If you want to connect two routers with each other then you will have to use cross-over and if you want to use switch in between them then you should use straight through.
Yes. However, it can be a problem as both routers probably want to act as DHCP server in network.
Also the firewall on some routers may not be able to completely turn off, so that could cause problems with sharing files between computers in network.
sheraz.pervaiz said:
If yes, then we have to use cross-over cable or straight cable?