SIP - Inbound Call Rejectec

[anujnaidu]

Hi all,

Below is the message i get on my 1751v router on an imcoming call. I beleive the issue is something to do with Nat, but don't know where to begin. Would appreciate your help please..

Mar 29 21:24:26.773: //-1/343765653766/SIP/Info/sipSPIUaddCcbToTable: Added to table. ccb=0x83EF840C key=call-F114D869-D5DF-2A10-1305-7F7C@210.0.83.2B

Mar 29 21:24:26.781: //-1/343765653766/SIP/Info/sentErrResDisconnecting: Sent an 3456XX Error Response

Mar 29 21:24:26.781: //-1/343765653766/SIP/State/sipSPIChangeState: 0x83EF840C : State change from (STATE_IDLE, SUBSTATE_NONE) to (STATE_DISCONNECTI)

Mar 29 21:24:26.785: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:

Sent:

SIP/2.0 400 Bad Request - 'Invalid IP Address'

[jsivulka]

The SIP gateway will not accept INVITE requests destined for an IP address that does not exist on the gateway. The NAT device would have to do a SIP "fixup" to translate the IP addresses in the SIP messages. Cisco PIX firewalls support this with version 6.2 and above. It is SIP authentication problems. Can you send me the output of "debug ccsip all"