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feat(fuchsia): enable bidirectional network access for printer

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Allow devices on the WiFi network (192.168.50.x) to access the 3D printer
on the Ethernet subnet (10.1.0.x). This enables printer access from phones
and other WiFi devices when used with a static route on the router.

Changes:
- Add bidirectional forwarding rules between wlo1 and enp34s0
- Remove stateful connection restriction for simpler routing
- Improve comments to clarify traffic direction

Requires router configuration:
Route 10.1.0.0/24 via 192.168.50.237 (fuchsia's WiFi IP)
This commit is contained in:
♥ Minnie ♥ 2025-11-01 18:26:03 +08:00
parent 421ac61655
commit 9a26436dec
Signed by: jasmine
GPG key ID: 8563E358D4E8040E
1 changed files with 6 additions and 4 deletions
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10
nixos/fuchsia/services/internet-sharing/default.nix
View file

@ -42,11 +42,13 @@
extraCommands = '' extraCommands = ''
# NAT: masquerade traffic from Ethernet going to WiFi # NAT: masquerade traffic from Ethernet going to WiFi
iptables -t nat -A POSTROUTING -o wlo1 -j MASQUERADE iptables -t nat -A POSTROUTING -o wlo1 -j MASQUERADE
# Allow forwarding from Ethernet to WiFi
# Allow forwarding from Ethernet to WiFi (printer -> internet)
iptables -A FORWARD -i enp34s0 -o wlo1 -j ACCEPT iptables -A FORWARD -i enp34s0 -o wlo1 -j ACCEPT
# Allow established connections back from WiFi to Ethernet
iptables -A FORWARD -i wlo1 -o enp34s0 -m state \ # Allow forwarding from WiFi to Ethernet (phone -> printer)
--state RELATED,ESTABLISHED -j ACCEPT # This enables devices on 192.168.50.x to access the printer
iptables -A FORWARD -i wlo1 -o enp34s0 -j ACCEPT
''; '';
}; };
}; };