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Re: IPSEC tunnels for LAN-to-LAN interop issue

On Tue, 31 Aug 1999 23:31:17 -0000 you wrote
> 	If BGP routes to a next hop which is more than one hop away, then BGP
> requires that the IGP be able to resolve the intermetiate next hops and
> you are back where you started.

You have this problem anyway because you need your GRE tunnel needs to
be established. You have to have some route from SGW1 to SGW2 regardless.
Given that requirement, is the simplest way to "discover what is out there"
(which is the desire that started this thread-- quote from Steve Waters)
to tunnel RIP and/or OSPF-- and all the cruft that goes along with that-- 
between them or to just use BGP? BGP is a _much_ simpler protocol that OSPF
and either is _much_ better than RIP.