Last Modified: Nov 02, 2023
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
16.0.0, 16.0.0.1, 16.0.1, 16.0.1.1, 16.0.1.2, 16.1.0, 16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5, 17.0.0, 17.0.0.1, 17.0.0.2, 17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3
Fixed In:
17.1.1, 16.1.4
Opened: Dec 28, 2022 Severity: 4-Minor
BIG-IP does not translate the SDP or via headers IP with listener IP for an outbound call which causes it to drop the 200 OK response.
Media pinholes are not created for INVITE.
In SIP ALG, the INVITE request contains an FQDN Route header.
In the SIP_REQUEST event, a specific Route header could be removed and Insert it again in the SIP_REQUEST_SEND event before sending the request out. For example, when SIP_REQUEST { set pd_route_hdr_count [SIP::header count Route] set pd_route_unset 0 set pd_route [SIP::header Route] if {[SIP::method] == "INVITE" && ($pd_route_hdr_count equals 1) && $pd_route contains "sip:someclient.site.net;lr" } then { SIP::header remove "Route" set pd_route_unset 1 } } when SIP_REQUEST_SEND { if {[SIP::method] == "INVITE" && ($pd_route_unset == 1)} { SIP::header insert "Route" $pd_route } }
In SIP ALG, if the Route header is FQDN in INVITE, then it should allow it to pass without any modification.