23.7.7 can't ping 8.8.8.8 but works on client

[s4nguine]

Hello,

After latest update I observe weird behaviour on my box.
Looks like OPNsense lost outbound access


On the client side I have second DNS from DHCP pointing to 8.8.8.8:



Do you know what might happened there? It was working before update.

[s4nguine]

I did some troubleshooting steps.
My setup requires usage of ISP router, it's has DHCP for address 192.168.0.1/24 so I enabled it on the WAN interface on the OPNsense - I got address 192.168.0.136/24.

First thing, ping to default gateway - no luck:


Then I checked ARP on opnsense:


And compare it with MAC on the ISP router interface - last number is different:


Question now is what can I do with it? I'm not that advanced in networking and I really don't want to mess something up so I won't be able to work tommorow morning 

Everything else from VLANs is able to access Internet, so at least it's working there.

EDIT:
Nevermind, I drilled down into ISP router config and LAN MAC is correct - I'm clueless at this point


EDIT2:
Did another tests:
1. Restarting ISP and OPNsense routers - same
2. Setting up static IP address on WAN - immediately lost Internet on my host
3. Changed DHCP range on ISP router to force renewal to new IP address on WAN interface - new address was correctly assigned so it can reach ISP router, but normal traffic still can't leave router :/

[dkanzlemar]

Not sure if this will help, but I've been seeing the same behavior. I was able to address it (as a temporary workaround), by going to System --> Settings --> General. There, I clear my DNS server list, then click Apply. Once that has taken, I then add my DNS Server(s) and click Apply again. At that point, it seems to work. Until I restart.

Definitely seems like a bug in this version, and hope it gets fixed soon.