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Forum Discussion

fwti_128923's avatar
fwti_128923
Icon for Nimbostratus rankNimbostratus
Jul 15, 2013

Configure BIG-IP as gateway for SIP servers

Hello everyone,     I am new to using F5 to process outbound SIP traffic as I've always been using it as an inbound SIP load balancer. Now, I have a need to "wrap" F5 around multiple SIP ser...
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What_Lies_Bene1's avatar
What_Lies_Bene1
Icon for Cirrostratus rankCirrostratus
Sep 02, 2013

Hey Frank, I'm not a SIP expert but here's my view;

 

1) I think it's good the SIP servers have the F5 as their gateway but you could alternatively have a different default gateway and static routes for the client networks/addresses pointing to the F5.

 

2) If you do use the F5 as the default gateway, the IP address you would use is the Self IP on the F5 for the VLAN the servers reside on. If you're using HA, the Floating Self IP.

 

3) If you want connections initiated by the SIP servers to appear to be from the inbound Virtual Server IP you'll need to do some SNATting. This may negate the need for a VS at all.

 

4) I'm pretty sure you should be able to configure an IP Forwarding type of VS with that version but I'll have to investigate further later today.