Routing using same subnet
Just wondering if there are limitation on using pfsense with its interfaces on the same subnet - it seems to do strange things.
I currently have a cisco 877 with a local interface of 192.168.0.1 and a bunch of other configuration i'm reluctant to mess with. We have an influx of users and have obtained a second dsl connection until fibre is provisioned. Obviously for this second account to be useful some of our traffic needs to be allocated to it. I could have a subset of users change from DHCP to static and set the new dsl modem as their gateway but I was looking for a more elegant load balanced solution using pfsense. The new dsl modem has a local interface of 192.168.0.2. I set up pfsense to have a LAN interface of 192.168.0.5, a WAN interface of 192.168.0.3 w/ gateway 192.168.0.1 and the OPT1 interface as 192.168.0.4 w/ gateway 192.168.0.2. I was then planning on having the DHCP server set peoples gateway to 192.168.0.5 and let pfsense do its magic but strange things happened. I can set the second modem to be on a different subnet because its currently not used but i dont really want to mess with the 877 because it has a bunch of port forwards, IPSEC vpns etc on it. Is the fact that LAN and WAN are on the same subnet the cause of my problems?
Yes it's never going to work.
WAN 192.168.0.2/24 gateway 192.168.0.1
WAN2 192.168.2.2 gateway 192.168.2.1
Source 192.168.1.1/25 gateway WanFailsToWan2
Source 192.168.1.128/25 gateway Wan2FailsToWan