Exposed Host

[Chad Morgan <chad@chadmorgan.com>]

I have a box with a 2.2.17 kernel doing ip masquerading. I've figured out
how to foward individual ports of the external address to individual ports
on an internal address but how can I forward all traffic on all ports from
the external address to one of the internal addresses?

I know this isn't very secure, but I'm not very concerend about security
becuase it isn't our responsibility in this case. We manage a small office
building of executive suites and provide high speed internet for our
tenants on the DSL line. One of our tenants would like a public address. In
this case it is his responsibility to secure his system.
Could there be a risk to some of the other tenants by a cracker getting
access to their systems through the host that as all traffic forwarded to
it? But, I guess if there was they don't really understand the different
between private and public ip addresses and should consider themselves
exposed anyway and security is again there responsibility since we haven't
made any guarantees about their security.

Anyway, if this is possible using impasqadm or if someone has a better
idea, I'd appreciate some advice.

Thanks

Chad Morgan