Posted: Sun Dec 15, 2019 22:26 Post subject: howto use multiple routers?
I have a very limited understanding of networking and an overcomplex setup! But I'm hoping to learn.
I have two routers: connecting to my modem is a Firebrick. One of the subnets on the Firebrick has an ethernet connection to a number of hosts and a printer.
This subnet is allocated addresses 192.164.0.2-127.
The Firebrick doesn't do wifi. I have an R7000 running dd-wrt attached to another subnet of the Firebrick. The Firebrick is allocating that router the WAN address 192.168.0.128.
I want some limited access from the wireless subnet to the wired subnet. In particular, I want wireless hosts to be able to print to the printer, and I want to be able to ssh between hosts on the two subnets.
I can't work out how to do this. I tried setting dd-wrt to provide clients with addresses 192.164.0.129-355, so that hosts on the two subnets would not have colliding address but could have a 255.255.255.0 netmask. If I do that, hosts on the wireless subnet can neither access hosts on the wired subnet, nor do DNS lookups or access the net. If instead I set dd-wrt to provide addresses 192.168.1.* then hosts on the wireless net can do DNS lookups and access the net. But they still can't access the wired subnet, even if I set all netmasks to 255.255.254.0.
Should there be a way to get communication between these subnets or am I trying for the impossible?
Thanks for any advice
Graham
PS if its relevant there aren't any windows hosts in this setup, it's all varieties of linux
I had trouble matching the variable names on that page with the ones I had. I did find a variable that seemed to say setting it would pass DHCP straight through from the main router, so I set that - after which I can no longer connect to the R7000 at all. All the instructions for reset have variations on 'hold the off button down for a certain number of seconds'. Having done that, I still can't access it. It doesn't respond to pings from the parent router any more, either. So I'm kind of stuck at the moment- wasn't expecting to effectively brick it by changing one setting value.
