I'm guessing a routing loop and a bunch of red lights in their NOC.
I'm sure they are working on it.
I never understand why people post traceroute on NANOG and expect
things to magically get fixed. Did you call Cogent?
On Apr 25, 2007, at 3:55 PM, David Coulson wrote:
About 20mins
Seriously though- why do we keep blaming the infrastructure for the
mind boggling stupidity of users?
There will always be users that don't understand technology. You
call them stupid, I call them mom & dad, brother & sister. If you
maintain the attitude that it is the 'stupid' users f
Hello,
I am currently hosted in a small, independent
datacenter that has 4 or 5 public peers (L3, Sprint,
UUnet, AT&T and ... ?)
They are most likely giving you a single feed to their core which has
4-5 upstream connections to transit providers. Not peers really, Im
sure they are pay
On Jan 31, 2007, at 5:57 PM, Paul Vixie wrote:
bear with me, this appears to be about DNS but it's actually about
e-mail.
maps.vix.com has been gone since 1999 or so. mail-abuse.org is the
new thing.
i've tried just about everything to get traffic toward the old
domain name to
stop..
I have had similar issues with AT&T in NY. They have peering issues
with MCI killing random access to random websites, (www.netflix.com,
www.netbank.com). I trouble shot it with AT&T a couple week ago and
they killed a bad link. It fixed my problem. Last I knew the link
was still dow
Maybe the new slogan needs to be "Save the Internet! Train the
chimps!"
Shouldnt 'ip verify unicast source reachable-by rx' be a default
setting on all interfaces? Only to be removed by trained chimps?
-Matt
--
Matthew S. Crocker
Vice President
Crocker Communications, Inc.
Internet Div
Does your peer or you have any ACLs on the PtP link which may be
dropping the packets? If your peer is doing uRPF and doesn't have
your route properly installed it can cause problems on their edge.
Are the sites you cannot reach akamaized? I've had issues with some
akamaized sites when
I wonder just how much power it takes to cool 450,000 servers.
450,000 servers * 100 Watts/Server = 45,000,000 watts / 3.413 watts/
BTU = 13.1 Million BTU / 12000 BTU/Ton = 1100 Tons of cooling
A 30 Ton Liebert system runs about 80 amps @ 480 volts or 38400
watts, you'll need at least 40
Although dialup modem pools are a dying breed they are still very
much in use around the country. It appears that after many years of
legal battles Verizon has decided to terminate all connections to
GlobalNAPs in Massachusetts. As you may or may not know, GlobalNAPs
handles a lot o
On Mar 8, 2006, at 9:35 AM, Daniel Golding wrote:
One way to look at this is that you are getting a very low price
per mbps
with Cogent. Therefore, when Cogent's CEO decides its in his best
interest
to partition for a week over a depeering situation, their
customer's role is
to suck it up
Windows 98 price (in 1997) -> $209
Office 97 Standard (in 1997) -> $689
Windows XP price (now) -> $199.
Office 2003 (now) -> $399.
Verizon Retail 768k DSL, $14.95/month (includes everything)
Verizon Wholesale 768k DSL, $13.95/month + DS3 ATM + IP + support + e-
mail
Verizon CLEC 2W DSL Con
That is the exact problem with a [mon|du]opoly. The
incumbents drive
the price so low (because they own the network) that
it drives out an
potential competition.
So you're complaining that the problem with lack of
competition is that the prices are too LOW? As a
consumer, I'm thrilled with l
Technically, lots of other providers CAN enter the
market - it's just very expensive to do so. If there
are customers who are not receiving service from one
of the incumbent providers, a third party is certainly
welcome to {dig a trench | build wireless towers | buy
lots of well-trained pigeons
Philip,
Go to a looking glass site and see what the 'internet' knows about
your network. You can look for your netblocks and see if their are
in BGP tables of routers around the globe
http://www.bgp4.as/looking-glasses
-Matt
On Oct 11, 2005, at 10:37 AM, Philip Lavine wrote:
I am
Level 3 claims Cogent is sending far more traffic than Level3 to
Cogent.
Thus, Level3's viewpoint is that Cogent relies on them more than
they rely
on Cogent. Thus, it no longer makes sense in their view point to
maintain
a free interconnection as there is no similar balance of traffic
On Oct 5, 2005, at 2:47 PM, Douglas Dever wrote:
On 10/5/05, Matthew Crocker <[EMAIL PROTECTED]> wrote:
They did, and I'm not down. I see Level 3 via Sprint and GNAPs/CENT
just fine. I didn't lose any connectivity to Level 3 at all. Bits
moving down different pipes, n
So perhaps the question you should be asking is: Why didn't routes
for
these networks fall over to the other upstream peers which *are*
capable of
moving the packets? Surely MCI, AT&T, Sprint, and others would
carry the
packets to the right place. I can see the paths right here
T
I opened a billing/support ticket with Cogent. I'm not planning
on paying my bill or continuing the contract if they cannot
provide full BGP tables and full Internet transport (barring
outages). Luckily I have 2 other providers so I can still reach
Level 3.
I'm curious where in yo
l offering
-- please see our status page at http://status.cogentco.com
-Matt
On Oct 5, 2005, at 11:57 AM, Simon Lockhart wrote:
On Wed Oct 05, 2005 at 11:50:52AM -0400, Matthew Crocker wrote:
I opened a billing/support ticket with Cogent. I'm not planning on
paying my bill or
I opened a billing/support ticket with Cogent. I'm not planning on
paying my bill or continuing the contract if they cannot provide full
BGP tables and full Internet transport (barring outages). Luckily I
have 2 other providers so I can still reach Level 3.
Maybe I can buy the new '
I just tested it from a Verizon DSL host and it worked.
You might want to consider reading RFC 2182 though, particularly the
part about geographically diverse nameservers.
Yeah, yeah, that is overrated. If my site goes dark and my DNS goes
down it doesn't really matter as the bandwidth a
I'm hoping someone on the list can help confirm that I'm not going
insane.
I have a customer with the domain 'mtrsd.k12.ma.us' The domain
should be handled by our DNS servers (dns-auth1.crocker.com & dns-
auth2.crocker.com)
The customer has an A record for www.mtrsd.k12.ma.us pointin
At your borders (upstream/peers), you will naturally block all of
10/8
at egress.
my border is very broad and it's not feasible to use acls on all
equipment
that makes up that edge :( (for the sake of arguement, which is now
far
afield from the original question: "Feasible path won't
On May 12, 2005, at 4:23 PM, Jeff Rosowski wrote:
| So imagine a residential area all pulling digital video over
wireless.
| Sound familiar? Ironically close to TV! (yet so different)
You mean like VoIP over dsl ?
I'm looking to setup DSL over VoIP over DSL next.
I'm going for v.90 over VoIP
SONET Circuit Service OC3-c (155Mbps) $2200 vs. Central Office Node
Circuit Service OC3/3c (155Mbps) $675
SONET is a method of transporting TDM channels over fiber. SONET is
made up of building blocks calls a STS. A STS is equivalent to a DS-3
+ SONET Wrapper. An OC-3 equals 3 STSes. OC-3s co
On Mar 3, 2005, at 7:22 PM, James wrote:
You certainly need their permission before you can advertise routes
that
falsely came to have passed through their network!
What kind of specific _technical_ issue do I create by prepending
another ASN
on AS_PATHs I advertise, without such "owner"'s perm
Forwarded mail shouldn't be rejected as a result of SPF if your mail
server is using SRS to rewrite the from addresses in the "mail from"
part of the SMTP transaction of the forwarded emails... as long as
your SPF record isn't messed up of course. :)
I know but that just wreaks of a hack which
Due to AOL scomp and SPF we have stopped forwarding all together.
Existing accounts are grandfathered and we are working on migrating
them all to IMAP-SSL. ALL new accounts have to IMAP their mail from
our servers. I get WAY too much junk from forwarded mail going to
AOL. I also get way t
I can see where it may come to a LEC being able to block a
competitor's port
only if they offer a comparable service. It will be an interesting
ride to
be sure.
What if a LEC added QoS to increase priority of their own VoIP product
and reduced QoS on their competitors? Packets are still gettin
I'm a Sprint customer going on 10 years now. I have always had good
luck e-mailing their BGP4 admin address. Check out the website but I
think it is [EMAIL PROTECTED] They normally respond in an hour or
less. I'm sure if you e-mail the BGP group they will add the new AS to
your as-path fil
On Sep 20, 2004, at 7:54 PM, Dan Mahoney, System Admin wrote:
On Mon, 20 Sep 2004, Majdi Abbas wrote:
I'll bite, and reveal my ultimate cluelessness here.
Assuming I wanted to go about setting up an NNTP server, how would I
go about getting and maintaining the feeds? There's no "central"
author
So back to the question at hand... to get netflow stats for outgoing
traffic.. we need cards in the 12K router which will support netflow
on the ingress ports of the router for outgoing traffic(ie Gigabit
Ethernet Line Cards)... right?
Correct, NetFlow is generated when the packet enters the r
Chris,
Take a look at Cisco OER
http://www.cisco.com/en/US/netsol/ns471/
networking_solutions_package.html or Route Science
http://www.routescience.com/technology/index.html. You could also
continue doing what you are doing, The 12k supports BGP, Netflow, SNMP
and some custom scripts
I have had my mail rejected by AOL in the past. I found their error
messages very descriptive and the AOL mail team very responsive. The
problem was on my end and I found and fixed it. Have you gone to the
AOL mail website yet? Go to http://postmaster.aol.com/ it pretty
much tells you ho
My Series 400 seems to be doing fine today. Average queue latency 4
seconds which is about normal.
Do you have any special config settings?
-Matt
On Jul 27, 2004, at 7:21 PM, Joe Hamelin wrote:
I just talked to Heather (sales) at Barracuda and was told that there
would be a FIRMWARE release in
\Get in contact with manufacturing vender for a fix,
and then tell us what they did or what they intend
to do to remedy the problem.
We have already suggested this to the local VoIP provider.
Steinar Haug, Nethelp consulting, [EMAIL PROTECTED]
I guess the real question is why was the local VoIP pr
I know Brad Councilman, This all happened in my back yard. He ran a
competing ISP with me (www.valinet.com). Not only was he reading his
customers e-mail and harvesting Amazon.com orders he also hacked into
4 of the local area ISPs. I still remember the day I received a call
from the FBI
On Jun 29, 2004, at 12:02 PM, Brad Passwaters wrote:
On Tue, 29 Jun 2004 11:45:40 -0400, Matthew Crocker
<[EMAIL PROTECTED]> wrote:
The TRO is irrelevant, The courts made the wrong decision, did
anyone
actually think they would have a clue?
Here is the solution:
Perhaps before propo
The TRO is irrelevant, The courts made the wrong decision, did anyone
actually think they would have a clue?
Here is the solution:
Black ball the /24 that the customer is taking with them. Black hole
any AS that announces that /24 'illegally'. The courts don't need to
follow the RFC or eve
Anyone out there running 12.3(8)T with OER in a production/semi
production environment? I know it is only v1.0 just wondering what
people are seeing.
-Matt
Hello,
I just experienced my first official DDoS attack against my network.
I never realized how helpless I was :(. I had roughly 70 mbps of
traffic aimed at one IP. The IP wasn't even in use, I'm assuming
someone typed the wrong IP and meant to send it somewhere else. I shut
it down by
It would be great if there always was a negligent party, but there is
not always one. If Widgets Inc.'s otherwise ultra-secure web server
gets
0wn3d by a 0-day, there is no negligence[0]. Who eats it, Widgets Inc.
or the ISP?
Widget Inc is still negligent. It is their server. They could have
Hello,
I have been looking through the archives and RFC and I can't seem to
find what I'm looking for. I'm in search of an Element Management
System or Inventory tracking system that can keep track of my hardware
(routers, switches, SONET, patch panels) and ports (DS-1, DS-3, CDS-3,
Etherne
The PSTN doesn't offer guaranteed end-to-end transmission, and
certainly statmuxes based on expected load. Looks like similar
capacity planning.
The PSTN does guarantee a certain service level, latency, call
completion etc.
Perhaps you refer to latency. Most people don't care as long as
HTTP a
On May 18, 2004, at 4:13 AM, Martin Hepworth wrote:
Matthew
Spamassassin needs quite a bit of tweaking above the out of the box
setup. I run about 7000 messages a day here, 70% spam, .5% virus
(clamav and Sophos), very very rarely a FP. I get bove 99% hit rate
after adding in bayes, serveral ad
On May 17, 2004, at 2:35 PM, Claydon, Tom wrote:
Doing evaluations on anti-spam, anti-virus solutions, and ran across
this:
http://www.barracudanetworks.com/
Looks like a good box -- even won an Editor's Choice award from Network
Computing recently.
Does anyone on list have any experience with the
Its not manufacturers who did not caught up (in fact they did and offer
very inexpensive personal dsl routers goes all the way to $20 range),
its
DSL providers who still offer free dsl modem (device at least twice
more
expensive then router) and free network card and complex and
instructions
on
On May 5, 2004, at 5:13 AM, Paul Jakma wrote:
On Tue, 4 May 2004, chuck goolsbee wrote:
So maybe they WOULD be better with a "WebTV" model.
Or a Macintosh.
or a cheap Lidel or WalMart PC with Fedora 1 on it. Epiphany,
Evolution and OpenOffice would keep vast majority of the basic
computer users ha
next thing to protect is customer ebgp sessions. some providers don't
even
route the p2p /30 links used between cust and their backbone (i.e.
Sprint).
so that's up to you.
some backbones even filter all traffic destined to backbone prefixes at
ingress points (border routers, cust edge routers).
On Apr 8, 2004, at 5:05 PM, Deepak Jain wrote:
I have seen boxes from MRV and others that will do 2GE into an OC48. I
really feel bad about "wasting" that 500mb/s on essentially an IP
application, but can't really justify putting OC48 ports into a
catalyst 6500 of this application.
Likewis
If you rate-limit 2 million compromised machines to 20 msgs/day each,
there's only 400 million spams. Total.
IF you can rate-limit them across the whole Internet, If you limit 2
million machines to 20 msgs/day per mail server you are back up to your
10 Billion msgs/day mark. This is where DC
On Apr 5, 2004, at 10:49 AM, Andy Johnson wrote:
Has anyone had any experience with this device? Turntide.com. Looks
like a
traffic-shaping device designed specifically for cutting down spammers
throughput to your inbound SMTP servers. My main concern is, how does
it
make the distinction betwe
Yesterday we witnessed a large scale failure that has yet to be
attributed to configuration, software, or hardware; however one need
look no further than the 168.0.0.0/6 thread, or the GBLX customer who
leaked several tens of thousands of their peers' routes to GBLX shortly
This should be rewritte
Is it that sharing fate in the switching fabric (as
opposed to say, in the transport fabric, or even
conduit) reduces the resiliency of a given service (in
this case FR/ATM/TDM), and as such poses the "danger"
you describe?
Sharing fate in the physical
I'm saying that if a network had a FR/ATM/TDM failure in the past
it would be limited to just the FR/ATM/TDM network. (well, aside from
any IP circuits that are riding that FR/ATM/TDM network). We're now
seeing
the change from the TDM based network being the underlying network to
the
"IP/MPLS
Hmmm ... ftp://ftp.ripe.net/ripe/stats/delegated-ripencc-latest exists
and ftp://ftp.lacnic.net/pub/stats/lacnic/delegated-lacnic-latest as
well ...
Yep, my bad, I was only using ftp.arin.net to pull the data for all 4
RIRs. ARIN doesn't have the symlinks for ripe & lacnic latest files.
I
On 10.02.2004 01:43 Matthew Crocker wrote:
I've look at IANA but it doesn't give enough detailed information. I
would like to find a list of /8 or /16s and what geographic region
the exist in. I know it isn't an exact science but something close
would be nice. I know 210/8 &a
I've look at IANA but it doesn't give enough detailed information. I
would like to find a list of /8 or /16s and what geographic region the
exist in. I know it isn't an exact science but something close would
be nice. I know 210/8 & 211/8 are APNIC, I likes to know stuff like
210.100/16 is K
On Feb 2, 2004, at 6:20 PM, Jonas Frey (Probe Networks) wrote:
This is quite often used. You cant (d)DoS the routers this way, nor try
to do any harm to them as you cant reach them.
Sure you can, easy, attack a router 1 hop past your real target and
spoof your target as the source. The resul
Search the archives, Comcast and other cable/DSL providers use the
10/8 for their infrastructure. The Internet itself doesn't need to be
Internet routable. Only the edges need to be routable. It is common
practice to use RFC1918 address space inside the network. Companies
like Sprint and V
www.carrieraccess.com makes PON CPE gear.
http://www.carrieraccess.com/products/index.cfm/fuseaction/
default_prod/cat_id/118.htm
www.alcatel.com makes PON 'head end' gear that works with CAC CPE.
Basically, 1 strand of fiber (not a pair) can be used for 16 or 32
customers and will hand
On Dec 3, 2003, at 10:42 AM, Christopher X. Candreva wrote:
On Wed, 3 Dec 2003, Randy Bush wrote:
you're right. it will be. people will have to clean up their
in-addr.arpa. or am i missing some reason they can't, other
than laziness?
See, this is the war I didn't want to start again. Unless I'
On Monday, September 15, 2003, at 07:11 PM, George William Herbert
wrote:
A wildcard A record in the net TLD.
It's Verisign's return shot at the web browser "couldn't find this
page"
searches. Doesn't seem to have much by way of advertising yet, but
I'm
sure that'll change. I heard about
Dear List,
I know this isn't the correct forum and for that I apologize. I have
been searching Ciscos website for the past 5 hours with no luck. I
need to know how I can gain access to a Cisco ONS 15454 with TCC+
running 2.2.1 software rev. If anyone knows how to accomplish this
please
As I'v said many times (so have a few others, more now than before) you
have to define the 'edge' first... My definition is: "as close to the
end
system as possible". For instance the LAN segment seems like the ideal
place, its where there is the most CPU per packet, with the most simple
routing
You seem to be misunderstanding the issue. Let's say you work at
someplace.edu. You want to send mail from home. With the SPF-type
schemes
being discussed, your mail MUST come from someplace.edu's server.
If someplace.edu won't set up an SMTP AUTH relay, what do you do? Your
dialup account will
You switch service provider or give them a whack with the cluebat.
And if the "service provider" is your employer/educational
institution? You
quit your job? Drop out of school? Swallow your pride and suffer with
webmail?
Spend $19.95 getting a dialup account for an ISP with a clue and use
thei
I travel around. I read my email by POP3/IMAP, I use local ISP's SMTP
server for outgoing - surely that means I can't use my own domain for
email?
Your ISP should support SMTP_AUTH with TLS for you. You would continue
to use their mail servers no matter where you are or how you are
connected to
Shouldn't customers that purchase IP services from an ISP use the ISPs
mail server as a smart host for outbound mail?
Shouldn't. There are privacy implications of having mail to be recorded
(even temporarily) at someone's disk drive.
If your ISP violates your privacy or has a privacy policy you do
On Thursday, August 28, 2003, at 12:25 PM, [EMAIL PROTECTED]
wrote:
On Thu, 28 Aug 2003 12:00:29 EDT, Matthew Crocker said:
How does this sound for a new mail distribution network.
Only a few problem here:
1) Bootstrapping it - as long as you need to accept legacy SMTP because
less than 90
This brings up a more general point about the dangers of blocking
everything under the sun. When you limit yourself to just a few
chokepoints, its easier for those who would stifle communications
to shut things down.
This is a very dangerous path to take. Not that we shouldn't consider
some sort o
On Thursday, August 28, 2003, at 11:31 AM, Petri Helenius wrote:
Matthew Crocker wrote:
SMTP & DNS should be run through the servers provided by the ISP for
the exact purpose. There is no valid reason for a dialup customer to
go direct to root-servers.net and there is no reason why a di
On Thursday, August 28, 2003, at 11:07 AM, Joel Jaeggli wrote:
On Thu, 28 Aug 2003, Matthew Crocker wrote:
Shouldn't customers that purchase IP services from an ISP use the ISPs
mail server as a smart host for outbound mail?
applying that standard just how large do you have to get befor
In article <[EMAIL PROTECTED]>, Richard Cox
<[EMAIL PROTECTED]> writes
We can thank the usual suspects - Cogent, Qwest, AT&T, Comcast - and
in
Europe: BT, NTL and possibly the world-abuse-leader, Deutsche Telekom
(who run dtag.de and t-dialin.net) for this being the situation.
Here's another tale
On Wednesday, August 27, 2003, at 11:10 PM, Edward Murphy wrote:
Is anyone having this problem on a unit with the mad-2 cards?
We are not experiencing the reboots/lock ups on our APX 8000.
We are using the Ethernet card with the dongle. E-100-V I think.
We are using the Channelized DS-3 card
On Wednesday, August 27, 2003, at 12:46 PM, Ejay Hire wrote:
Here is a summary of our experiences with the bug.
Last Thursday, A TNTs with years of uptime rebooted. No cause was
apparent, and nothing relevant happened in the logs. On Friday, It
happened to a different TNT. This occurred with
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