I have a VPN set up between an 871 router and an ASA 5505. VPN tunnel is up and I can pass traffic between the LANs. I can hit the phone system from the remote site (behind 871) as well as the main site via VPN tunnel. But, none of the phones will register. While looking at the phone system, I can see them registering/unregistering - Yes. The VPN tunnel is up.
I am getting the following message in the log:
Deny TCP (no connection) from 192.168.14.4 [remote LAN]/51373 to 10.10.10.1 [phone system]/2000 flags PSH ACK on interface outside
While the phones go through the register/unregister process. I have an ACL that permits all between the two sites as well as all of the other Nat/No-Nat etc etc.
Any thoughts would be much appreciated.