North American Network Operators Group
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Re: IPv6: IS-IS or OSPFv3

  • From: Joe Malcolm
  • Date: Sat Dec 27 16:24:35 2008 
Steven M. Bellovin writes:
>Unless, of course, someone one hop away -- a peer?  a customer?  an
>upstream or downstream? someone on the same LAN at certain exchange
>points? -- sends you a CLNP packet at link level...

True enough, and mistakenly enabling ISIS on external ports has been
known to happen though in the absence of malice it usually causes no
problems. If it does cause problems, generally the source can be more
easily localized given that it has to be L2-adjacent to one of your
routers.

Joe