[SOLVED] Wireguard-go silent and no listen on fresh install

[khajiit]

Hello!
I'm trying to link two OPNsenses, both are behind NAT.

• fresh install
• updated
• only basic wan/lan configure

On gateways portforwarding working great: I can see packets with `tcpdump` inside OPNsense when attaching to console and doing `netcat` from other gateway.
`wg0` interface gets it's address and routes are added to system.

But `netstat -l4n -p udp` shows that noone is listening choosen port (I've tried empty, default 51820, 52000, 7000)

Running `LOG_LEVEL=debug wireguard-go <path to wg0>` also gives no clue.

Package versions are:
wireguard-go   0.0.20220316_1,1
wireguard-tools   1.0.20210914_1

Followed this guide https://docs.opnsense.org/manual/how-tos/wireguard-client.html

[khajiit]

First of all, rather than in linux,nor kmod nor go WILL NOT SHOWN AS LISTENiNG.
Wireguard debugging is bad as hell by design, and this makes it much harder.

Second, incoming traffic must be EXPLICITLY enabled not only on WAN but on WireGuard(Group) too.