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Trying to setup a wifi router, so that the wireless devices can only access a particular IP/port on the wired network.

On "BT Voyager" router all the devices connected to the router can talk to each other, even with a firewall rule of "block all protocols from all addresses to all addresses, inbound and outbound". Presumably its firewall only applies to connections going via the broadband/phone line?

Are there other brands of wifi routers which have better support for firewalling between the WiFi and Ethernet devices?

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1 Answer 1

Are there other brands of wifi routers which have better support for firewalling between the WiFi and Ethernet devices?

Yes, there are many firewall options.

DD-WRT

DD-WRT is a replacement firmware for many consumer level routers. To install it, you actually flash your router with the new firmware. It isn't for the faint of heart, as there is a real possibility of making your device not start up again. The risks are usually outweighed by the benefits, because a router with ddwrt can do vlan tagging, custom policies and so much more.

Segregate your router from your firewall

Use a dedicated firewall. If you have an old computer lying around, install one of the following OS's on it, and you can easily create business level firewall rules

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Relevant DD-WRT feature seems to be dd-wrt.com/wiki/index.php/Separate_LAN_and_WLAN –  OJW Aug 2 '13 at 16:13

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