The prize for most correct and lucid answer goes to Jim Murray <jjm @
> I've just set up a screened host firewall system, with packet filtering
> on a cisco router.
> I thought I had allowed all outbound tcp connections, and telnet from
> inside to out works fine. However, rlogin does not work, and
> some users have voiced concern at this loss.
> Can someone please summarise how rlogin works, so I can work out
> how (and if) to enable it.
Jim Murray <jjm @
> The problem you are having is that the return connection is on a port < 1024.
> I am sure you have these ports blocked. There are two solutions.
> First is turn on the established fileter if your router supports it.
> Other is enable ports > 1000 rather than ports > 1023.
Walker Aumann <walkera @
edu>'s reply was correct,
but not quite clear enough until I read jjm's answer.
Thanks to all who replied.