nanog mailing list archives

Re: syn attack and source routing


From: "Brett D. Watson" <bwatson () genuity net>
Date: Wed, 18 Sep 1996 10:46:22 -0700

  read my message again, john.  i said i don't like the prospect of
removing lsrr.  i use it.  i hate running across backbones that have
it disabled.

  i wasn't campaigning to remove it.  i was asking how dangerous it
could be because i honestly didn't know.  i didn't mean to alarm
anyone or imply that i would be turning off lsrr. :)

-brett

From:    John Hawkinson <jhawk () bbnplanet com>
Subject: Re: syn attack and source routing

Return-Path: <jhawk () bbnplanet com>
In-Reply-To: <199609181640.JAA01450 () batcave genuity net> from "Brett D. Watson"
     *** at Sep 18, 96 09:40:02 am
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  i should have been more specific.  i don't like the idea (at all) of
breaking traceroute -g either.  i guess in a more general sense i
should ask "just how dangerous *is* having backbone-wide/internet-wide
loose source routing enabled?".

As Curtis explained, "not very".

Worst case, those folks feeling victimized can (and do!) simply shut
it off.

This is a very different case from that of SYN flooding, where the
victims are powerless to stop it.

Please don't take our LSRR away from us, it is very useful.
Campaigning to remove something just because you suspect it might be
bad is really not nice -- it will result in random clueless people
believeing you when perchance they should not :-)

--jhawk

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