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Site-to-Site TO Site-to-Site VPN Communication

Posted on 2011-03-12
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Last Modified: 2012-05-11
Have the following configuration where site-to-site VPNs work fine. Cannot communicate from one end to the other directly.

Site A <---- VPN ----> Site B <----> VPN <----> Site C

Communications between Site A to Site B and Site B and Site C work fine. Site B is central facility. However, I cannot communicate directly from Site A to Site C and would prefer not to setup a Site A to Site C VPN. Are there special policies that must be set to accomplish this? All VPN tunnels terminate on the outside interface of the participating devices.
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Question by:pasouza
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by:ewkelly
ID: 35116284
Perhaps you need to add a route from site A to site C and back on the interface at site B, and also at sites A and C.
Do you get an error? if yes, what is the error?
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Istvan Kalmar earned 500 total points
ID: 35116291
Hi,

you need to configure hair-pinning:

http://www.petenetlive.com/KB/Article/0000040.htm

Best regards,
Istvan
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