16 Sep
2019
16 Sep
'19
5:13 p.m.
https://archive.nanog.org/meetings/nanog40/presentations/BGPcommunities.pdf
Don’t let anyone send you Informational tags, these should only be set by
you, and you should strip them from all BGP neighbors (customers, transits, peers, etc). Otherwise you have a massive security problem.
I often see informational tags propagated through multiple ASes. What is the security risk there?