Does `iiab_gateway_enabled: True` still work? [Yes, especially if IIAB DNS is customized e.g. `wan_nameserver: 8.8.8.8`]

[holta]

@EMG70 struggled to get "passthrough" to work today, without luck:

• No matter if upstream Internet was provided to the RPi 400 IIAB via an Ethernet cable, or via a 2.4FGz WiFi.

• He opened up UDP and TCP on both ports 80 and 443 (using IIAB's iptables firewall) just in case, but still couldn't get iiab_gateway_enabled: True to work.

• His test case: do student devices (connected to IIAB's WiFi hotspot) browse real/live Internet websites?

Nothing has worked so far. Of course after changing any network settings in /etc/iiab/local_vars.yml, he ran sudo iiab-network and then rebooted.

His iiab-diagnostics:

• https://dpaste.com/GMEWXM9PG#line-410
• https://dpaste.com/GMEWXM9PG#line-3056

Tangentially Related:

• PR iiab/iiab-admin-console#567
• PR iiab/iiab-admin-console#568

[holta]

@EMG70 got it to work... curiously by adding this DNS to local_vars.yml :

wan_nameserver: 8.8.8.8

[EMG70]

SUDO IIAB DIAGNOSTICS - https://dpaste.com/6VBF3GVTP I can confirm passthrough finally worked for both wifi and ethernet connections when wanserver setting is appended as above.I only tried after googling and found high scores relating to DNS. This worked for 2.4G and 5G as well .