Fwd: [vpn] Site-to-site VPNs to same networks

[Natasha Smith]

>=?iso-8859-1?Q?Siddhartha_Jain?= writes:
>  > I need to establish site-to-site IPSec tunnels to
>  > remote networks whose IP addressing is not determined
>  > by me. These networks might use the same IP address
>  > pools for their LANs.
>  >
>  > How do I configure my VPN device in such a scenario?
>
>Generally the answer is you don't unless you are prepared to renumber
>the networks.

One other point -- if you do this, you are using private addresses
outside your private network.  In other words, you are "violating"
RFC 1918.  This observation works, once in a while, to explain
why this shouldn't be done.


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