SIP Trunk configuration. Why is this working?

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dv8inpp

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Jan 5, 2019
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I have been having trouble receiving calls and the SIP provider provided this wireshark PCAP from their end.

I had 203.144.XXX.XXX/32 in the domain ACL as this is the public IP they gave me for their server.

I was unable to receive calls until I added 192.168.10.24/32 to my domain ACL.

192.168.10.24 is a private IP.

photo_2020-03-27_10-22-17.jpg
Once I address 192.168.10.64/32 I was able to receive calls.

Here is a SNGREP of a call that was succesful. There is no mention of the private IP.

Any thoughts on why I'm seeing a private IP on their PCAP and needed to add it to my ACL?

photo_2020-03-27_10-25-14.jpg
 
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