port map

From: tom cheung (tkc9789@xxxxxxxxxxx)
Date: Tue Nov 27 2001 - 22:00:16 GMT-3

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Can someone explain how port map is used? I tried to change my telnet port
from 23 to 3333 and have the following configured:

ip port-map telnet port 3333 list 90

access-list 90 permit 172.16.0.0 0.0.255.255

But why can't I telnet to this router using port 3333?

telnet 172.16.1.1 3333
Trying 172.16.1.1, 3333 ...
% Connection refused by remote host

TIA

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