~> bp <port num 1> ~[[<port num 2> ...]]
Adds the given port numbers to the black list of ports. MLdonkey will no longer attempt connecting to servers or peers on these port(s); however, servers that use blacklisted port(s) will only be removed from server list during a periodical automatic cleanup. Cleanup can also be forced by issuing remove_old_servers command.
Port 4662 is implicitly blacklisted for servers.
> bp 9999