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How do I use an OpenWRT device as both an extender (for the main router) as well as a firewall + NAT box? (lemmy.world)

submitted 8 months ago* (last edited 8 months ago) by MigratingtoLemmy@lemmy.world to c/selfhosted@lemmy.world

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Conceptually, it's fairly easy to understand - nftables, relayd, likely some firewall application.

However, is it as simple as configuring the WAN port as the WiFi interface and leaving it at that? Note that I'm not bothered about double NAT since I won't be opening any ports, and the main router cannot be touched.

I do want my own SSIDs, my VLANs, control over the firewall etc. Basically, my own network space. If anyone has done this/has an idea of the problems I might run into, please do comment!

Appreciate the help!

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[–] anamethatisnt@lemmy.world 7 points 8 months ago (1 children)

Pretend the "main router" is a hotel wifi and use the TravelMate package.
https://github.com/openwrt/packages/blob/master/net/travelmate/files/README.md

[–] MigratingtoLemmy@lemmy.world 2 points 8 months ago (1 children)

Thank you! Could you explain a bit about what travelmate does under the hood? I'd like to know the basics of how it operates.

[–] anamethatisnt@lemmy.world 2 points 8 months ago (1 children)

The main config needed is AP+Sta mode, which is explained here:
https://openwrt.org/docs/guide-user/network/wifi/ap_sta

[–] MigratingtoLemmy@lemmy.world 2 points 8 months ago

Thanks!