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Hmm. Generally for VPN's subnets should not overlap at either end of
the tunnel or the routing fails. Site B has a massive subnet,
10.0.0.0 - 10.255.255.255 (16,777,216 addresses). Unfortunately
subnet A is entirely in Site B's subnet. Does site B need such a big
subnet or can site B change to another subnet (either in the
172.16.0.0/12 range or 192.168.0.0/16 range but not 192.168.0.0/24
which is not a good subnet and is, in any case, being used at site
C).<br>
<br>
The problem you have is that site B sees 10.10.0.0/16 as local to
itself so won't route traffic to Site A down the VPN.<br>
<br>
Nick<br>
<br>
<div class="moz-cite-prefix">On 25/02/2016 21:00, Leonard Wood
wrote:<br>
</div>
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<p class="MsoNormal">I have a single Openswan deployment
(2.6.38/K4.2.0-27-generic) currently connected to two
sites—Site A and Site B. Let’s call my OpenSwan deployment
Site C.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I need to have Site A private subnet
communicate with Site B private subnet, and vice versa.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Site A Private Subnet = 10.10.0.0/16<o:p></o:p></p>
<p class="MsoNormal">Site B Private Subnet = 10.0.0.0/8<o:p></o:p></p>
<p class="MsoNormal">Site C Private Subnet = 192.168.1.0/24
(OpenSwan Deployment Subnet)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">As of current, I can only communicate
to/from Site A from Site C and I can only communicate to/from
Site B from Site C. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Any suggestions how to accomplish cross
site connectivity so Site A and communicate with Site B
through Site C and vice versa?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Secondly, do you see any security concerns
with this approach? Could traffic be intercepted or read in
plaintext from my OpenSwan instance (Site C) since it’s
essentially acting as MITM?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Many thanks in advance!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Leo<o:p></o:p></p>
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<pre wrap="">_______________________________________________
<a class="moz-txt-link-abbreviated" href="mailto:Users@lists.openswan.org">Users@lists.openswan.org</a>
<a class="moz-txt-link-freetext" href="https://lists.openswan.org/mailman/listinfo/users">https://lists.openswan.org/mailman/listinfo/users</a>
Micropayments: <a class="moz-txt-link-freetext" href="https://flattr.com/thing/38387/IPsec-for-Linux-made-easy">https://flattr.com/thing/38387/IPsec-for-Linux-made-easy</a>
Building and Integrating Virtual Private Networks with Openswan:
<a class="moz-txt-link-freetext" href="http://www.amazon.com/gp/product/1904811256/104-3099591-2946327?n=283155">http://www.amazon.com/gp/product/1904811256/104-3099591-2946327?n=283155</a></pre>
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