Need help. Connecting Linksys 1200ac to Verizon Fios router

I edited my reply from earlier quite a bit -- worth re-reading if you've read it before.

On the dhcp-option 121 static routes... here discusses doing it w/ the uci application giving us the added bonus of not having to mess with the decimal to hex conversion:

uci add_list dhcp.lan.dhcp_option="121,192.168.1.1/24,192.168.0.1"
uci commit dhcp
service dnsmasq restart

Running this from the router's ssh terminal should configure the DHCP to give out the static route 192.168.1.1/24 via 192.168.0.1 to all clients.

So, I think that'll do it.... to recap the steps.

  1. Configure OpenWRT router with LAN IP 192.168.0.1/16 (or whatever you want in that /16), possibly changing the DHCP IP range to give out 192.168.2.1-192.168.254.254 to avoid the rerouted reserved 192.168.1.x/24 space.
  2. Setup additional VLAN on an unused LAN port.
  3. Add interface (LAN 2) in the 'interface' tab, adding the newly created VLAN to the 'physical interfaces' tab.
  4. Configure this new LAN 2 with a static IP in the 192.168.1.x/24 range (my example I've been using is 192.168.1.100) w/ gateway 192.168.1.1 and DNS 192.168.1.1.
  5. Change network interface metric on LAN and LAN 2 so that LAN 2's metric is lower than LAN's.
  6. Verify the OpenWRT router has internet. Simple way to do this is the following from SSH terminal:

ping google.com

  1. Run the following from SSH terminal on the OpenWRT box.

uci add_list dhcp.lan.dhcp_option="121,192.168.1.1/24,192.168.0.1"
uci commit dhcp
service dnsmasq restart

  1. Connect a client to the OpenWRT LAN and verify that the DHCP static route was dynamically assigned and all behaves as expected.

Hope it goes well.