nanog mailing list archives

Re: TCP RST attack (the cause of all that MD5-o-rama)


From: Simon Lockhart <simon.lockhart () bbc co uk>
Date: Tue, 20 Apr 2004 20:00:33 +0100


On Tue Apr 20, 2004 at 02:54:16PM -0400, James wrote:
now the question is... would this also affect single-hop bgp sessions?
my understanding would be no, as single-hops require ttl set to 1.

All it requires is for the TTL to be 1 (or 0, I can't remember which)
when it's received. Just launch your packets with a TTL of the number of
hops between you and the victim, and that's that bit sorted...

Simon


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