So the guest networks are working properly and isolated and unsecured as they should be. To take this a step further I would like to redirect all internet web requests from network clients on both networks to a specific website; a different website per network. I've tried to implement iptables NAT rules to redirect to a specific IP address but that doesn't work well enough since iptables NAT rules only run at layer three. The websites don't quite render correctly by only going to the IP address; there's a bunch of dns, redirects and hotlinking to other sites to put the website together.
I've kind of figured out that I need something that runs at layer 7; like a full featured proxy server or maybe captive portal solution.
I also only want traffic from those two guest networks to pass through the proxy or captive portal solution. My regular home network should go straight out to the internet.
I've tried looking at WifiDog and Chillispot but I couldn't tell if this would be the route to go.
I have a NAS that is capable of squid proxy server but it looks like this implementation of squid is only intended for web caching and does not do any web redirection.
Does anyone have any pointers they could suggest? Rather than squid, would you recommend something else? I'm dangerous enough with Linux that I could probably implement a solution with a little guidance.
HTTP redirect is just like what I was doing with iptables. It only allows me to provide an IP address to redirect all outbound packets to. I need to be able to provide a URL.
If I ping the website that I want to redirect to it returns an IP address, but I can't just take that IP address and insert it into my address bar. Upper layer functions need to be involved.
Additionally, the HTTP redirect feature doesn't allow me to specify settings separate settings depending on the WLAN the client is connected to.
