ATA 186 version 2.16
Cisco 3662 12.2(15)T7
Open Source H.323 Gatekeeper
NAT translation with ALG
I am running an ATA186 connected into the inside interface of a 3662 running NAT. The outside interface has an open source H.323 Gatekeeper connected on the LAN.
Testing
Using Netmeeting I can connect through the NAT router and get a RAS RCF message back. Working OK.
Using the ATA 186 I get a failure.
Sends GRQ and gets GCF back.
Then sends a RRQ.
This is where it fails as the RRQ message has the non translated ("un-natted") source address of the ATA. The GK then sends a RRJ stating "invalid Call Signal Address".
It seems as though the layer 3 header IP src/dst is being translated but the higher layer information is unchanged. This is supposed to be taken care of by IOS Application Level Gateway (ALG) feature.
Anybody got any ideas??
