Forum Discussion

bojan_sukalo_20's avatar
bojan_sukalo_20
Icon for Nimbostratus rankNimbostratus
Jul 06, 2015

Plain old NAT and SIP

Hello,   What would be the easiest way to just NAT SIP traffic without terminating SIP connection on F5 as suggested in their official document here https://www.f5.com/pdf/deployment-guides/load-b...
nat
sip
bojan_sukalo_20's avatar
bojan_sukalo_20
Icon for Nimbostratus rankNimbostratus

Thanks Kevin,

 

If I got it right, I have to have only one virtual server in this case then (instead of two, one for clients to server and another for server to clients)?

 

By the way I've already tried simple SNAT but calls can not be established. I haven't taken packet capture yet to see whether there was a SIP NAT translation taking place.

 

Thank you anyway, I'll try with one virtual server configuration.

 

Cheers!

 

Bojan

 

Kevin_Stewart's avatar
Kevin_Stewart
Icon for Employee rankEmployee
Jul 06, 2015
You'd just need one VIP. All client requests pass through this VIP, and all server responses flow back through the same VIP. SNAT applied to the VIP is needed if the server knows how to go around the VIP for its responses.