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Forum Discussion

telcentris_9103's avatar
telcentris_9103
Icon for Nimbostratus rankNimbostratus
Oct 08, 2010

Lookup spurce ip address from persist entries

Here is my scenario     SIP VoIP     A(1.1.1.1) SUBSCRIBE --> F5 VS(2.2.2.2) --> B(3.3.3.3)   A <-- F5 VS <-- 200OK B   A <-- F5 VS <-- NOTIFY B     My issue is on the NOTIFY. ...
application delivery
dev
devops
iRules
Ben_95489's avatar
Ben_95489
Icon for Nimbostratus rankNimbostratus
Oct 12, 2010
Hey Darren,

 

 

I will disclaim this by stating that my experience with the SIP profile on the LTMs is fairly limited, so I could be missing something critical in my analysis. I believe, though, you can use the IP::remote_addr to get the appropriate address. ( http://devcentral.f5.com/wiki/default.aspx/iRules/IP__remote_addr.html ) You might need to use the clientside/serverside commands ( http://devcentral.f5.com/wiki/default.aspx/iRules/clientside.html ) to be sure that this grabs the correct address, though.

 

 

I believe the sample in the SIP::uri page attempts to accomplish something similar, actually: http://devcentral.f5.com/wiki/default.aspx/iRules/SIP__uri.html It seems like it would probably be wise to check the current SIP::uri to see if it mathes IP::local_addr and, if so, replace it with IP::remote_addr.

 

 

Again, my SIP-fu is weak, so feel free to correct me if I have a fundamental misunderstanding of the protocol. (Which is likely.)

 

 

// Ben