You can't bypass internet filtering without using a proxy.It is simple.
Good things is that they can block a lot sites and ip addresses but you will be always one step for if you know how to find new proxy server and new proxy sites.And it is not difficult at all.
[URL="http://www.proxyblind.org"]Free Proxy[/URL] | [URL="http://www.proxyserverprivacy.com"]Proxy Server[/URL] | [URL="http://www.ipaddresslocation.org"]Ip Address[/URL] | [URL="http://www.proxyblind.org/list.shtml"]Proxy List[/URL] | [URL="http://www.bearplanet.org"]Polar Bear[/URL]