[outages] COX ICMP Filter

[Robert D. Scott]

ICMP traceroute works over my Cox peer in Florida. Ping to a Cox destination
also works.

C:\Documents and Settings\robert>tracert www.savethewhales.net
Tracing route to www.savethewhales.net [64.14.244.60]

<snip>
  6     1 ms     1 ms     1 ms  ip70-169-186-21.ga.at.cox.net
[70.169.186.21]
  7     1 ms     1 ms     1 ms  24.136.46.66
  8    11 ms    11 ms    11 ms  dukedsrj01-so100.tc.at.cox.net [68.1.15.73]
  9    27 ms    27 ms    27 ms  ashbbbrj01-as0.r2.as.cox.net [68.1.1.223]
 10    34 ms    34 ms    34 ms  cr2-tengig0-7-3-0.washington.savvis.net
[204.70.197.246]
<snip>

C:\Documents and Settings\robert>ping  www.savethewhales.net

Pinging www.savethewhales.net [64.14.244.60] with 32 bytes of data:

Reply from 64.14.244.60: bytes=32 time=86ms TTL=234
Reply from 64.14.244.60: bytes=32 time=85ms TTL=234
Reply from 64.14.244.60: bytes=32 time=85ms TTL=234
Reply from 64.14.244.60: bytes=32 time=85ms TTL=234

Ping statistics for 64.14.244.60:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 85ms, Maximum = 86ms, Average = 85ms

Robert D. Scott                 Robert at ufl.edu
Senior Network Engineer         352-273-0113 Phone
CNS - Network Services          352-392-2061 CNS Receptionist
University of Florida           352-392-9440 FAX
Florida Lambda Rail             352-294-3571 FLR NOC
Gainesville, FL  32611          321-663-0421 Cell


-----Original Message-----
From: outages-bounces at outages.org [mailto:outages-bounces at outages.org] On
Behalf Of Jeremy Chadwick
Sent: Tuesday, September 02, 2008 11:04 PM
To: Ryan Werber
Cc: outages at outages.org
Subject: Re: [outages] COX ICMP Filter

On Tue, Sep 02, 2008 at 04:11:11PM -0400, Ryan Werber wrote:
> For those of you with COX or a COX Peer, it seems as though COX has shut
> off ICMP transiting their networks.  I do not have a time yet when this
> will be fixed.

Has anyone confirmed if this affects all ICMP, or just specific ICMP
types (e.g. echoreq/echorep)?

If they're blocking all ICMP, someone at Cox needs to be fired
immediately.

-- 
| Jeremy Chadwick                                jdc at parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.              PGP: 4BD6C0CB |

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