Data Terminal Eqipment (DTE)
Ethernet port
A Router/Modem
Yes it is.
Put the networkcable provided by the company that connects you to the internet into the WAN port of your Linksys router.With a networkcable connect any 3com switch port to any Linksys LAN port.
Usually it has "WAN" or "Internet" next to it. If you still cannot find that, refer to the router's manual to find the correct port.
computers in one office
Take a look at the back of your router. It typically will be labeled "WAN". Refer to your user manual for detailed information.
A Router/Modem
Plug the two computers in to the router, and connect the router to the modem.The router may have two kinds of ports, one port marked WAN (Wide Area Network) and several ports marked LAN (Local Area Network). If so, the WAN port goes to the modem and the LAN ports are for your computers.That's it.
The wireless router should have a plug for a power cord, a WAN port, and a switch. The power cord should be plugged into a known good outlet. The WAN port will usually be connected to the modem using straight-through patch cable.
Ethernet ( not sure )
A cascaded router because is a router connected to another router. As far as I know, there's two ways you can connect two routers together. One is from a LAN port to the WAN port of the other router and the other is LAN port to LAN port. LAN to WAN is useful for things such as network segmenting, say that you want the LAN of the first router not to be able to see the LAN of the second router. That can work. Whereas with the second way, the second router pretty much becomes a switch and you can have access to devices on both networks without the need for port forwarding. Consider it acting as a swithc with a IP address pretty much. However in this method you have to make sure the LAN IP of the second router is within the same subnet as the first in order for this to work. So let me give you a example of how it can be setup: LAN to WAN: Router A WAN IP: Issued from ISP (Usually through DHCP) LAN IP: 192.168.1.1 Subnet Mask: 255.255.255.0 Router B WAN IP: Issued from the DHCP server of the first router or can be statically set to be a address within the first routers LAN LAN IP: 192.168.2.1 Subnet Mask: 255.255.255.0 Note: With this method, computers on Router B can connect to devices on Router (including the router itself) but not vice versa. Also...you cannot access computers via NetBIOS names (computer names) in this setup. You have to access them by their client LAN IP LAN to LAN Router A WAN IP : Issued from ISP (Usually through DHCP) LAN IP: 192.168.1.1 Subnet Mask: 255.255.255.0 Router B WAN IP: Not used since nothing is connected to the WAN port LAN IP: 192.168.1.254 Subnet Mask: 255.255.255.0 Hope this helps you out. :)