I just noticed today that I can no longer ping any of our VPN endpoints (all Sonicwalls), though our own SW reports that the VPNs are active. I also cannot ping any external hosts, such as google.com, yahoo.com, etc...
I just noticed this today, it's certainly a very new problem, as I have batch files written that ping our various VPN endpoints, and I run them frequently if there's ever an issue, or I want to confirm connectivity, and they have always worked before.
If I use a different Internet connection (not connected to the SW), I can ping Google etc, so it's not a Windows issue. I have done 2 soft restarts and 1 hard restart on our SW. Immediately after restarting, the SW allows pings to all of the locations I mentioned above, but then the replies stop, about 20-30 seconds after restarting. Around the same time, I see in the logs this message:
ICMP packet dropped due to policy
The funny part in all this, is that the SW has not been changed in months, so I don't get why it's suddenly blocking all these outbound pings.
Does anyone know what I could check or change to restore the ability to ping?