%{+m}
###  set firewall <host:port>
   specifies your telnet proxy server if you're behind a firewall.
   leave this blank if you have a normal (direct) net connection.
   if set, this should contain the host and port of your socks v4
   proxy server.  or it starts with a '!', your sun telnet passthru
   server (this barely works, if at all -- consider using socks).
see also: set reserved-port
