I have an Archer C7 (Atheros). It has two physical wireless network adapters, one each for 2.4 GHz (ath0) and 5 GHz (ath1).

I share my internet with my neighbor, he uses ath0 and I use both ath1 and the wired ports.

I would like to isolate the two networks from each other, they only need to communicate within themselves and with the internet.

I also have eth0 and eth1, but I don't know what the two actually refer to.

How would I properly separate the networks from each other with DD-WRT?

I tried following this guide, but I had no internet connection.

The settings I ended up with are:

enter image description here

  • Perhaps try this guide: Multiple WLANs – heavyd Feb 16 '16 at 21:28
  • Do you share the same internet connection? How is that connection being setup? – xpac Feb 16 '16 at 22:56
  • @xpac It's set up like a standard router right now, nothing fancy. He has ath0 with his SSID, I have ath1 with my SSID, I have the wired ports. Both use DHCP. I haven't touched anything advanced in the router except for attempting to set this up (the screenshot in the question), but those changes were reverted. – vaindil Feb 17 '16 at 14:11
  • Okay, let me put it differently: How shall it be afterwards? If you say you are using the wired ports right now, I assume you have some kind of modem or router from your ISP which is connected to one of the wired ports right now, and your target is to share that internet connection with your neighbor, but without the ability of him accessing anything on your network or the other way round. Is that right so far? – xpac Feb 17 '16 at 14:14
  • 1
    Okay, some basics first, some time since I did that: ath0 and ath1 correspond to your 2.4 GHz wifi and the 5.0 GHz wifi. If you're splitting them up like this, one of you will be stuck with 2.4 GHz and the other one with 5.0 GHz, which is not what you want. About eth0 and eth1 - eth0 is usually a dedicated, single WAN port on your router, while eth1 means the four LAN ports. DD-WRT can not differentiate between those LAN ports, they're all the same to it. I'll have to figure out how this is done in DD-WRT and will try to give a better answer here later. – xpac Feb 17 '16 at 14:27

what u really want to do is to setup a GUEST network. There r a number of tuts on that topic (DD=WRT Guest network). I didn't follow the guide u used but a quick look didn't mention Guest so I don't know what that really does. try setting it up as a guest network.

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