globally accessible telnet?

I've got 5 publicly routable IP's set up on my 170 (V4R4), with 4 of
them to host web sites and one for telnet into the 400 from outside.
(actually, they're "NAT'd into my private network address scheme) I
don't have the IP's set up on a DNS server right yet, still in test, but
the 4 web sites are accessible from the outside using the IP address
rather than a name.

My question is:  How can I limit telnet access to only one of the 5 ip
addresses?  As it stands now, all 5 are accessible via telnet.  This is
5 times more exposure than I want and I'd like to limit telnet to only
the address(es) I want to leave open to telnet.  I haven't found any
reference to tying the telnet server to a single IP.

Also, anyone know where to get one of those cutesy "this site is running
on an AS/400" gif files?  Aside from just "stealing" one, hopefully.

Thanks
--
William A.(Tony) Corbett
corbett@asresources.com
http://www.asresources.com
http://www.cbt400.com


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