense at all to me.
>
> It is not only you.  I haven't grasped the setup either.
>
> However, I would note that everything was working for him the way he wanted 
> until his Broadband supplier
> replaced the Cable Modem.

I've been reluctant to contribute as well, due to not really
understanding the setup.  But given the Cable Modem was replaced, I've
been wondering if this is as simple as the prior modem being in
"bridge mode" - i.e. passing all traffic without usingg NAT or routing
- and the new modem needs to be reconfigured?
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Re: network mystery!!??

[Ed Greshko]

On 28/03/2022 11:33, Samuel Sieb wrote:
Is it really just me?  I see various people responding.  Do you actually understand what his setup is?  It doesn't make any sense at all to me. 


It is not only you.  I haven't grasped the setup either.

However, I would note that everything was working for him the way he wanted 
until his Broadband supplier
replaced the Cable Modem.

--
Did 황준호 die?
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Re: network mystery!!??

[Samuel Sieb]

On 3/26/22 23:35, Jack Craig wrote:



On Sat, Mar 26, 2022 at 11:14 PM Samuel Sieb > wrote:


On 3/26/22 22:57, Jack Craig wrote:
 > (internet)---lan connect--- nighthawk>--lan connect-[netgear switch]--

Now we're getting somewhere.  Can you also assign the following IP
addresses from your original email into that diagram?

10.0.0.101 ws.linuxlighthouse.com 
(internal IP) 2 packets
transmitted, 2 received, 0% packet loss, time 1033ms
10.0.0.1                           Blackhole-NH
2 packets transmitted, 2 received, 0% packet loss, time 1018ms
192.168.1.254                 Blackhole-ATT                        2
packets transmitted, 2 received, 0% packet loss, time 1001ms
108.90.204.76             att subnet (local router)            2
packets
transmitted, 2 received, 0% packet loss, time 1002ms
108.90.204.1            att subnet (remote GW)               2 packets
transmitted, 2 received, 0% packet loss, time 1001ms
108.220.213.121 ws.linuxlighthouse.com
 (public IP) 2 packets
transmitted, 2 received, 0% packet loss, time 1001ms
108.220.213.126   linuxlighthouse (public GW)          2 packets
transmitted, 2 received, 0% packet loss, time 1001ms

You wrote:

  > i have a static ip from att in the range
108.220.213.0/255.255.255.248
, 108.220.213.121 is the
external ip for
the server.

But you list two IP addresses from that subnet.  Did they actually give
you two addresses?  I can ping the .126 one, but not the .121 one.


.121 was supposed to be exported ip, the 126 they said was gateway...

block of 8, 5 usable...


Ok, they give you a small subnet.  If .126 is the gateway, then is that 
your cable modem or the upstream gateway or do you have some computer on 
that address?



1: lo:  mtu 65536 qdisc noqueue state UNKNOWN
group default qlen 1000
     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
     inet 127.0.0.1/8  scope host lo
        valid_lft forever preferred_lft forever
     inet6 ::1/128 scope host
        valid_lft forever preferred_lft forever
*2: eno1:  mtu 1500 qdisc fq_codel
state UP group default qlen 1000
     link/ether 50:65:f3:4a:ec:e5 brd ff:ff:ff:ff:ff:ff
     altname enp0s31f6
     inet 10.0.0.101/24  brd 10.0.0.255 scope
global noprefixroute eno1
        valid_lft forever preferred_lft forever
     inet6 fe80::2f5c:874d:5113:3d37/64 scope link noprefixroute
        valid_lft forever preferred_lft forever*
3: virbr0:  mtu 1500 qdisc
noqueue state DOWN group default qlen 1000
     link/ether 52:54:00:06:e4:2a brd ff:ff:ff:ff:ff:ff
     inet 192.168.122.1/24  brd
192.168.122.255 scope global virbr0
        valid_lft forever preferred_lft forever


This doesn't help at all.  You still haven't created a useful diagram 
with IP addresses, so I have no idea how your network is configured. 
You appear to have several different network ranges hooked up somehow.


Is it really just me?  I see various people responding.  Do you actually 
understand what his setup is?  It doesn't make any sense at all to me.

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Re: network mystery!!??

[Cameron Simpson]

On 28Mar2022 08:42, Cameron Simpson  wrote:
>I'm wondering if you're worrying about routing when you should be
>worrying about the port forward.

Just to follow up to my own post, here's a description of my home LAN:

public-ip-addr
  NBN-modem
192.168.1.0/24
|
  --+---+--
|
192.168.1.2
fw
172.16.1.1
|
  +-+--
  |
172.16.1.6
home-server

I can ssh to my home server because the NBN modem has a public address.  
The configuration required is:

NBN modem: static route to 172.16.1.0/24 via the fw addr, 192.168.1.2.

NBN modem: inbound port fwd of TCP port 22 to 172.16.1.6:22.

fw: Firewall rule permitting TCP traffic to 172.16.1.6:22 from the 
public interface.

Default route for the home server if the fw internal addr.
Default route for the fw is the NBN modem internal addr.
NAT happens only on the NBN modem.

That's all.

Cheers,
Cameron Simpson 
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Re: network mystery!!??

[Cameron Simpson]

I'm wondering if you're worrying about routing when you should be 
worrying about the port forward.

Routing: can the server ping, say, 1.1.1.1? Can other hosts at various 
points on your LAN? If so, your routes are just fine.

Also, where are your NAT points? There has to be one on the innermost 
box with a public address, but is there one between your 10. and 192.  
networks? Hopefully the public router is the only thing doing NAT.

Port forward: have you inspected the inbound port forward settings on 
the router (the box with the public IP address, I've lost track). You 
need one mapping inbound TCP to ws-public-address:443 to 
ws-lan-address:443.

Can you run a tcpdump on one of the routers in the chain to see what 
happens? My local firewall's a UNIX box so I can do this there to watch 
any traffic between an internal host and the outer world.

ANd of course what others have been saying: traceroute does not tell you 
everything: various nodes may not respond as needed, and it certainly 
will not be passed through to your WS server inless the inbound rule is 
wide open (all traffic types), which would be a bad thing.

Cheers,
Cameron Simpson 
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Re: network mystery!!??

[Jack Craig]

On Sun, Mar 27, 2022 at 2:41 AM Tim via users 
wrote:

> Tim:
> >> Your ISP may be ignoring pings, many other services in between, and
> >> even your own router.
>
> Jack Craig:
> > but why can  i traceroute up to my side of the me<-->isp lan
> > segment??
>
> Because some of the equipment responds, others don't.  If you look back
> at your first posting (repasted below), you'll see there's some in the
> middle that don't respond, either.  They don't stop the connection
> going through past them, they just don't respond to pings.
>
>   1<1 ms<1 ms<1 ms  Linksys35675 [192.168.1.1]
>   2 9 ms 8 ms17 ms  142-254-236-209.inf.spectrum.com
> [142.254.236.209]
>   312 ms10 ms11 ms  lag-63.tjngcaac01h.netops.charter.com
> [24.30.172.49]
>   414 ms13 ms13 ms  lag-29.lsaicaev01r.netops.charter.com
> [72.129.18.240]
>   512 ms14 ms11 ms  lag-26.lsancarc01r.netops.charter.com
> [72.129.17.0]
>   619 ms13 ms14 ms
> lag-16.lsancarc0yw-bcr00.netops.charter.com [66.109.6.102]
>   725 ms37 ms42 ms  lag-3.pr2.lax10.netops.charter.com
> [107.14.19.41]
>   817 ms17 ms17 ms  192.205.32.253
>   922 ms21 ms21 ms  cr1.la2ca.ip.att.net [12.122.128.102]
>  1024 ms25 ms25 ms  12.122.158.41
>  11 *** Request timed out.
>  12 *** Request timed out.
>  1323 ms21 ms23 ms  99.134.39.15
>  1425 ms24 ms26 ms  99.161.44.79
>  1544 ms43 ms43 ms
> 108-90-204-76.lightspeed.mtryca.sbcglobal.net [108.90.204.76]
>  16 *** Request timed out.
>  17 *** Request timed out.
>  18 *** Request timed out.
>  19
>
>
>
> > the att rtr knows of the public ip, why doesnt it get used? the
> > mystery so far.
>
> When it comes to things close to you, working backwards, inside your
> LAN you have your own private IPs.  Your router will have its inside IP
> and an outside IP given to it by your ISP (those you can easily find
> out).  What your router first connects to at your ISP may have your-
> side and their-side IPs.  There will be routes going through the
> internals of the ISP through to their supplier.  And then there's all
> the interconnects to more of the web.
>
> For pings, and more to the point, HTTP traffic to your webserver, they
> have to get through all of that.  I think you're just going to have to
> talk to your ISP about why HTTP traffic doesn't get through.
>
> Though do look through your router's settings again.  There may be
> firewall or privacy options that block things.  And you would need to
> set up forwarding/routing rules go pass HTTP through it to your
> webserver.  Some routers have a DMZ zone feature (demilitarised zone),
> where all traffic you haven't specifically set a rule up for can be
> forwarded through to a specific LAN IP, or to a ethernet specific
> socket on the router.  Beware, though, it's unfiltered and unprotected
> by any firewall.  All the gumph on the internet trying to connect to
> you will be allowed through it.
>
>
>
> * the test to change the server ip partially works; that is the srvr can
> see the world, but my access to the rest of my internal 10.0.0.0 is not
> accessible.*

*if i ad the 10.0.0./24  route to the routing for
108.220.213.121 could i not then get to internal and external networks??*




*default via 10.0.0.1 dev eno1 proto static metric 100 10.0.0.0/24
 dev eno1 proto kernel scope link src 10.0.0.101 metric
100 192.168.122.0/24  dev virbr0 proto kernel
scope link src 192.168.122.1 linkdown *



> --
>
> uname -rsvp
> Linux 3.10.0-1160.59.1.el7.x86_64 #1 SMP Wed Feb 23 16:47:03 UTC 2022
> x86_64
>
> Boilerplate:  All unexpected mail to my mailbox is automatically deleted.
> I will only get to see the messages that are posted to the mailing list.
>
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Re: network mystery!!??

[Tim via users]

Tim:
>> Your ISP may be ignoring pings, many other services in between, and
>> even your own router.

Jack Craig:
> but why can  i traceroute up to my side of the me<-->isp lan
> segment?? 

Because some of the equipment responds, others don't.  If you look back
at your first posting (repasted below), you'll see there's some in the
middle that don't respond, either.  They don't stop the connection
going through past them, they just don't respond to pings.

  1<1 ms<1 ms<1 ms  Linksys35675 [192.168.1.1]
  2 9 ms 8 ms17 ms  142-254-236-209.inf.spectrum.com 
[142.254.236.209]
  312 ms10 ms11 ms  lag-63.tjngcaac01h.netops.charter.com 
[24.30.172.49]
  414 ms13 ms13 ms  lag-29.lsaicaev01r.netops.charter.com 
[72.129.18.240]
  512 ms14 ms11 ms  lag-26.lsancarc01r.netops.charter.com 
[72.129.17.0]
  619 ms13 ms14 ms  lag-16.lsancarc0yw-bcr00.netops.charter.com 
[66.109.6.102]
  725 ms37 ms42 ms  lag-3.pr2.lax10.netops.charter.com 
[107.14.19.41]
  817 ms17 ms17 ms  192.205.32.253
  922 ms21 ms21 ms  cr1.la2ca.ip.att.net [12.122.128.102]
 1024 ms25 ms25 ms  12.122.158.41
 11 *** Request timed out.
 12 *** Request timed out.
 1323 ms21 ms23 ms  99.134.39.15
 1425 ms24 ms26 ms  99.161.44.79
 1544 ms43 ms43 ms  108-90-204-76.lightspeed.mtryca.sbcglobal.net 
[108.90.204.76]
 16 *** Request timed out.
 17 *** Request timed out.
 18 *** Request timed out.
 19



> the att rtr knows of the public ip, why doesnt it get used? the
> mystery so far.

When it comes to things close to you, working backwards, inside your
LAN you have your own private IPs.  Your router will have its inside IP
and an outside IP given to it by your ISP (those you can easily find
out).  What your router first connects to at your ISP may have your-
side and their-side IPs.  There will be routes going through the
internals of the ISP through to their supplier.  And then there's all
the interconnects to more of the web.

For pings, and more to the point, HTTP traffic to your webserver, they
have to get through all of that.  I think you're just going to have to
talk to your ISP about why HTTP traffic doesn't get through.

Though do look through your router's settings again.  There may be
firewall or privacy options that block things.  And you would need to
set up forwarding/routing rules go pass HTTP through it to your
webserver.  Some routers have a DMZ zone feature (demilitarised zone),
where all traffic you haven't specifically set a rule up for can be
forwarded through to a specific LAN IP, or to a ethernet specific
socket on the router.  Beware, though, it's unfiltered and unprotected
by any firewall.  All the gumph on the internet trying to connect to
you will be allowed through it.

 
-- 
 
uname -rsvp
Linux 3.10.0-1160.59.1.el7.x86_64 #1 SMP Wed Feb 23 16:47:03 UTC 2022 x86_64
 
Boilerplate:  All unexpected mail to my mailbox is automatically deleted.
I will only get to see the messages that are posted to the mailing list.
 
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Re: network mystery!!??

[Ed Greshko]

On 27/03/2022 15:52, Ed Greshko wrote:

On 27/03/2022 15:15, Jack Craig wrote:



On Sun, Mar 27, 2022 at 12:12 AM Jack Craig  wrote:



    On Sun, Mar 27, 2022 at 12:06 AM Ed Greshko  wrote:

    On 27/03/2022 15:04, Jack Craig wrote:
    >
    >
    > On Sat, Mar 26, 2022 at 11:53 PM Ed Greshko  
wrote:
    >
    >     On 27/03/2022 14:40, Jack Craig wrote:
    >     > but srvr is on 10.0.0.101, att rtr is between 192.168.1.254 and 
108.90.204.76.
    >     >
    >     > still make sense??
    >
    >     I see
    >
    >     To test, I want you to make the server a static ip address of 
108.220.213.121 and then connect it to the
    >     BGW210-700.


what routing/gateway should the srvr use for this test??



The server itself.

I'm suspecting your new device is unable to act as a pass though to other 
routers.


To be more specific, it doesn't have to be the server.

Take any Linux Box, manually configure the eithernet port to have a public IP 
address.  Connect it to the new ATT
router and see if you have connectivity.


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Re: network mystery!!??

[Ed Greshko]

On 27/03/2022 15:15, Jack Craig wrote:



On Sun, Mar 27, 2022 at 12:12 AM Jack Craig  wrote:



On Sun, Mar 27, 2022 at 12:06 AM Ed Greshko  wrote:

On 27/03/2022 15:04, Jack Craig wrote:
>
>
> On Sat, Mar 26, 2022 at 11:53 PM Ed Greshko  
wrote:
>
>     On 27/03/2022 14:40, Jack Craig wrote:
>     > but srvr is on 10.0.0.101, att rtr is between 192.168.1.254 and 
108.90.204.76.
>     >
>     > still make sense??
>
>     I see
>
>     To test, I want you to make the server a static ip address of 
108.220.213.121 and then connect it to the
>     BGW210-700.


what routing/gateway should the srvr use for this test??



The server itself.

I'm suspecting your new device is unable to act as a pass though to other 
routers.


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Re: network mystery!!??

[Jack Craig]

On Sun, Mar 27, 2022 at 12:12 AM Jack Craig 
wrote:

>
>
> On Sun, Mar 27, 2022 at 12:06 AM Ed Greshko 
> wrote:
>
>> On 27/03/2022 15:04, Jack Craig wrote:
>> >
>> >
>> > On Sat, Mar 26, 2022 at 11:53 PM Ed Greshko 
>> wrote:
>> >
>> > On 27/03/2022 14:40, Jack Craig wrote:
>> > > but srvr is on 10.0.0.101, att rtr is between 192.168.1.254 and
>> 108.90.204.76.
>> > >
>> > > still make sense??
>> >
>> > I see
>> >
>> > To test, I want you to make the server a static ip address of
>> 108.220.213.121 and then connect it to the
>> > BGW210-700.
>>
>
what routing/gateway should the srvr use for this test??


> >
>> > It seems the BGW210-700 may not be as capable as the pace 5238ac
>> was.
>> >
>> >
>> > ok, first thing in the morning. I screw everything up that I do after
>> midnight!  :(
>> >
>>
>> The other idea is to connect a device via WiFi and see what IP address
>> gets assigned to it.
>>
>
> well, the 2.4 on the att rtr is dhcp'ing 192.168.1.63 to 192.168.1.253
>
> the netgear is dhcp'in 10.0.0.20 - 10.0.0.99
>
>>
>> --
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Re: network mystery!!??

[Jack Craig]

On Sun, Mar 27, 2022 at 12:06 AM Ed Greshko  wrote:

> On 27/03/2022 15:04, Jack Craig wrote:
> >
> >
> > On Sat, Mar 26, 2022 at 11:53 PM Ed Greshko 
> wrote:
> >
> > On 27/03/2022 14:40, Jack Craig wrote:
> > > but srvr is on 10.0.0.101, att rtr is between 192.168.1.254 and
> 108.90.204.76.
> > >
> > > still make sense??
> >
> > I see
> >
> > To test, I want you to make the server a static ip address of
> 108.220.213.121 and then connect it to the
> > BGW210-700.
> >
> > It seems the BGW210-700 may not be as capable as the pace 5238ac was.
> >
> >
> > ok, first thing in the morning. I screw everything up that I do after
> midnight!  :(
> >
>
> The other idea is to connect a device via WiFi and see what IP address
> gets assigned to it.
>

well, the 2.4 on the att rtr is dhcp'ing 192.168.1.63 to 192.168.1.253

the netgear is dhcp'in 10.0.0.20 - 10.0.0.99

>
> --
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Re: network mystery!!??

[Ed Greshko]

On 27/03/2022 15:04, Jack Craig wrote:



On Sat, Mar 26, 2022 at 11:53 PM Ed Greshko  wrote:

On 27/03/2022 14:40, Jack Craig wrote:
> but srvr is on 10.0.0.101, att rtr is between 192.168.1.254 and 
108.90.204.76.
>
> still make sense??

I see

To test, I want you to make the server a static ip address of 
108.220.213.121 and then connect it to the
BGW210-700.

It seems the BGW210-700 may not be as capable as the pace 5238ac was.


ok, first thing in the morning. I screw everything up that I do after midnight! 
 :(



The other idea is to connect a device via WiFi and see what IP address gets 
assigned to it.

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Re: network mystery!!??

[Jack Craig]

On Sat, Mar 26, 2022 at 11:53 PM Ed Greshko  wrote:

> On 27/03/2022 14:40, Jack Craig wrote:
> > but srvr is on 10.0.0.101, att rtr is between 192.168.1.254 and
> 108.90.204.76.
> >
> > still make sense??
>
> I see
>
> To test, I want you to make the server a static ip address of
> 108.220.213.121 and then connect it to the
> BGW210-700.
>
> It seems the BGW210-700 may not be as capable as the pace 5238ac was.
>

ok, first thing in the morning. I screw everything up that I do after
midnight!  :(


> --
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Re: network mystery!!??

[Ed Greshko]

On 27/03/2022 14:40, Jack Craig wrote:

but srvr is on 10.0.0.101, att rtr is between 192.168.1.254 and 108.90.204.76.

still make sense??


I see

To test, I want you to make the server a static ip address of 108.220.213.121 
and then connect it to the
BGW210-700.

It seems the BGW210-700 may not be as capable as the pace 5238ac was.

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Re: network mystery!!??

[Jack Craig]

On Sat, Mar 26, 2022 at 11:06 PM Ed Greshko  wrote:

> On 27/03/2022 13:57, Jack Craig wrote:
> >
> >
> > On Sat, Mar 26, 2022 at 10:20 PM Ed Greshko 
> wrote:
> >
> > On 27/03/2022 12:19, Jack Craig wrote:
> > > after much wailing and gnashing of teeth, att did send a tech and
> for general internet access its fine.
> > > just not working with my configuration...
> > >
> > > at the moment, trying to find a static route option for att rtr.
> > >
> > > static routes on the internal router wont help, right??
> >
> > I guess I don't really understand what HW and Physical Configuration.
> >
> > You have a DSL router.  The router has 4 Ethernet ports.  In your
> configuration, what are these ports connected to?
> >
> >
> > ok, ...
> >
> > (internet)---lan connect--- nighthawk>--lan connect-[netgear switch]--
> >
> > make sense?
> >
>
> Is your srvr configured manually?  Meaning, a static IP?
>
> If so, try connecting the bgw210700 directly to the srvr.  Then try
> accessing sites from the server.
>

but srvr is on 10.0.0.101, att rtr is between 192.168.1.254 and
108.90.204.76.

still make sense??


>
> --
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Re: network mystery!!??

[Jack Craig]

On Sat, Mar 26, 2022 at 11:14 PM Samuel Sieb  wrote:

> On 3/26/22 22:57, Jack Craig wrote:
> > (internet)---lan connect--- > nighthawk>--lan connect-[netgear switch]--
>
> Now we're getting somewhere.  Can you also assign the following IP
> addresses from your original email into that diagram?
>
> 10.0.0.101ws.linuxlighthouse.com (internal IP) 2 packets
> transmitted, 2 received, 0% packet loss, time 1033ms
> 10.0.0.1   Blackhole-NH
> 2 packets transmitted, 2 received, 0% packet loss, time 1018ms
> 192.168.1.254 Blackhole-ATT2
> packets transmitted, 2 received, 0% packet loss, time 1001ms
> 108.90.204.76 att subnet (local router)2 packets
> transmitted, 2 received, 0% packet loss, time 1002ms
> 108.90.204.1att subnet (remote GW)   2 packets
> transmitted, 2 received, 0% packet loss, time 1001ms
> 108.220.213.121   ws.linuxlighthouse.com (public IP) 2 packets
> transmitted, 2 received, 0% packet loss, time 1001ms
> 108.220.213.126   linuxlighthouse (public GW)  2 packets
> transmitted, 2 received, 0% packet loss, time 1001ms
>
> You wrote:
>
>  > i have a static ip from att in the range
> 108.220.213.0/255.255.255.248, 108.220.213.121 is the external ip for
> the server.
>
> But you list two IP addresses from that subnet.  Did they actually give
> you two addresses?  I can ping the .126 one, but not the .121 one.


.121 was supposed to be exported ip, the 126 they said was gateway...

block of 8, 5 usable...





> 1: lo:  mtu 65536 qdisc noqueue state UNKNOWN group
> default qlen 1000
> link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
> inet 127.0.0.1/8 scope host lo
>valid_lft forever preferred_lft forever
> inet6 ::1/128 scope host
>valid_lft forever preferred_lft forever
>
>
>
>
>
>
> *2: eno1:  mtu 1500 qdisc fq_codel state
> UP group default qlen 1000link/ether 50:65:f3:4a:ec:e5 brd
> ff:ff:ff:ff:ff:ffaltname enp0s31f6inet 10.0.0.101/24
>  brd 10.0.0.255 scope global noprefixroute eno1
>  valid_lft forever preferred_lft foreverinet6
> fe80::2f5c:874d:5113:3d37/64 scope link noprefixroutevalid_lft
> forever preferred_lft forever*
> 3: virbr0:  mtu 1500 qdisc noqueue
> state DOWN group default qlen 1000
> link/ether 52:54:00:06:e4:2a brd ff:ff:ff:ff:ff:ff
> inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
>valid_lft forever preferred_lft forever
>

current srv config, static,



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Re: network mystery!!??

[Samuel Sieb]

On 3/26/22 22:57, Jack Craig wrote:
(internet)---lan connect---nighthawk>--lan connect-[netgear switch]--


Now we're getting somewhere.  Can you also assign the following IP 
addresses from your original email into that diagram?


10.0.0.101ws.linuxlighthouse.com (internal IP) 2 packets 
transmitted, 2 received, 0% packet loss, time 1033ms
10.0.0.1   Blackhole-NH 
2 packets transmitted, 2 received, 0% packet loss, time 1018ms
192.168.1.254 Blackhole-ATT2 
packets transmitted, 2 received, 0% packet loss, time 1001ms
108.90.204.76 att subnet (local router)2 packets 
transmitted, 2 received, 0% packet loss, time 1002ms
108.90.204.1att subnet (remote GW)   2 packets 
transmitted, 2 received, 0% packet loss, time 1001ms
108.220.213.121   ws.linuxlighthouse.com (public IP) 2 packets 
transmitted, 2 received, 0% packet loss, time 1001ms
108.220.213.126   linuxlighthouse (public GW)  2 packets 
transmitted, 2 received, 0% packet loss, time 1001ms


You wrote:

> i have a static ip from att in the range 
108.220.213.0/255.255.255.248, 108.220.213.121 is the external ip for 
the server.


But you list two IP addresses from that subnet.  Did they actually give 
you two addresses?  I can ping the .126 one, but not the .121 one.

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Re: network mystery!!??

[Ed Greshko]

On 27/03/2022 13:57, Jack Craig wrote:



On Sat, Mar 26, 2022 at 10:20 PM Ed Greshko  wrote:

On 27/03/2022 12:19, Jack Craig wrote:
> after much wailing and gnashing of teeth, att did send a tech and for 
general internet access its fine.
> just not working with my configuration...
>
> at the moment, trying to find a static route option for att rtr.
>
> static routes on the internal router wont help, right??

I guess I don't really understand what HW and Physical Configuration.

You have a DSL router.  The router has 4 Ethernet ports.  In your 
configuration, what are these ports connected to?


ok, ...

(internet)---lan connect-lan 
connect-[netgear switch]--

make sense?



Is your srvr configured manually?  Meaning, a static IP?

If so, try connecting the bgw210700 directly to the srvr.  Then try accessing 
sites from the server.

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Re: network mystery!!??

[Jack Craig]

On Sat, Mar 26, 2022 at 10:20 PM Ed Greshko  wrote:

> On 27/03/2022 12:19, Jack Craig wrote:
> > after much wailing and gnashing of teeth, att did send a tech and for
> general internet access its fine.
> > just not working with my configuration...
> >
> > at the moment, trying to find a static route option for att rtr.
> >
> > static routes on the internal router wont help, right??
>
> I guess I don't really understand what HW and Physical Configuration.
>
> You have a DSL router.  The router has 4 Ethernet ports.  In your
> configuration, what are these ports connected to?
>

ok, ...

(internet)---lan connect-lan connect-[netgear switch]--

make sense?


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Re: network mystery!!??

[Ed Greshko]

On 27/03/2022 12:19, Jack Craig wrote:

after much wailing and gnashing of teeth, att did send a tech and for general 
internet access its fine.
just not working with my configuration...

at the moment, trying to find a static route option for att rtr.

static routes on the internal router wont help, right??


I guess I don't really understand what HW and Physical Configuration.

You have a DSL router.  The router has 4 Ethernet ports.  In your 
configuration, what are these ports connected to?

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Re: network mystery!!??

[Jack Craig]

On Sat, Mar 26, 2022 at 8:00 PM Ed Greshko  wrote:

> On 27/03/2022 02:42, Jack Craig wrote:
> >
> >
> > On Sat, Mar 26, 2022 at 1:57 AM Ed Greshko 
> wrote:
> >
> > On 26/03/2022 16:33, Peter Boy wrote:
> > >
> > >> Am 26.03.2022 um 08:55 schrieb Ed Greshko  >:
> > >>
> > >> ws.linuxlighthouse.com  has
> address 108.220.213.121
> > >>
> > >> Now try connecting to http://ws.linuxlighthouse.com/
> > > Not surprisingly, the server is unavailable. After all, this is
> the OP's network mystery.
> > >
> > > Question is, can the OP log in to the server anyway? That would be
> a good start to get the mystery resolved.
> >
> > Yes, that is a qood question.  Can the server be accessed on the
> internal network.
> >
> > Also, I wonder if the OP has rebooted the network equipment.
> >
> >
> > rebooted yes
>
> I suggest you call AT support as they supplied the replacement equipment
> and it should have been configured to
> pass  108.220.213.X traffic.  That appears to be nott the case.
>
> FWIW, It seems the Fedora mailing list was "stuck".  All the mail just
> flooded in on Sunday late morning my time.
>
> after much wailing and gnashing of teeth, att did send a tech and for
general internet access its fine.
just not working with my configuration...

at the moment, trying to find a static route option for att rtr.

static routes on the internal router wont help, right??

> --
> Did 황준호 die?
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Re: network mystery!!??

[Jack Craig]

On Sat, Mar 26, 2022 at 9:08 PM Tim via users 
wrote:

> On Sat, 2022-03-26 at 11:22 -0700, Jack Craig wrote:
> > i had a remote friend try  traceroute to 108.220.213.121 to show the
> > trace stopping at 108.90.204.76.
> >
> > i dont know why it stops short of my server???
>
> Things only respond to pings if allowed to.  Thanks to continual
> hacking attempts, many admins turn off features they don't need, or
> feel that someone else may exploit.
>
> Pings (as things like traceroute generally use) only prove that
> something responds to pings, they don't prove whether HTTP access to a
> webserver works or not.  Likewise for any other service running.
>
> Your ISP may be ignoring pings, many other services in between, and
> even your own router.
>

but why can  i traceroute up to my side of the me<-->isp lan segment??

the att rtr knows of the public ip, why doesnt it get used? the mystery so
far.

>
> --
>
> uname -rsvp
> Linux 3.10.0-1160.59.1.el7.x86_64 #1 SMP Wed Feb 23 16:47:03 UTC 2022
> x86_64
>
> Boilerplate:  All unexpected mail to my mailbox is automatically deleted.
> I will only get to see the messages that are posted to the mailing list.
>
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Re: network mystery!!??

[Jack Craig]

On Sat, Mar 26, 2022 at 5:27 PM Richard <
inbound-lists-fed...@listmail.innovate.net> wrote:

>
>
> > Date: Saturday, March 26, 2022 11:42:57 -0700
> > From: Jack Craig 
> >
> > On Sat, Mar 26, 2022 at 1:57 AM Ed Greshko 
> > wrote:
> >
> >> On 26/03/2022 16:33, Peter Boy wrote:
> >> >
> >> >> Am 26.03.2022 um 08:55 schrieb Ed Greshko
> >> >> :
> >> >>
> >> >> ws.linuxlighthouse.com has address 108.220.213.121
> >> >>
> >> >> Now try connecting to http://ws.linuxlighthouse.com/
> >> > Not surprisingly, the server is unavailable. After all, this is
> >> > the OP's
> >> network mystery.
> >> >
> >> > Question is, can the OP log in to the server anyway? That would
> >> > be a
> >> good start to get the mystery resolved.
> >>
> >> Yes, that is a qood question.  Can the server be accessed on the
> >> internal network.
> >>
> >> Also, I wonder if the OP has rebooted the network equipment.
> >>
> >
> > rebooted yes
> >
>
> I assume you had address mapping (external to internal) and
> port-forwarding set up on the old router? Are they set up on the new
> router too?
>

port forwarding is enabled on my 3rd party router, not the att rtr, as it
was before


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Re: network mystery!!??

[Tim via users]

On Sat, 2022-03-26 at 11:22 -0700, Jack Craig wrote:
> i had a remote friend try  traceroute to 108.220.213.121 to show the
> trace stopping at 108.90.204.76.
> 
> i dont know why it stops short of my server???

Things only respond to pings if allowed to.  Thanks to continual
hacking attempts, many admins turn off features they don't need, or
feel that someone else may exploit.

Pings (as things like traceroute generally use) only prove that
something responds to pings, they don't prove whether HTTP access to a
webserver works or not.  Likewise for any other service running.

Your ISP may be ignoring pings, many other services in between, and
even your own router.

-- 
 
uname -rsvp
Linux 3.10.0-1160.59.1.el7.x86_64 #1 SMP Wed Feb 23 16:47:03 UTC 2022 x86_64
 
Boilerplate:  All unexpected mail to my mailbox is automatically deleted.
I will only get to see the messages that are posted to the mailing list.
 
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Re: network mystery!!??

[Ed Greshko]

On 27/03/2022 02:42, Jack Craig wrote:



On Sat, Mar 26, 2022 at 1:57 AM Ed Greshko  wrote:

On 26/03/2022 16:33, Peter Boy wrote:
>
>> Am 26.03.2022 um 08:55 schrieb Ed Greshko :
>>
>> ws.linuxlighthouse.com  has address 
108.220.213.121
>>
>> Now try connecting to http://ws.linuxlighthouse.com/
> Not surprisingly, the server is unavailable. After all, this is the OP's 
network mystery.
>
> Question is, can the OP log in to the server anyway? That would be a good 
start to get the mystery resolved.

Yes, that is a qood question.  Can the server be accessed on the internal 
network.

Also, I wonder if the OP has rebooted the network equipment.


rebooted yes


I suggest you call AT support as they supplied the replacement equipment and 
it should have been configured to
pass  108.220.213.X traffic.  That appears to be nott the case.

FWIW, It seems the Fedora mailing list was "stuck".  All the mail just flooded 
in on Sunday late morning my time.

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Re: network mystery!!??

[Richard]

> Date: Saturday, March 26, 2022 11:42:57 -0700
> From: Jack Craig 
>
> On Sat, Mar 26, 2022 at 1:57 AM Ed Greshko 
> wrote:
> 
>> On 26/03/2022 16:33, Peter Boy wrote:
>> > 
>> >> Am 26.03.2022 um 08:55 schrieb Ed Greshko
>> >> :
>> >> 
>> >> ws.linuxlighthouse.com has address 108.220.213.121
>> >> 
>> >> Now try connecting to http://ws.linuxlighthouse.com/
>> > Not surprisingly, the server is unavailable. After all, this is
>> > the OP's
>> network mystery.
>> > 
>> > Question is, can the OP log in to the server anyway? That would
>> > be a
>> good start to get the mystery resolved.
>> 
>> Yes, that is a qood question.  Can the server be accessed on the
>> internal network.
>> 
>> Also, I wonder if the OP has rebooted the network equipment.
>> 
> 
> rebooted yes
> 

I assume you had address mapping (external to internal) and
port-forwarding set up on the old router? Are they set up on the new
router too?
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Re: network mystery!!??

[Jack Craig]

On Sat, Mar 26, 2022 at 1:57 AM Ed Greshko  wrote:

> On 26/03/2022 16:33, Peter Boy wrote:
> >
> >> Am 26.03.2022 um 08:55 schrieb Ed Greshko :
> >>
> >> ws.linuxlighthouse.com has address 108.220.213.121
> >>
> >> Now try connecting to http://ws.linuxlighthouse.com/
> > Not surprisingly, the server is unavailable. After all, this is the OP's
> network mystery.
> >
> > Question is, can the OP log in to the server anyway? That would be a
> good start to get the mystery resolved.
>
> Yes, that is a qood question.  Can the server be accessed on the internal
> network.
>
> Also, I wonder if the OP has rebooted the network equipment.
>

rebooted yes


>
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Re: network mystery!!??

[Jack Craig]

On Sat, Mar 26, 2022 at 1:34 AM Peter Boy  wrote:

>
>
> > Am 26.03.2022 um 08:55 schrieb Ed Greshko :
> >
> > ws.linuxlighthouse.com has address 108.220.213.121
> >
> > Now try connecting to http://ws.linuxlighthouse.com/
>
> Not surprisingly, the server is unavailable. After all, this is the OP's
> network mystery.
>
> Question is, can the OP log in to the server anyway? That would be a good
> start to get the mystery resolved.
>

yes, all local access work. dropping the firewall doesnt make a difference
either.


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Re: network mystery!!??

[Jack Craig]

On Sat, Mar 26, 2022 at 12:56 AM Ed Greshko  wrote:

> On 26/03/2022 14:24, Cameron Simpson wrote:
> > So what you see below is normal. Don't sweat it. Here's an example from
> > where I'm sitting to a host on a TPG network:
> >
>
> Maybe he should be "sweating it".  He has a web server with a public IP
> address.
>
> [egreshko@meimei ~]$ host ws.linuxlighthouse.com
> ws.linuxlighthouse.com has address 108.220.213.121
>
> Now try connecting to http://ws.linuxlighthouse.com/


i have had http & https working for my local access, but its remote access
of the same that i am having issues ith...

also, i have domains, linuxlighthouse.com , www.linuxlighthouse.com &
ws.linuxlighthouse.com

>
>
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Re: network mystery!!??

[Jack Craig]

On Fri, Mar 25, 2022 at 11:25 PM Cameron Simpson  wrote:

> I normally don't top post, but there nothing I can meaningfully trim
> from your excellent detailed description. So I'm leaving it below.
>
> To your traceroute, route tracing (IIRC) depends on setting a max hop
> count on the outbound packets. When the hop count is exceeded, you get
> back an ICMP error packet indicating that the count was exceeded from
> the router which decremented the counter to 0.
>
> So to trace a route you send a packet with a max hop count of 1, and get
> a packet back from your router, and that tells you the router IP. Then
> you send one with a max hop count of 2 and get an error packet back from
> the next router upstream, telling you its IP address. And so on.
>
> Plenty of network routers do not respond to pings and do not return
> these error packets - they just drop the packet on the floor. These just
> show up as gaps in the traceroute, because traceroute does not receive
> the ICMP response from the routers at that hop count.
>
> So what you see below is normal. Don't sweat it. Here's an example from
> where I'm sitting to a host on a TPG network:
>
> traceroute to  (14.203.40.46), 64 hops max, 52 byte
> packets
>  1  cskk-3g (10.0.0.138)  2.220 ms  1.824 ms  1.716 ms
>  2  * * *
>  3  10.4.37.50 (10.4.37.50)  31.144 ms  26.018 ms  55.897 ms
>  4  10.5.86.65 (10.5.86.65)  33.860 ms  34.792 ms  36.855 ms
>  5  10.5.86.72 (10.5.86.72)  49.968 ms  41.517 ms  30.999 ms
>  6  203.50.63.96 (203.50.63.96)  35.888 ms  34.900 ms  26.032 ms
>  7  bundle-ether26.chw-core10.sydney.telstra.net (203.50.61.96)
> 27.825
> ms  31.547 ms  31.129 ms
>  8  bundle-ether1.chw-edge903.sydney.telstra.net (203.50.11.177)
> 28.825
> ms  32.709 ms  35.956 ms
>  9  aap3461251.lnk.telstra.net (110.145.180.218)  30.886 ms  25.857
> ms
> 29.599 ms
> 10  syd-sot-ken-wgw1-be-30.tpgi.com.au (203.219.107.193)  29.719 ms
> 28.821 ms  28.611 ms
> 11  203-221-3-109.tpgi.com.au (203.221.3.109)  33.221 ms  31.921 ms
> 203-221-3-45.tpgi.com.au (203.221.3.45)  40.022 ms
> 12  * * *
> 13  * * *
> 14  * * *
> 15  * * *
>
> Cheers,
> Cameron Simpson 
>
> On 25Mar2022 19:29, Jack Craig  wrote:
> >i have a networking mystery ; i hope someone might give me a clue.
> >
> >i am working to restore a web server to internet access that is failing
> >after att update
> >the att older modem (pace 5238ac) with arris BGW210-700.
> >
> >i have a static ip from att in the range 108.220.213.0/255.255.255.248,
> >108.220.213.121 is the external ip for the server.
> >
> >the bgw210-700 is the primary router/modem and is connected to a 3rd party
> >router, netgear nighthawk,
> >
> >the internal 10.0.0.0/  connects to the netgear nighthawk
> >
> >ATT's broadband configuration is
> >
> > Blackhole-ATT (wireless name)
> >
> >   Broadband connection source  DSL
> >   Broadband connection up
> >   Broadband network type   lightspeed
> >   Broadband ipv4 address   108.90.204.76
> >   Broadband gateway address108.90.204.1
> >
> >outbound packets from the server (WS), are routed from the 10.0.0.1
> >nighthawk to the ATT router to the internet.
> >
> >the 108.90.204.0 network routing from the att router to the att's gateway.
> >.76 is the router, .1 is the GW.
> >
> >sample route, ...
> >
> >10.0.0.101ws.linuxlighthouse.com (internal IP) 2 packets
> >transmitted, 2 received, 0% packet loss, time 1033ms
> >10.0.0.1   Blackhole-NH 2
> >packets transmitted, 2 received, 0% packet loss, time 1018ms
> >192.168.1.254 Blackhole-ATT2
> >packets transmitted, 2 received, 0% packet loss, time 1001ms
> >108.90.204.76 att subnet (local router)2 packets
> >transmitted, 2 received, 0% packet loss, time 1002ms
> >108.90.204.1att subnet (remote GW)   2 packets
> >transmitted, 2 received, 0% packet loss, time 1001ms
> >108.220.213.121   ws.linuxlighthouse.com (public IP) 2 packets
> transmitted,
> >2 received, 0% packet loss, time 1001ms
> >108.220.213.126   linuxlighthouse (public GW)  2 packets
> >transmitted, 2 received, 0% packet loss, time 1001ms
> >
> >now the  mystery. where 108.220.213.121 is a publicly visible ip for the
> >server, a remote traceroute is wonky!!
> >
> >consider the below traceroute, it reports hops up to 108.90.204.76,
> >stopping there instead of doing one more hop
> >
> >
> >  1<1 ms<1 ms<1 ms  Linksys35675 [192.168.1.1]
> >  2 9 ms 8 ms17 ms  142-254-236-209.inf.spectrum.com
> >[142.254.236.209]
> >  312 ms10 ms11 ms  lag-63.tjngcaac01h.netops.charter.com
> >[24.30.172.49]
> >  414 ms13 ms13 ms  lag-29.lsaicaev01r.netops.charter.com
> >[72.129.18.240]
> >  512 ms14 ms11 ms  lag-26.lsancarc01r.netops.charter.com
> 

Re: network mystery!!??

[Jack Craig]

On Fri, Mar 25, 2022 at 8:25 PM Ed Greshko  wrote:

> On 26/03/2022 10:29, Jack Craig wrote:
> >
> >
> >
> > i have a networking mystery ; i hope someone might give me a clue.
> >
> > i am working to restore a web server to internet access that is failing
> after att update
> > the att older modem (pace 5238ac) with arris BGW210-700.
> >
> > i have a static ip from att in the range 108.220.213.0/255.255.255.248 <
> http://108.220.213.0/255.255.255.248>, 108.220.213.121 is the external ip
> for the server.
> >
> > the bgw210-700 is the primary router/modem and is connected to a 3rd
> party router, netgear nighthawk,
> >
> > the internal 10.0.0.0/   connects to the netgear
> nighthawk
> >
> > ATT's broadband configuration is
> >
> >  Blackhole-ATT (wireless name)
> >
> >Broadband connection source  DSL
> >Broadband connection up
> >Broadband network type   lightspeed
> >Broadband ipv4 address   108.90.204.76
> >Broadband gateway address108.90.204.1
> >
> >
> > outbound packets from the server (WS), are routed from the 10.0.0.1
> nighthawk to the ATT router to the internet.
> >
> > the 108.90.204.0 network routing from the att router to the att's
> gateway. .76 is the router, .1 is the GW.
> >
> > sample route, ...
> >
> > 10.0.0.101 ws.linuxlighthouse.com 
> (internal IP) 2 packets transmitted, 2 received, 0% packet loss, time 1033ms
> > 10.0.0.1   Blackhole-NH   2 packets
> transmitted, 2 received, 0% packet loss, time 1018ms
> > 192.168.1.254 Blackhole-ATT  2 packets transmitted,
> 2 received, 0% packet loss, time 1001ms
> > 108.90.204.76 att subnet (local router)  2 packets
> transmitted, 2 received, 0% packet loss, time 1002ms
> > 108.90.204.1att subnet (remote GW)   2 packets
> transmitted, 2 received, 0% packet loss, time 1001ms
> > 108.220.213.121 ws.linuxlighthouse.com 
> (public IP) 2 packets transmitted, 2 received, 0% packet loss, time 1001ms
> > 108.220.213.126   linuxlighthouse (public GW)  2 packets
> transmitted, 2 received, 0% packet loss, time 1001ms
> >
> Sounds like 108.90.204.76 is missing routes. I'm assuming that
> 108.220.213.121 previously answered pings
> and originally was the final destination of an external traceroute.
>

i was not seeing a way to add att rtr to have new  routes.

>
> [egreshko@meimei ~]$ traceroute 108.220.213.121
> traceroute to 108.220.213.121 (108.220.213.121), 30 hops max, 60 byte
> packets
>   1  _gateway (192.168.1.1)  0.434 ms  0.728 ms  0.681 ms
>   2  * * *
>   3  tpdt-3308.hinet.net (168.95.82.198)  23.574 ms  23.530 ms 23.451 ms
>   4  tpdb-3031.hinet.net (220.128.1.102)  7.827 ms
> 220-128-1-50.hinet-ip.hinet.net (220.128.1.50)  7.210 ms
> tpdt-3032.hinet.net (220.128.27.94)  7.386 ms
>   5  r4102-s2.tp.hinet.net (220.128.7.69)  7.123 ms r4102-s2.tp.hinet.net
> (220.128.14.93)  7.296 ms r4102-s2.tp.hinet.net (220.128.13.93)  7.252 ms
>   6  r4002-s2.tp.hinet.net (220.128.6.85)  7.538 ms r4002-s2.tp.hinet.net
> (220.128.6.81)  6.710 ms  6.656 ms
>   7  pa-r32.us.hinet.net (202.39.91.29)  133.962 ms  132.083 ms 132.075 ms
>   8  32.141.85.13 (32.141.85.13)  133.458 ms  133.358 ms  133.297 ms
>   9  12.123.242.38 (12.123.242.38)  138.066 ms  137.303 ms  139.959 ms
> 10  12.122.149.225 (12.122.149.225)  143.022 ms  137.567 ms  137.573 ms
> 11  12.122.158.25 (12.122.158.25)  138.446 ms  137.435 ms  138.346 ms
> 12  * * *
> 13  99.134.39.24 (99.134.39.24)  136.686 ms  136.506 ms *
> 14  99.134.39.11 (99.134.39.11)  136.191 ms  136.211 ms  136.066 ms
> 15  99.161.44.77 (99.161.44.77)  137.461 ms  137.438 ms  138.025 ms
> 16  108-90-204-76.lightspeed.mtryca.sbcglobal.net (108.90.204.76) 157.627
> ms  157.580 ms  157.980 ms
> 17  * * *
> 18  * * *
> 19  * * *
> 20  * * *
> 21  * * *
> 22  * * *
> 23  * * *
> 24  * * *
> 25  * * *
> 26  * * *
> 27  * * *
> 28  * * *
> 29  * * *
> 30  * * *
>
> Remember if a server that should be visible externally, but isn't. Then
> outbound requests/replies will also fail.
>
my server is pingable at 10.0.0.101 & 108.220.213.121.

this with & without firewalld

>
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Re: network mystery!!??

[Jack Craig]

On Fri, Mar 25, 2022 at 8:16 PM Samuel Sieb  wrote:

> On 3/25/22 19:29, Jack Craig wrote:
> > i have a networking mystery ; i hope someone might give me a clue.
> >
> > sample route, ...
> >
> > 10.0.0.101 ws.linuxlighthouse.com 
> > (internal IP) 2 packets transmitted, 2 received, 0% packet loss, time
> 1033ms
> > 10.0.0.1   Blackhole-NH
> > 2 packets transmitted, 2 received, 0% packet loss, time 1018ms
> > 192.168.1.254 Blackhole-ATT2
> > packets transmitted, 2 received, 0% packet loss, time 1001ms
> > 108.90.204.76 att subnet (local router)2 packets
> > transmitted, 2 received, 0% packet loss, time 1002ms
> > 108.90.204.1att subnet (remote GW)   2 packets
> > transmitted, 2 received, 0% packet loss, time 1001ms
> > 108.220.213.121 ws.linuxlighthouse.com 
> > (public IP) 2 packets transmitted, 2 received, 0% packet loss, time
> 1001ms
> > 108.220.213.126   linuxlighthouse (public GW)  2 packets
> > transmitted, 2 received, 0% packet loss, time 1001ms
> >
> > now the  mystery. where 108.220.213.121 is a publicly visible ip for the
> > server, a remote traceroute is wonky!!
> >
> > consider the below traceroute, it reports hops up to 108.90.204.76,
> > stopping there instead of doing one more hop
> >
> >
> >1<1 ms<1 ms<1 ms  Linksys35675 [192.168.1.1]
> >2 9 ms 8 ms17 ms 142-254-236-209.inf.spectrum.com
> >  [142.254.236.209]
> >312 ms10 ms11 ms lag-63.tjngcaac01h.netops.charter.com
> [snip]
> >   1544 ms43 ms43 ms
> > 108-90-204-76.lightspeed.mtryca.sbcglobal.net
> >  [108.90.204.76]
> >   16 *** Request timed out.
> >   17 *** Request timed out.
> >   18 *** Request timed out.
> >   19
> >
> > could anyone shed some light on this mystery??
>
> Your question and description are very confusing.  Can you try again
> with the details more organized?
> What are you trying to traceroute to at the end?  The route in the
> traceroute doesn't match the "route" from earlier.  I don't understand
> what you think should be after that last hop.
> ISPs don't always let traceroute requests go through depending on which
> method you're using.
>

i had a remote friend try  traceroute to 108.220.213.121 to show the trace
stopping at 108.90.204.76.

i dont know why it stops short of my server???

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Re: network mystery!!??

[Ed Greshko]

On 26/03/2022 16:33, Peter Boy wrote:



Am 26.03.2022 um 08:55 schrieb Ed Greshko :

ws.linuxlighthouse.com has address 108.220.213.121

Now try connecting to http://ws.linuxlighthouse.com/

Not surprisingly, the server is unavailable. After all, this is the OP's 
network mystery.

Question is, can the OP log in to the server anyway? That would be a good start 
to get the mystery resolved.


Yes, that is a qood question.  Can the server be accessed on the internal 
network.

Also, I wonder if the OP has rebooted the network equipment.

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Re: network mystery!!??

[Peter Boy]

> Am 26.03.2022 um 08:55 schrieb Ed Greshko :
> 
> ws.linuxlighthouse.com has address 108.220.213.121
> 
> Now try connecting to http://ws.linuxlighthouse.com/

Not surprisingly, the server is unavailable. After all, this is the OP's 
network mystery.

Question is, can the OP log in to the server anyway? That would be a good start 
to get the mystery resolved.
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Re: network mystery!!??

[Ed Greshko]

On 26/03/2022 14:24, Cameron Simpson wrote:

So what you see below is normal. Don't sweat it. Here's an example from
where I'm sitting to a host on a TPG network:



Maybe he should be "sweating it".  He has a web server with a public IP address.

[egreshko@meimei ~]$ host ws.linuxlighthouse.com
ws.linuxlighthouse.com has address 108.220.213.121

Now try connecting to http://ws.linuxlighthouse.com/

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Re: network mystery!!??

[Cameron Simpson]

I normally don't top post, but there nothing I can meaningfully trim 
from your excellent detailed description. So I'm leaving it below.

To your traceroute, route tracing (IIRC) depends on setting a max hop 
count on the outbound packets. When the hop count is exceeded, you get 
back an ICMP error packet indicating that the count was exceeded from 
the router which decremented the counter to 0.

So to trace a route you send a packet with a max hop count of 1, and get 
a packet back from your router, and that tells you the router IP. Then 
you send one with a max hop count of 2 and get an error packet back from 
the next router upstream, telling you its IP address. And so on.

Plenty of network routers do not respond to pings and do not return 
these error packets - they just drop the packet on the floor. These just 
show up as gaps in the traceroute, because traceroute does not receive 
the ICMP response from the routers at that hop count.

So what you see below is normal. Don't sweat it. Here's an example from 
where I'm sitting to a host on a TPG network:

traceroute to  (14.203.40.46), 64 hops max, 52 byte 
packets
 1  cskk-3g (10.0.0.138)  2.220 ms  1.824 ms  1.716 ms
 2  * * *
 3  10.4.37.50 (10.4.37.50)  31.144 ms  26.018 ms  55.897 ms
 4  10.5.86.65 (10.5.86.65)  33.860 ms  34.792 ms  36.855 ms
 5  10.5.86.72 (10.5.86.72)  49.968 ms  41.517 ms  30.999 ms
 6  203.50.63.96 (203.50.63.96)  35.888 ms  34.900 ms  26.032 ms
 7  bundle-ether26.chw-core10.sydney.telstra.net (203.50.61.96)  27.825 
ms  31.547 ms  31.129 ms
 8  bundle-ether1.chw-edge903.sydney.telstra.net (203.50.11.177)  28.825 
ms  32.709 ms  35.956 ms
 9  aap3461251.lnk.telstra.net (110.145.180.218)  30.886 ms  25.857 ms  
29.599 ms
10  syd-sot-ken-wgw1-be-30.tpgi.com.au (203.219.107.193)  29.719 ms  
28.821 ms  28.611 ms
11  203-221-3-109.tpgi.com.au (203.221.3.109)  33.221 ms  31.921 ms
203-221-3-45.tpgi.com.au (203.221.3.45)  40.022 ms
12  * * *
13  * * *
14  * * *
15  * * *

Cheers,
Cameron Simpson 

On 25Mar2022 19:29, Jack Craig  wrote:
>i have a networking mystery ; i hope someone might give me a clue.
>
>i am working to restore a web server to internet access that is failing
>after att update
>the att older modem (pace 5238ac) with arris BGW210-700.
>
>i have a static ip from att in the range 108.220.213.0/255.255.255.248,
>108.220.213.121 is the external ip for the server.
>
>the bgw210-700 is the primary router/modem and is connected to a 3rd party
>router, netgear nighthawk,
>
>the internal 10.0.0.0/  connects to the netgear nighthawk
>
>ATT's broadband configuration is
>
> Blackhole-ATT (wireless name)
>
>   Broadband connection source  DSL
>   Broadband connection up
>   Broadband network type   lightspeed
>   Broadband ipv4 address   108.90.204.76
>   Broadband gateway address108.90.204.1
>
>outbound packets from the server (WS), are routed from the 10.0.0.1
>nighthawk to the ATT router to the internet.
>
>the 108.90.204.0 network routing from the att router to the att's gateway.
>.76 is the router, .1 is the GW.
>
>sample route, ...
>
>10.0.0.101ws.linuxlighthouse.com (internal IP) 2 packets
>transmitted, 2 received, 0% packet loss, time 1033ms
>10.0.0.1   Blackhole-NH 2
>packets transmitted, 2 received, 0% packet loss, time 1018ms
>192.168.1.254 Blackhole-ATT2
>packets transmitted, 2 received, 0% packet loss, time 1001ms
>108.90.204.76 att subnet (local router)2 packets
>transmitted, 2 received, 0% packet loss, time 1002ms
>108.90.204.1att subnet (remote GW)   2 packets
>transmitted, 2 received, 0% packet loss, time 1001ms
>108.220.213.121   ws.linuxlighthouse.com (public IP) 2 packets transmitted,
>2 received, 0% packet loss, time 1001ms
>108.220.213.126   linuxlighthouse (public GW)  2 packets
>transmitted, 2 received, 0% packet loss, time 1001ms
>
>now the  mystery. where 108.220.213.121 is a publicly visible ip for the
>server, a remote traceroute is wonky!!
>
>consider the below traceroute, it reports hops up to 108.90.204.76,
>stopping there instead of doing one more hop
>
>
>  1<1 ms<1 ms<1 ms  Linksys35675 [192.168.1.1]
>  2 9 ms 8 ms17 ms  142-254-236-209.inf.spectrum.com
>[142.254.236.209]
>  312 ms10 ms11 ms  lag-63.tjngcaac01h.netops.charter.com
>[24.30.172.49]
>  414 ms13 ms13 ms  lag-29.lsaicaev01r.netops.charter.com
>[72.129.18.240]
>  512 ms14 ms11 ms  lag-26.lsancarc01r.netops.charter.com
>[72.129.17.0]
>  619 ms13 ms14 ms  lag-16.lsancarc0yw-bcr00.netops.charter.com
>[66.109.6.102]
>  725 ms37 ms42 ms  lag-3.pr2.lax10.netops.charter.com
>[107.14.19.41]
>  817 ms17 ms17 ms  192.205.32.253
>  922 ms21 ms21 ms  

Re: network mystery!!??

[Ed Greshko]

On 26/03/2022 10:29, Jack Craig wrote:




i have a networking mystery ; i hope someone might give me a clue.

i am working to restore a web server to internet access that is failing after 
att update
the att older modem (pace 5238ac) with arris BGW210-700.

i have a static ip from att in the range 108.220.213.0/255.255.255.248 
, 108.220.213.121 is the external ip for 
the server.

the bgw210-700 is the primary router/modem and is connected to a 3rd party 
router, netgear nighthawk,

the internal 10.0.0.0/   connects to the netgear nighthawk

ATT's broadband configuration is

 Blackhole-ATT (wireless name)

   Broadband connection source      DSL
   Broadband connection             up
   Broadband network type           lightspeed
   Broadband ipv4 address           108.90.204.76
   Broadband gateway address        108.90.204.1


outbound packets from the server (WS), are routed from the 10.0.0.1 nighthawk 
to the ATT router to the internet.

the 108.90.204.0 network routing from the att router to the att's gateway. .76 
is the router, .1 is the GW.

sample route, ...

10.0.0.101 ws.linuxlighthouse.com  (internal IP) 
2 packets transmitted, 2 received, 0% packet loss, time 1033ms
10.0.0.1           Blackhole-NH           2 packets 
transmitted, 2 received, 0% packet loss, time 1018ms
192.168.1.254     Blackhole-ATT      2 packets transmitted, 2 
received, 0% packet loss, time 1001ms
108.90.204.76     att subnet (local router)  2 packets transmitted, 2 
received, 0% packet loss, time 1002ms
108.90.204.1        att subnet (remote GW)               2 packets 
transmitted, 2 received, 0% packet loss, time 1001ms
108.220.213.121 ws.linuxlighthouse.com  (public 
IP) 2 packets transmitted, 2 received, 0% packet loss, time 1001ms
108.220.213.126   linuxlighthouse (public GW)          2 packets transmitted, 2 
received, 0% packet loss, time 1001ms


Sounds like 108.90.204.76 is missing routes. I'm assuming that 108.220.213.121 
previously answered pings
and originally was the final destination of an external traceroute.

[egreshko@meimei ~]$ traceroute 108.220.213.121
traceroute to 108.220.213.121 (108.220.213.121), 30 hops max, 60 byte packets
 1  _gateway (192.168.1.1)  0.434 ms  0.728 ms  0.681 ms
 2  * * *
 3  tpdt-3308.hinet.net (168.95.82.198)  23.574 ms  23.530 ms 23.451 ms
 4  tpdb-3031.hinet.net (220.128.1.102)  7.827 ms 
220-128-1-50.hinet-ip.hinet.net (220.128.1.50)  7.210 ms tpdt-3032.hinet.net 
(220.128.27.94)  7.386 ms
 5  r4102-s2.tp.hinet.net (220.128.7.69)  7.123 ms r4102-s2.tp.hinet.net 
(220.128.14.93)  7.296 ms r4102-s2.tp.hinet.net (220.128.13.93)  7.252 ms
 6  r4002-s2.tp.hinet.net (220.128.6.85)  7.538 ms r4002-s2.tp.hinet.net 
(220.128.6.81)  6.710 ms  6.656 ms
 7  pa-r32.us.hinet.net (202.39.91.29)  133.962 ms  132.083 ms 132.075 ms
 8  32.141.85.13 (32.141.85.13)  133.458 ms  133.358 ms  133.297 ms
 9  12.123.242.38 (12.123.242.38)  138.066 ms  137.303 ms  139.959 ms
10  12.122.149.225 (12.122.149.225)  143.022 ms  137.567 ms  137.573 ms
11  12.122.158.25 (12.122.158.25)  138.446 ms  137.435 ms  138.346 ms
12  * * *
13  99.134.39.24 (99.134.39.24)  136.686 ms  136.506 ms *
14  99.134.39.11 (99.134.39.11)  136.191 ms  136.211 ms  136.066 ms
15  99.161.44.77 (99.161.44.77)  137.461 ms  137.438 ms  138.025 ms
16  108-90-204-76.lightspeed.mtryca.sbcglobal.net (108.90.204.76) 157.627 ms  
157.580 ms  157.980 ms
17  * * *
18  * * *
19  * * *
20  * * *
21  * * *
22  * * *
23  * * *
24  * * *
25  * * *
26  * * *
27  * * *
28  * * *
29  * * *
30  * * *

Remember if a server that should be visible externally, but isn't. Then 
outbound requests/replies will also fail.

--
Did 황준호 die?
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Re: network mystery!!??

[Samuel Sieb]

On 3/25/22 19:29, Jack Craig wrote:

i have a networking mystery ; i hope someone might give me a clue.

sample route, ...

10.0.0.101 ws.linuxlighthouse.com  
(internal IP) 2 packets transmitted, 2 received, 0% packet loss, time 1033ms
10.0.0.1           Blackhole-NH 
2 packets transmitted, 2 received, 0% packet loss, time 1018ms
192.168.1.254     Blackhole-ATT                        2 
packets transmitted, 2 received, 0% packet loss, time 1001ms
108.90.204.76     att subnet (local router)            2 packets 
transmitted, 2 received, 0% packet loss, time 1002ms
108.90.204.1        att subnet (remote GW)               2 packets 
transmitted, 2 received, 0% packet loss, time 1001ms
108.220.213.121 ws.linuxlighthouse.com  
(public IP) 2 packets transmitted, 2 received, 0% packet loss, time 1001ms
108.220.213.126   linuxlighthouse (public GW)          2 packets 
transmitted, 2 received, 0% packet loss, time 1001ms


now the  mystery. where 108.220.213.121 is a publicly visible ip for the 
server, a remote traceroute is wonky!!


consider the below traceroute, it reports hops up to 108.90.204.76, 
stopping there instead of doing one more hop



   1    <1 ms    <1 ms    <1 ms  Linksys35675 [192.168.1.1]
   2     9 ms     8 ms    17 ms 142-254-236-209.inf.spectrum.com 
 [142.254.236.209]
   3    12 ms    10 ms    11 ms lag-63.tjngcaac01h.netops.charter.com 

[snip]
  15    44 ms    43 ms    43 ms 
108-90-204-76.lightspeed.mtryca.sbcglobal.net 
 [108.90.204.76]

  16     *        *        *     Request timed out.
  17     *        *        *     Request timed out.
  18     *        *        *     Request timed out.
  19

could anyone shed some light on this mystery??


Your question and description are very confusing.  Can you try again 
with the details more organized?
What are you trying to traceroute to at the end?  The route in the 
traceroute doesn't match the "route" from earlier.  I don't understand 
what you think should be after that last hop.
ISPs don't always let traceroute requests go through depending on which 
method you're using.

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