28 Feb
2003
28 Feb
'03
8:46 a.m.
eBGP multihop carries with it the implicit possiblity of session highjacking - in a normal (Multihop=1) session, the router would not be able to find a duplicate neighbor with the specified IP address directly connected. Obviously, once you're saying that the neighbor could be anywhere in the world, what's to prevent me assigning my home Macintosh with a second IP address and injecting whatever I want into your network?
Just because you assign that second IP address to your Mac does not mean that anyone else in the world is going to see that announcement, which, in turn, would not let you to hi-jack the session. Alex