10-06-2008 03:57 PM - edited 03-06-2019 01:47 AM
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
10-06-2008 04:15 PM
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
10-06-2008 04:24 PM
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.
03-24-2009 03:06 AM
try
no ip nat service skinny tcp port 2000
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