It also depends on how your ISP is assigning IP addresses My Cable provider
only assigned IP's to registered MAC addresses. In this case you can either
register you E1 mac address with them, or you can spoof a registered mac
address.
Below is a snipet of one of my routers spoofing a MAC address
Try
interface ethernet 1
ip address negotiated
I've seen some configuration like this before and believe it is when the
other side is running a DHCP server.
Kind regards,
Janó
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=71732&t=71667
UPDATE!!!
I was able to get an IP on my 806 off my linksys, thru DHCP after I removed
the "ip verify unicast reverse-path" command , but still unable to get one
from my ISP thru my cable modem, even though I can get one on my linksys and
direct to my PC off the same modem, kinda weird, maybe Cisco
UPDATE!!!
I was able to get an IP on my 806 off my linksys, thru DHCP after I removed
the "ip verify unicast reverse-path" command , but still unable to get one
from my ISP thru my cable modem, even though I can get one on my linksys and
direct to my PC off the same modem, kinda weird, maybe Cisco
Hi,
I have started a home lab and have a Cisco 806 router with IOS 12.2 IP F/W
Plus installed on it. I am trying to set up the 806 to be my gateway between
my home network and my cable modem. I have set up nat and have that working
properly, and I have tried RIP v2 running between the 806 and Link
To all,
Use the "show route" command to see if you received the default route. One
configuration mistake that you might have made with the "ip address" command
is omitting the optional "setroute" parameter at the end. This parameter
accepts and uses the default route received from the ISP. The com
I have a PIX 506 and would like to use it for my home office. My ISP
assigns dynamic IP to me. I can see my PIX 506 got the IP address but I
can't ping anywhere. I don't know if it gets default gateway. How do I
verify? Thanks. Yoshi
Message Posted at:
http://www.groupstudy.com/form/read.php?f=
: RE: 4006 IP Phone DHCP problem [7:56049]
Larry,
Don't mind me, I'm not challenging the configs, just trying to learn -
sometimes Cisco's website can be very unclear to me ;-)
I forgot to ask - How are those Avaya phones working out compared to Cisco
phones?
- Jennifer
et]
Sent: Wednesday, October 23, 2002 10:45 PM
To: [EMAIL PROTECTED]
Subject: RE: 4006 IP Phone DHCP problem [7:56049]
Larry,
I noticed you have the command "switchport trunk encapsulation dot1q".
Do you need to configure the interface/port as a trunk when you do the "set
port au
Larry,
Don't mind me, I'm not challenging the configs, just trying to learn -
sometimes Cisco's website can be very unclear to me ;-)
I forgot to ask - How are those Avaya phones working out compared to Cisco
phones?
- Jennifer
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=5
Larry,
I noticed you have the command "switchport trunk encapsulation dot1q".
Do you need to configure the interface/port as a trunk when you do the "set
port auxiliaryvlan" command (catos) or the "switch voice vlan" command (ios
switch)? According to Cisco's website, you don't for a catos switc
Damn phones,
Don't they make you feel stupid sometimes. Great work Larry.
jb
-Original Message-
From: Roberts, Larry [mailto:Larry.Roberts@;expanets.com]
Sent: Wednesday, October 23, 2002 10:57 AM
To: John Brandis
Subject: RE: 4006 IP Phone DHCP problem [7:56049]
The Fix was to
Hey folks, Im hoping that one of you can help me with a problem.
I have a 4006 with a SUPIII running 2 VLAN's. The Data VLAN is VLAN 1 and
the Voice VLAN is VLAN 200.
I have a DHCP server on VLAN 1 with the proper scopes defined.
My problem is that the phone is getting a VLAN 1 ip address, not a V
Road [mailto:[EMAIL PROTECTED]]
Sent: 01 October 2002 22:23
To: [EMAIL PROTECTED]
Subject: Problem Solved: WAS Re: OT: Serves Me Right - DHCP problem
[7:54661]
fortunately, smarter people than I took the troubleshooting.
The problem was this:
The Network Admin decided to use a DHCP super s
_
>
> Priscilla Oppenheimer
> www.troubleshootingnetworks.com
> www.priscilla.com
> >
> >
> > Thanks!
> > TJ
> >
> >
> > -Original Message-
> > From: Larry Letterman [mailto:[EMAIL PROTECTED]]
> &
TED]]
> Sent: Tuesday, October 01, 2002 2:55 PM
> To: [EMAIL PROTECTED]
> Subject: RE: OT: Serves Me Right - DHCP problem [7:54402]
>
>
> Evans, TJ wrote:
> >
> > IIRC:
> > Win2k and later detect 'cable disconnects', and de-IP your
> > syste
g message that comes up and
confuses users.
___
Priscilla Oppenheimer
www.troubleshootingnetworks.com
www.priscilla.com
>
>
> Thanks!
> TJ
>
>
> -Original Message-
> From: Larry Letterman [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, October 0
enabled) you at that time.
-Original Message-
From: Evans, TJ [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, October 01, 2002 1:49 PM
To: [EMAIL PROTECTED]
Subject: RE: OT: Serves Me Right - DHCP problem [7:54402]
Strangely, they also detect 'cable reconnects' and attempt to re-IP (via
DHCP, or
ct: Re: OT: Serves Me Right - DHCP problem [7:54402]
Nothing to fess up to, Chuck..My w2K works the same way at home..
connect, get a number..disconnect and reconnect , get a different number..
Linksys routers are pretty simple devices...I have two of them currently
and
both give out dhcp on differe
Nothing to fess up to, Chuck..My w2K works the same way at home..
connect, get a number..disconnect and reconnect , get a different number..
Linksys routers are pretty simple devices...I have two of them currently
and
both give out dhcp on different subnets...I can get an address from
either one
""Kevin Wigle"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
>
> W2K/XP does that automatically. If you have the icon turned on in the
> system tray for the nic, you will see when the cable is unplugged and when
> it is plugged in again. (you don't need it turned on to work)
>
>
- Original Message -
From: "Larry Letterman"
To:
Sent: Sunday, September 29, 2002 10:41 PM
Subject: RE: OT: Serves Me Right - DHCP problem [7:54402]
> well...when I unplug from my building and re-plug in next door
> my win2K laptop re-acquires a new network ip from the ne
-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Sunday, September 29, 2002 1:01 PM
To: [EMAIL PROTECTED]
Subject: Re: OT: Serves Me Right - DHCP problem [7:54402]
Darrell Newcomb wrote:
>
> Because pre-W2K windows didn't automatically try to renew a
> lease when the
> e
well S*** Larry, thanks for providing that vital piece of troubleshooting
relevant information!
I still say you are using Mobile IP.
fess up ;->
Chuck
--
www.chuckslongroad.info
like my web site?
take the survey!
""Larry Letterman"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTE
thats why we put in wireless in all our buildings..moving around is no
problem...
Priscilla Oppenheimer wrote:
>Darrell Newcomb wrote:
>
>>Because pre-W2K windows didn't automatically try to renew a
>>lease when the
>>ethernet interface comes back up after being down. So...if the
>>old lease
>
Darrell Newcomb wrote:
>
> Because pre-W2K windows didn't automatically try to renew a
> lease when the
> ethernet interface comes back up after being down. So...if the
> old lease
> hadn't come up for renewal during the time the machine moved
> from point A to
> B.the users don't automatica
Chuck,
Have you tried to shorten the DHCP lease time?
--- Larry Letterman wrote:
> why is that ? we have segmented avvid network across
> our campus. The
> laptops are all W2K and they work just
> fine without any issues on DHCP...The routers are
> all running hsrp and
> work correctly..
>
>
Because pre-W2K windows didn't automatically try to renew a lease when the
ethernet interface comes back up after being down. So...if the old lease
hadn't come up for renewal during the time the machine moved from point A to
B.the users don't automatically get connectivity.
Lots of options t
why is that ? we have segmented avvid network across our campus. The
laptops are all W2K and they work just
fine without any issues on DHCP...The routers are all running hsrp and
work correctly..
Chuck's Long Road wrote:
>I see I should have made this one a "Friday Folly" :->
>
>In a Big Flat
To: [EMAIL PROTECTED]
Subject: Re: OT: Serves Me Right - DHCP problem [7:54402]
Your customer would probably be gravely offended and unbelieving at the
prospect that most major changes in digital computing connectivity
involve a
trade-off of some kind, but that doesn't render it any less
as possible,
forcing an appeal to the economic considerations that motivated the project
in order to squelch the dissensiion.
- Original Message -
From: "Chuck's Long Road"
To:
Sent: 28 September 2002 1:28 pm
Subject: Re: OT: Serves Me Right - DHCP problem [7:54402]
> I
mobile IP!!! Thanks, Cil
I'll throw that one out to the folks I'm working with!
--
www.chuckslongroad.info
like my web site?
take the survey!
""Priscilla Oppenheimer"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> You could try Mobile IP. That would require more desig
You could try Mobile IP. That would require more design and configuration on
your part than perhaps you wanted to get into, though, espeically if there
are lots of mobile users. But it's proven to be quite useful for wirless
mobile users who have the same problem that you're describing, of course.
I see I should have made this one a "Friday Folly" :->
In a Big Flat Bridged Network, a mobile user unplugs the laptop at one
office, drives over to the next office, plugs back in, and no further action
is required. The Windoze PC has retained it's IP address, and the network
doesn't care about l
IP Helpering? lol
Have you thrown a sniffer on the different segments yet? Sniff both sides
of the router and check out your packets. Got any ACL's on the routers?
thanks,
-Brad Ellis
CCIE#5796 (R&S / Security)
Network Learning Inc
[EMAIL PROTECTED]
www.optsys.net (Cisco hardware)
""Chuck's
Spare us the mystery and tell us what you're getting at. :-) Did you forget
to tell the DHCP server to provide the correct default gateway address to
the PCs? That's my guess, since you say everything else like helper
addresses, etc. is configured correctly. Just a late-night theory, waiting
for
The AVVID solution I sold a few months ago is gong through implementation.
This project has been problematic for a lot of reasons, so it is not unusual
for a round of e-mails from the customer complaining about one thing or
another.
Today was a good one, however. Shows to go you have to ask thing
ss, the IP address
of the DHCP server and the lease time.
- Original Message -
From: "Phil Lorenz"
To:
Sent: Saturday, June 22, 2002 7:56 PM
Subject: RE: Cable Modem DHCP problem [7:47175]
> When dealing with this type of circuit, think of your cable modem as the
> UNI int
your regain the same IP address, even though you're granted
a brand new lease.
All the best !!!
Phil
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
McHugh Randy
Sent: Friday, June 21, 2002 11:56 PM
To: [EMAIL PROTECTED]
Subject: Cable Modem DHCP
config t
int e0 (whichever is connected to cable modem)
mac-address ..
> I usally just change my mac-address and it will get a new ip
> and then you
> can change it back
> after that.
> Rick
>
>
> ""McHugh Randy"" wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> >
I usally just change my mac-address and it will get a new ip and then you
can change it back
after that.
Rick
""McHugh Randy"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Does anyone know how to release a DHCP lease on a 2514 eth interface? I
> would like to release the leas
f Of
McHugh Randy
Sent: Friday, June 21, 2002 10:56 PM
To: [EMAIL PROTECTED]
Subject: Cable Modem DHCP problem [7:47175]
Does anyone know how to release a DHCP lease on a 2514 eth interface? I
would like to release the lease recieved from the cable modem (comcast)
. I
have tried powercycling the
Does anyone know how to release a DHCP lease on a 2514 eth interface? I
would like to release the lease recieved from the cable modem (comcast) . I
have tried powercycling the modem, router, reload, shuting the interface ect
and nothing works. I get the same lease all the time and cant get out to
;Tuline, Andrew"
stems.com>cc:
Sent by: Subject: Ethernet switches and
DHCP problem
Here's a Microsoft article that discussed how DHCP can have problems with
the Spanning Tree.
http://support.microsoft.com/support/kb/articles/q168/4/55.asp?LN=EN-US&SD=g
n&FR=0
My understanding from this article is that when a port goes active (due to
powerup of a PC), that it will cause the Spa
I'm having an interesting DHCP problem that I would like to hear if anyone
has encountered before.
I have a 3640 with IP/IPX/Plus 12.0.7T feature set on. I need to use the T
track because I have a Fast ethernet channelized T1 module. A Novell 4.2
DHCP server is on this side.
I have a 1750
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