Hard Code your IP i.e. Give yourself a static based on the current IP range. You've got to think of how the request is being processed, you try to go to '
www.facebook.c om' or whatever hostname, the DNS server i.e. Open DNS on the router denies the request and sends you either to a denial page or to nothing at all (Usually to localhost '127.0.0.1').
Knowing this then it is just a matter of bypassing the requested DNS server to a different one i.e. your ISP assigned DNS.
Step 1. Find out your local IP range
From a command prompt, Windows Vista & 7, Start > Programs > Accessories > Run
Type in 'cmd' in the run prompt
From the command prompt type: 'ipconfig'
That will give your IP address, should be somewhere along the lines of what loaded mentioned i.e. 192.168.1.1-255 or possibly 192.168.254.1-255, 99% of the time it's going to be a class C subnet. i.e. 255.255.255.0
Step 2 (Alternate 1). Logging onto the router/gateway
Now that we have our IP range we can logon to the router/gateway
If your IP range is 192.168.1.1-255 try logging onto the router which is usually the first octet in the IP range i.e.
http://192.168.1.1
Dollars to donuts your father didn't change the admin password, try Username: admin, Password: admin or no password, it's all dependent on the model
Once logged into the router you can wreak all kinds of havok, i.e. change whatever you need to if you have the experience... If you do not see below
Step 2 (Alternate 2). Changing you DNS manually
Run command prompt as seen in Step 1 except this time add the following switch to the end of the command '/all' so the command should look like 'ipconfig /all'
This will give you your complete IP configuration information, i.e. IP Address, Gateway, and DNS that is assigned from the router
Windows XP, Control Panel, Classic View, Network Connections, Local Area Connection, Properties, TCP/IP Settings, Set your IP address as the current one you have that you got from the command prompt i.e. 192.168.1.x
Set your gateway as your router's IP address i.e. 192.168.1.1
Set your DNS to a Free DNS server such as google's Public DNS project: 8.8.8.8 or 8.8.4.4
Close and Save all Windows and try to surf using the Static IP settings.
Step 2 (Alternate 3) Browse blocked sites by IP Address
Naturally DNS blocking does not allow your system to resolve DNS host names to IP's i.e. Pinging
www.facebook.c om to it's IP address of 66.220.153.11 will not work on your system because resolving is blocked BUT if you knew the IP then you could try taking that IP into a browser to see if it will resolve.
In other words, plug in
http://66.220.153.11 into an internet browser and see if it will let your browse to Facebook.
Let me know of any questions.
Somebody best +Rep me for letting loose the IT Demon inside of me as well.