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<font size="4">Hello List,<br>
<br>
I am connecting multiple XFRM interfaces, each being in a
different VRF, between two servers running strongSwan 5.9.4.<br>
<br>
As I am running dynamic routing protocols over those XFRM
interfaces, all traffic selectors of the CHILD_SAs have been set
to 0.0.0.0/0 & ::/0.<br>
<br>
Now, the responder is not being able to distinguish between the
CHILD_SAs anymore (due to the same TS) for one IKE_SA and all the
CHILD_SAs of the initiator end up in the same (the first) CHILD_SA
in the responder, meaning the different XFRM interfaces of the
initiator are being terminated all in the same XFRM interface of
the responder.<br>
<br>
My current workaround is to create one IKE_SA per CHILD_SA as I am
able to set the local and remote ID in the IKE_SA and use these to
distinguish the tunnels as the local and remote addresses are the
same aswell. Unfortunately. the CHILD_SA parameter "reqid" is a
local setting only and looking at the docs I can't see another way
to set some "ID" of some sort to be able to distinguish between
overlapping/identical traffic selectors. Am I missing something
here or is this the only possible workaround?<br>
<br>
<br>
Thanks<br>
<br>
- Marcel<br>
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