Re: IPv6: IS-IS or OSPFv3

["Steven M. Bellovin" <smb () cs columbia edu>]

On Fri, 26 Dec 2008 20:37:41 -0800
"Kevin Oberman" <oberman () es net> wrote:

> The main reason I prefer ISIS is that it uses CLNS packets for
> communications and we don't route CLNS. (I don't think ANYONE is
> routing CLNS today.) That makes it pretty secure.

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...

                --Steve Bellovin, http://www.cs.columbia.edu/~smb