[c-nsp] ttl-security issues

Gert Doering gert at greenie.muc.de
Wed Jun 27 13:40:45 EDT 2012


Hi,

On Wed, Jun 27, 2012 at 05:54:34AM -0400, Charles Sprickman wrote:
> I enabled this on one and about a minute later the bgp session dropped.  

This needs to be enabled on both sides.  Default is "send bgp packets
with a TTL of 1" and with ttl-security enabled, your side will *drop*
everything that has a TTL below 254 (and send its own packets with 255).

gert
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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de
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