Jase2985:

 

@shk292 because then you have 2 identical routers that have factory settings both will have the same static IP address for the LAN interface and this will cause a conflict on the LAN. Hence why i said connect it seperatly and either remove the static ip address and use DHCP or set a different static IP address

 

ps point 2, you cant assume that at all

 

I misunderstood your post - I thought you were saying the two routers should have the same address. As someone said below, I don't think you can use DHCP on the second router to pick up an address from the first - you need to manually set this, and ensure router A's DHCP range does not include the manually set IP address of router B.

Not sure about point 2 - I've never seen a "domestic" router that doesn't use the whole .255 subnet but I've only used a handful of different ones.