Hello,
I'm facing a strange issue: OpenWRT is able to establish a connection with Pangolin (Gerbil), but no traffic is passing through.
Specifically, when I try to ping the Gerbil service, all packets are dropped. Likewise, when Gerbil tries to ping the wireguard interface, those packets are also dropped. This occurs even with no firewall zone assigned to the wireguard interface, so there should be nothing blocking the traffic.
I performed a packet capture and can see traffic coming from Pangolin, but there is no response—only timeouts.
I've tried assigning firewall zones, inspecting routes and rules, and everything appears to be configured correctly. I even tested with a fresh OpenWRT VM, but the result was the same.
At this point, I'm unsure where the problem might lie.
default via 192.168.20.1 dev eth0
REDACTED via 192.168.20.1 dev eth0 (PANGOLIN IP)
100.89.128.12/30 dev wg0 scope link src 100.89.128.12
192.69.0.0/24 dev eth1 scope link src 192.69.0.1
192.168.20.0/24 dev eth0 scope link src 192.168.20.253
interface: wg0
public key: REDACTED
private key: (hidden)
listening port: 51820
peer: REDACTED
endpoint: REDACTED:51820
allowed ips: 100.89.128.1/32
latest handshake: 6 seconds ago
transfer: 3.73 KiB received, 2.70 KiB sent
persistent keepalive: every 5 seconds
OpenWrt -> Gerbil
root@OpenWrt-vc:/# ping -I wg0 100.89.128.1
PING 100.89.128.1 (100.89.128.1): 56 data bytes
^C
--- 100.89.128.1 ping statistics ---
20 packets transmitted, 0 packets received, 100% packet loss
Gerbil -> OpenWRT
root@20a6bc290716:/# ping 100.89.128.12
PING 100.89.128.12 (100.89.128.12) 56(84) bytes of data.
^C
--- 100.89.128.12 ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 3063ms
Tcpdump: (trying to acsess the openwrt UI by pointing a subdomain at the uhttpd)