Hi all

In the VPN lab section 4.12, the DMVPN hub is kept behind the ASA. The DMVPN
tunnel doesn't come up and fails at beggining of QM. The following error
seen on the hub.
This error will be seen, if the interesting access-list is not mirror or
the remote peer IP address doesn't match local peer address or the
transform-set doesn't match.

With IPSec profiles, the only thing that is configurable is the
transform-set and for me that matches.


*Mar  5 13:17:50.050: ISAKMP:(4048): IPSec policy invalidated proposal with
error 32
*Mar  5 13:17:50.050: ISAKMP:(4048): phase 2 SA policy not acceptable!


On the spoke, you can see interesting as following in the "sh crypto ipses
sa". Notice the remote ident, it is actually the translated IP address.
This is the ident that the spoke will be sending to the hub in the IPSec
phase2.



local  ident (addr/mask/prot/port): (10.20.30.40/255.255.255.255/47/0)
remote ident (addr/mask/prot/port): (10.20.30.41/255.255.255.255/47/0)


 On the hub, the actual local address will be different and will not be the
same as the remote ident sent by the spoke. Since IPSec SA on ASA will have
untranslated as the local ident
and the remote ident sent by the spokes are different, I think the IPSec
phase 2 is failing for me.

Unless the ASA translates the remote ident to the actual untranslated ident
like the DNS alias feature, I don't think this will work.

May be it is bug in my images as it as worked for IPexpert when they wrote
the lab.


With regards
Kings
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