here is my solution without access to the router or firewall.... It requires extensive network c++ code, expert kernel modification and expert network disassembly.... Good luck implmeting it....

 

oh boy this would piss off colleges if students started doing this....

 

basicly, it requires iptunneling IE the computer on the school network sees an outside linux computer as a local network device (its called iptunneling)

 

Some fancing codeing and redirecting such that you get the cs server & clients to respond to each other.

 

http://img383.imageshack.us/my.php?image=csserverbehindfirewall6qx.jpg

my friends in a programming class said they do about 10 mins of actual programming, then the rest of the time, the teacher lets them play CS...hope that happens for me in the next symester

all you need is a VLAN.... if you have no access to a VLAN, then some nice router-h4x0ring will do the job. If the place in question is running a Cisco router, with version 12.3 or lower with "ip http server" enabled, you can simply use your broser to print the configuration to a page, see the login password and telnet. If its secret'ed then use the same method to erase the startup config, and reload the router, or just run the commands with URLs.

This can easily be done using ssh, and works fine with NAT Overloading.

 

As for VLANs, I have no idea what your talking about. VLANs are used on switches, to split the broadcasting domain, so broadcasts do not overwhelm a lan with a huge amount of devices. Routers, by default, already split the broadcast domain.

  RogueP2 said:

This can easily be done using ssh, and works fine with NAT Overloading.

 

As for VLANs, I have no idea what your talking about. VLANs are used on switches, to split the broadcasting domain, so broadcasts do not overwhelm a lan with a huge amount of devices. Routers, by default, already split the broadcast domain.

 

you can have a VLAN routed over a WAN connection (IE: Internet)

I think you're refering to VPNs (Virtual private networks).