[69360] in North American Network Operators' Group
Re: BGP TTL check in 12.3(7)T
daemon@ATHENA.MIT.EDU (David Meyer)
Thu Apr 8 11:07:44 2004
Date: Thu, 8 Apr 2004 08:07:01 -0700
From: David Meyer <dmm@1-4-5.net>
To: vijay gill <vgill@vijaygill.com>
Cc: Hank Nussbacher <hank@att.net.il>, nanog@merit.edu
In-Reply-To: <20040408144129.GA31258@vijaygill.com>
Errors-To: owner-nanog-outgoing@merit.edu
>> The TTL mechanism is just a way to distinguish at low cost between
>> good for_us traffic and junk. So more of a classifer than a security
>> layer, though it can be argued both ways. And even though it
>> does have security in the title, it is _not_ a panacea for "securing"
>> bgp or any routing information.
>>
>> http://www.faqs.org/rfcs/rfc3682.html
Just to second what Vijay said here, what GTSM does is
close the window a bit; it doesn't shut it.
Dave
