Externally access router page behind another router

[ynohtna]

Sorry this may be very trivial

But I have a WNDR3700 connected to internet and I have an old wrt54gl with dd-wrt connnected together by their switch ports. I'm using the wrt54GL like a switch for extra ports I need (to printers and what not)

What I want to do is access the WRT54GL admin page externally. Internal address works fine I have the external web gui option on and have a port for it to listen on.

Now I probably need to have it plugged via my WAN port put assigning it an IP in the same subnet doesn't seem to make anything accessible.

Any hints on what I'm doing wrong? Many thanks!

 

[jdabbs]

It should work using the following configuration:

Both routers connected via LAN ports.
GL has a LAN IP in the same subnet as the 3700's LAN.
3700 has port forwarding set up to point port 80 at the GL LAN IP.

It may be necessary to append the port, so an attempt to access it externally using a browser would look like: 3700's_WAN_IP:80

 

[ynohtna]

thanks for that

Though I think I'm screwed because port80 is blocked by my provider. Unless I can change the port it's listening on for internal network.