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How to map port on Cisco Router 831

Posted on 2004-09-03
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Last Modified: 2010-04-17
We have a cisco router 831 with V12.3 and would like to map the ftp port pointing to inside compuetr with ip 172.16.5.2. How to do that?
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Question by:blin2000
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lrmoore earned 250 total points
ID: 11977893
With a static nat command:

ip nat inside source static tcp 172.16.5.2 21 <public IP> 21 extendable

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by:mikebernhardt
ID: 11977895
It sounds like you're talking about doing a static translation with NAT. You might do a search on NAT in this topic area to get some background, and then come back with more specific questions...
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by:mikebernhardt
ID: 11977953
Is your NAT already set up at all? If not, you'll also need to specify your NAT interfaces

interface [the outside interface]
 ip nat outside

interface [the inside LAN interface]
 ip nat inside
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by:blin2000
ID: 11998535
After added ip nat inside source static tcp 172.16.5.2 21 interface ethernet 21, it works. Thank you.
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