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New Member

Routing problem with 1 remote IP with NAT

I just upgraded from a CISCO2514 to a Cisco 2611XM for my internet router.

Everything is working fine except 1 remote host (FTP server) that I cannot connect to.

If I telnet to that server from the router itself, I am fine, but not from remote hosts behind the router

From the Router:

gw#telnet xx.xx.97.14 2000

Trying xx.xx.97.14, 2000 ... Open

220 xxxxxxxx (glFTPd 2.01 Linux+TLS) ready.

From a telnet prompt on a pc:

patrick@desktop:~$ telnet xx.xx.97.14 2000

Trying xx.xx.97.14...

Connected to xx.xx.97.14.

Escape character is '^]'.

< message from remote server never appearing >

If i place my 2514 back in place ...i am fine..

Any ideas on what would be causing the issue? I attached the config's of both routers

3 REPLIES

Re: Routing problem with 1 remote IP with NAT

try to make ur nat looks like

ip nat inside source static tcp 192.168.2.3 20 interface FastEthernet0/1 20

ip nat inside source static tcp 192.168.2.3 21 interface FastEthernet0/1 21

then reload the router then try it

if worked then the problem with maped ports

good luck

New Member

Re: Routing problem with 1 remote IP with NAT

the issue is not others trying to access my FTP server.

It is me trying to access a specific remote FTP server running on port 2000.

As part of my troubleshooting, i try to telnet to the remote server on port 2000 from a PC behind my NAT...no success

Then I try to telnet to the remote server on port 2000 from the router itself==success

it is only a problem with this specific remote host.

New Member

Re: Routing problem with 1 remote IP with NAT

try

no ip nat service skinny tcp port 2000

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