Setting up a second router to be a separate network on a home networking router
I would like to use a second router to set up a second network on my home network.
The first router is plugged into our cable modem. I have that plugged via Ethernet from one of the LAN ports on router 1 to on of the LAN ports on router 2. Is this correct or should it be plugged into the WAN port?
- Router 1’s IP is
192.168.1.1. - I set Router 2 to be
192.168.1.2.
Right now they’re both on the same subnet. How can I get them so they’re on separate networks?
Router 2 uses DD-WRT and it doesn't allow me to use DHCP to set them on something other than 192.168.1.x while it has a 192.168.1.x address.
Any help would be appreciated.
22 Answers
I understand this question is a few years old, but it still pops as first result on google searches, so here is the most direct route for what the asker was trying to achieve.
Modem -> WAN on Router A
LAN on Router A -> WAN on Router B.
Router A configured with a DHCP pool of 192.168.1.1/24
Router B configured with WAN port at an IP in the 192.168.1.x range (or just set to receive dynamically), and a DHCP pool on the LAN side of 192.168.2.1/24.
4When a packet from router 1's client, let’s say from 192.168.1.5/24 wants to send a packet to a client on router 2, let’s say 192.168.2.5/24 it simply cannot.
Routers that we use at home would send a packet that is addressed to a client in different subnet to the gateway and in this case it would be 192.168.1.1.
Little does router 1 know the presence of 192.168.2.0/24 unless your router supports routing; either static or some routing algorithm.
If it does then the routing table in router 1 should have an entry for 192.168.2.0/24 and the port that can be used to reach it.
