Hello,
I am having trouble getting an iOS app call Pinger/Text Free (www.pinger.com) to work with Sophos UTM 9.3.
1) I checked the firewall log and UDP port 5060 is being dropped to Pinger's servers (199.87.160.0/22).
severity="info" sys="SecureNet" sub="packetfilter" name="Packet dropped" action="drop" fwrule="60002
2) I added a rule: Internal (Network) ->SIP -> Any
3) Still no go. Now UDP port 2250 shows up as trying to connect to Pinger's server and is getting dropped. Not sure why port 2250 is being used.
4) Only if I write a rule: Internal (Network) -> SIP & UDP port 2250 -> Any - will the app work. (I can also define a network definition limited to 199.87.160.0/22 and replace "Any" without a problem.
5) Troubleshooting on Pinger's support page: https://pinger.zendesk.com/hc/en-us/articles/203619824-Troubleshoot-Voice-Problems - only lists ports 5060 & 57842 - 57845 as being needed.
So, what is this port 2250? I have never seen port 2250 used by my old firewall (IPCOP 2.17). Is this an okay setup or should I be concerned about port 2250.
Thanks.
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