1 year ago
Last edited at 12:56AM on 2/27/2013
No they are not. An ADSL2 Modem is a modem that converts an ADSL signal from your ADSL2 internet provider into a format that can be connected to a computer. It's similar to a cable, satellite or fiber modem for cable, satellite, or fiber-optic internet. ADSL2 is a service that transfers internet over a phone line and has superseded ADSL, DSL, and dial-up.
A router on the other hand is a device that connects to an existing method much like a hub. While a hub just splits a signal to multiple computers, they each need an IP address from your internet provider and usually they only provide you with one or two of these. A router solves this problem by creating a private network behind it. It gives each of your computers a private IP (they all share 1 public IP) and then the router worry's about "routing" the information from the internet to the different computers.
Most new modems (both ADSL2 and otherwise) are starting to have routers built in but a lot of internet providers still provide modems that don't have built in routers. Usually if your modem has 1 port there's no built in router and if there's multiple ports one is built in.