Hi all after the client put all their servers network behind the fireweall ASA 5585 the voip call´s was not getting thru and not working , at the time of the maintenance window i was not abble to get any log of the issue because i as running out of time so i made a rollback on the change, there was no access-list at that time i did permit ip any any at both directions at the time of the issue and still not working.
I have seen that some VOIP systems uses some ip options on the calls and the ip option is enable by default on the 8.2 version ( i am using ver 8.2(5)).
it´s possible to turn off the inpection of the ip options and this could fix the issue ?
PABX brand is siemens.
class-map inspection_default
match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
parameters
message-length maximum client auto
message-length maximum 512
policy-map global_policy
class inspection_default
inspect dns preset_dns_map
inspect ftp
inspect h323 h225
inspect h323 ras
inspect rsh
inspect rtsp
inspect esmtp
inspect sqlnet
inspect skinny
inspect sunrpc
inspect xdmcp
inspect sip
inspect netbios
inspect tftp
inspect ip-options
inspect icmp
!
service-policy global_policy global
Thank you.
