Can I change FTP port number in CIsco router

[sujitkr7cisco]

I what to change default FTP port 21 to ant unresrved Port or nay port . How is it possible in Cisco 1800 and 1600 router.

[Collin Clark]

Do you mean to and from the router (eg copying new IOS) or do you mean NATing through the router?

[sujitkr7cisco]

Dear Collin,

i wnat to the ftp user access remotly to the different portd ,not through default FTP port -21.which is the best and most secure.

Thanks for reply.

Regards,

Sujeet

[Collin Clark]

OK- Let's assume the server is running on port 21, but you want users to connect to 2121 for FTP. You'll need to create a NAT translation.

ip nat inside source static tcp 192.168.0.1 21 interface [public ip] 2121

Don't forget to allow TCP 2121 in your ACL.

Hope that helps.