Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

How to open a port on firewall

I have a RV110W firewall installed. Now behind this firewall there is a server running. I need to access this server from outside of the store through a specific TCP port.

Physical connection from outside to the server is like this.

Outside -> Router -> Firewall -> Server

Router IP: 192.168.1.1

Firewall WAN IP: 192.168.1.5

Firewall LAN IP: 192.168.2.1

Firewall Gateway IP: 192.1681.1

Server IP: 192.168.2.10

The firewall is in gateway mode.

Now I forwarded a TCP port on router to firewall (192.168.1.5) and on the firewall i forwarded the same port to server (192.168.2.10).

On the server system, i opened the port on windows firewall for inbound.

This there anything I am missing?

Everyone's tags (1)
1 REPLY

Hello

Hello

your steps seems to be fine at first look, but somewhere in that chain there is probably something broken.

  • what kind of service is on that server port?
  • are you able to open connection from outside with telnet to Router WAN IP and port? example test from outside/internet:
telnet X.X.X.X YYYY

where X.X.X.X is WAN IP of Router and YYYY is port number.

You can confirm that port forwarding is working on both devices:

  • you can try to connect with computer between Router and Firewall and try that port on firewall.
  • if previous test works, then for testing purposes move server to subnet between Router and Firewall and perform connectivity test from internet.
220
Views
0
Helpful
1
Replies
CreatePlease login to create content