[plug] IPSEC routing between adjacent subnets

[Ian Kent]

On Sat, 2007-05-12 at 21:43 -0700, Steve Baker wrote:
> Confusing, I know.  I probably could have set up the tunnel on Gateway X 
> instead of creating a new gateway V inside the .100.0 network, but X is 
> already a gateway to 3 other networks and I didn't want to risk getting 
> something wrong and being unable to fix it remotely.

Not really.

How can a packet find its way to a particular router if it has an
address that appears to be on the local network? The arp will return
address not known and since the address belongs to the local network it
obviously (tongue in cheek) belongs to a non-existent host.

It's unlikely that arp broadcasts will be forwarded through the tunnel
but maybe I'm wrong about that.

Ian