i experience a different problem
am working in a lab in which am an ordinary user and i can't connect to a remote box. i think there is some other method to connect if U use a proxy.

my n/w is a samba on a linux domain and the proxy server is on a dedicated machine. if Anybody can have a hint to configure a node in a proxy for telnet

i searched on google with the link remote_access given to us but in vain