Why changing the password on your router is a must thing to do.

Why changing the password on your router is a must thing to do.
First lets look at how a router works. A router is a piece of equipment which takes packets (packages of data), and sends them to where they are trying to go. A simple analogy would be a traffic policeman at a busy intersection. Cars want to go through the intersection, but without the policeman, there could be accidents. So the policeman takes control of the intersection, controls when and where the cars can go, and makes sure that no accidents happen. The policeman would be our router, each road which meets at the intersection would be one of the networks connected to the router, and the cars are the packets. Now lets take this analogy a bit further. The policeman spots someone he suspects of being a criminal, a bank robbber for example. Fortunately, the policeman is in control of the road leading to the bank! So the policeman then stops the bank robber's car from using the road to the bank, and saves the bank from robbery. In computer science terms, this is known as a firewall, and stops hackers from entering some networks. But what if the bank robber's knew of a different road to take and knew the security code to the bank? They could park out back of the bank, disarm the alarm and walk wright in. The same is true for routers. All some one needs is your IP address and the default password to the router on your network. Your router has two IP addresses. the one that the internet can see is the one that your internet provider gave you. The router then assigns an IP to each machine on the network. this IP can not be seen from the internet. So how dose bad guys or girls get this info? This info is easy to find, a pice of spyware could pick it up or just look at the header of an email that you sent or received. A bad guy only needs to type the IP address provided by your internet service in the address bar and a box will appear. most of the time it will tell you what router you are connecting to. With that info all you need is the default password and user name and BINGO your in.
The intruder can now set your router up any way he or she want's. This also means that they could gain access to your computer/s.
By the way, a list of default names and passwords can be found at http://www.phenoelit.de/dpl/dpl.html. I am telling you about the list for research only.
So change your password on your router and you will not only keep intruders out, you will have a grate firewall as well.