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Corner-case question



Dan McDonald writes:
> Hello folks!
> 
> I've a specific question about a corner-case involving router-to-host
> tunnels.  Consider the following:
> 
> 	A ==(IPsec through the internet)====== R ------<protected network>----
> 
> Say host A is a host that reaches the protected network via an IPsec tunnel
> to router R.
> 
> My question is:	Is it possible/practical for R to have a single IP address,
> 		and the only way it is being "a router" is that it forwards
> 		packets tunnelled to it to its peers inside the protected
> 		network?  (Remember, a router is a machine that forwards
> 		packets.  That's the extent of the definition.)
> 
> If the answer to my question is yes, there's a small can of worms that opens
> up regarding the routing tables on R (that exercise is left to the reader
for
> now).

This reader seems to be too ignorant to figure this one out.  Are you
having problems with a specific implementation not being flexible enough
to handle this?



ben





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