A 100Mbps ethernet connection only needs two pairs so you can wire 2 RJ45 connectors to each end of the cable giving you 2 connections to the modem ports down a single 4 pair cable. I can confirm that this does work. Obviously you will need RJ45 connectors and crimp tool.
wolvesmad (knowledge is power)
Tue 14-Apr-20 16:00:59
There's no need for a separate cable. I've an HG612 connected to an Asus router set up for PPPoE and can access the HG612 via it's IP address over the single ethernet connection. There's quite few howtos around on how to do this but shout if you can't find them and I'll dig out the config (may take a few days as will be away from the property until the w/e).
The only possible gotcha is if you want to access the modem from other devices than the router as you may need to set up a static route for the HG612's address on the router.
wolvesmad (knowledge is power)
Wed 15-Apr-20 09:38:17
The HG612 is wall mounted above the master socket in the hall. There's no space for a router to go there.
A cat6 runs under the floor to the cabinet TV where my router is and all other ethernet devices. I'd either need to use the Cat6 as a DSL extension cable or run a new DSL cable.
A lot of effort really.
The hallway is a lot cooler than the lounge too, ideal for the HG612 with it's notorious overheating issues.
Just a few words of note:
- while the HG612 does have a DHCP server, I've never got it to work. So just set the DMZ interface you use to static with 192.168.1.100/24.
- The router behind the HG612 needs to be able to assign an interface independently. The PPPoE connection is usually a virtual interface like pppoe0 which is bound to your WAN. The underlying Ethernet interface (e.g. eth0) can then be bound separately with 192.168.1.100/254 and you can then get free access to 192.168.1.1 of the HG612.