TCP / UDP port forwarding troubleshoot

[khan1234]

hello everyone!

i need to know how to check tcp / udp  ports. i have open some ports for some device connected remotely but now  i am stuck. Can any one support me how to check it on router 887 VAW. please this is urgent

[omz]

Hi 

try these - 

show tcp brief

show ip tcp brief

show ip socket

[khan1234]

in putty this commands i gave  me error. mean not working

[khan1234]

and please tell me one thing more . how to take backup of my this router using putty 

[omz]

You can also use telnet to check for open port if you know the port number

from putty/shell - telnet to the port you want to see if its open 

[khan1234]

sir please here is the attachment which i want to open these ports on my router

[omz]

these are nat rules .. you dont need to open ports on the router to make these work

have you configured these? what is the issue?

have you configured ip nat inside/outside on the interfaces?

[khan1234]

i have configure it on interface . but still i am not know that my port is open or not

[khan1234]

sir how to check it. is there is any show command for it

[khan1234]

yes i have configure ip nat inside/outside on the interface

[omz]

show ip nat translations 

use putty and telnet to the ip and port you want test if its open.

or you can use a port scanner like nmap to see what ports are open