Help with router connecting please

Mike Potts · 8 Feb 2022 at 12:35

Hi everybody

Can anybody help with the following situation please

I have a modem/router (router A) supplied by my ISP which must be used for VDSL to work
Router A is controlled by, and monitored by, the ISP and can not be used as a modem only nor put into bridge mode

My entire network is currently configured onto my ADSL router (router B)

I need to keep control of, and monitor, my network via router B, but router A has to be the device attached to VDSL circuit for ISP to connect VDSL to internet

My intention is to keep control of my network

Help with the connections between router A and router B and the configuration of router B would be much appreciated

Mike

Caged · 8 Feb 2022 at 16:49

If you say what the model numbers of each router are then people will be able to be more helpful

Mike Potts · 8 Feb 2022 at 17:05

Thanks for the reply Caged

I deliberately didn't give the model numbers as I am trying to understand the concepts (LAN connections, WAN connections, DCCP, DNS, DMZ settings etc), not the specifics

The ISP router that must be connected to VDSL is a FAST5364 and the router that has been running my entire network for at least 7 years without a single hitch is the superb DGND3700v2 (if it aint broke don't try to fix it!), although I have a number to choose from VDSL and ADSL

BigT · 8 Feb 2022 at 19:05

In principle you would connect a LAN port on router A to a WAN port on router B. You’d then tell router B to lease its WAN address via DHCP or give it a static IP in the range compatible with router A’s LAN settings. Then on router B you set up its DHCP server to use a different subnet and range to router A You connect all your client devices to router B. You’ll be double NATd if that’s important to you.

However you describe router B as an ADSL router. They often don’t have WAN ports and expect their internet to be fed into the modem built in so you can’t do this.