Routing UDP SIP responses to Via Address

What I included previously is the entire thing (minus a log statement).

 

 

when SIP_RESPONSE {

 

log local0. "Sending Response to: [SIP::via sent_by]"

 

node [SIP::via sent_by]

 

}

 

 

We have traffic from IP1 to the F5 VIP (VIP), out to a sip endpoint (SIP).

 

The traffic arrives at (SIP) with a SNAT IP on the F5.

 

We modify our sip response to force a VIA of another test box (IP2) to test the routing of the iRule.

 

The response is sent back to the SNAT IP and our iRule is executed.

 

We see "Sending Response to: (IP2)", but the tcpdump shows the packet is sent to (IP1).

 

 

Thanks