Resolution
To disable SIP inspection on particular interface following steps are required :-
- Remove SIP inspection from global policy
- Create a new policy for inspecting SIP
- Apply it to all the other interfaces.
Refer to following configuration example:-
hostname(config)# policy-map global_policy
hostname(config-pmap)# class-map inspection_default
hostname(config-pmap)# no inspect sip
hostname(config-pmap)#exit
hostname(config)# policy-map sip_policy
hostname(config-pmap)# class-map inspection_default
hostname(config-pmap)# inspect sip
hostname(config-pmap)#exit
hostname(config)#service-policy sip_policy interface [interface]
Note:- [interface] is the interface name on which you need to have SIP enabled.
For additional help with traffic inspection on PIX/ASA refer to Modular Policy Framework
