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UDP Packet Dropped (not blocked) on SonicWall TZ190
Long story short, SonicWall is our gateway and firewall for a branch office. Connects to ISP fine and establishes VPN tunnel connection to our main office with no problem (and has been no problem for 6+ months). Recently have subscribed to Hosted PBX service and had this working (for about 1 week) but now the phones are not contacting their server (hosted somewhere other than our office) and the server believes that they are out of service and doesn't forward the inbound calls to them. Outbound calls work which tells me we have those ports open.
The picture shows a log from our SW TZ190 device showing that UDP packets are being dropped. I believe that this is the issue and that the phones are not responding to these "pings" and so the server won't forward incoming calls.
How can I ensure that all traffic can get it appropriately?
- A.png
- 56 KB
On the left was the source IP from the hosted PBX and on the right is our external IP
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