[61911] in North American Network Operators' Group
Networks dropping all ICMP
daemon@ATHENA.MIT.EDU (Andrew Staples)
Tue Sep 9 11:50:15 2003
From: "Andrew Staples" <andrews@ltinet.net>
To: <nanog@merit.edu>
Date: Tue, 9 Sep 2003 08:47:21 -0700
Errors-To: owner-nanog-outgoing@merit.edu
A certain network last week decided to drop *all* icmp traffic across =
its
network for an indefinate period of time. They did this to reduce the
effects of Nachi. Apparently (their) Redback DSL concentrators cannot
filter only 92 byte packets, it's all or none.
Does anyone else care to respond publicly or privately with data about =
other
networks filtering all icmp traffic, not just malformed icmp? I'd like =
to
compile a list for troubleshooting, as these decisions are breaking =
things
for some customers.
Andrew Staples
perl -e
"print(pack('H54','616e647265772e737461706c6573406e776e6574636f6d2e636f6d=
'))
;"
"I don't think I'm alone when I say I'd like to see more and more =
planets
fall=20
under the ruthless domination of our solar system."
