Quote:
Originally Posted by Chrysalis
ok here is my current setup.
1 x VM connection.
1 x ukonline connection.
router for ukonline ip 192.168.1.254
router for VM ip 192.168.1.1
so both routers same subnet.
laptop connected to ukonline router
desktop pc 1 connected to VM router
xbox360 connected to VM router.
desktop pc 2 connected to nowhere at the moment isnt often used
My theory is I can very easily get my laptop and desktop pc 1 talking to each other simply by connecting a cable between both routers, since they all on the same subnet thats all I need to do.
am I right or is something else required?
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Oh they'll see each other easily enough, just not whatever is behind each one. Remember that they will both perceive themselves as being the gateway to the network 192.168.1.0/24 so will look for a directly connected device.
If you connect them via their respective LAN ports your internal network will be just fine, apart from where the devices are to get their DHCP leases from - both devices would respond to a broadcast discovery message, and the potential for IP addressing conflict as both are handing out IP leases in total ignorance of devices taking leases from the other. You could turn DHCP off on one of the devices then you need to mess around with static assignment, not ideal.
I could go on, but the point is don't do it. Where there are 2 routers on a single subnet they are running some kind of redundancy protocol such as
HSRP to avoid the problems your set up would cause and devices aren't taking IP leases from the router.
You would need a dual-WAN router in between your LAN and the two routers, with a switch connecting to that dual-WAN router if there weren't enough ethernet ports available for your needs on the dual-WAN device. This would also have the bonus of allowing you to load balance between the connections.