Cisco C921 port forwarding

[matteo conti]

Hello,

I'm completely new to C921 router. I'm trying to achieve this basic configuration:

I have a PC with static IP address 192.168.216.37 connected on the WAN port of the router, and two other PCs connected through a switch on LAN1 port of the router. They also have static IPs, respectively 10.0.21.51 and 10.0.21.52, netmask 255.0.0.0 and gateway 10.0.21.1

How can I configure the router so that traffic from/to 192.168.216.37 and 10.0.21.51 is forwarded through port 8100 and traffic from/to 192.168.216.37 and 10.0.21.52 is forwarded through port 8101?

Thank you very much for any advice,

best regards

[balaji.bandi]

Where is the Traffic coming from Internally or from externally ? (or both ?) ?

what traffic you want to forward to 8100 and 8101 ?

What is the IOS code on the Router- can you post show run to look exiting ACL ?

Do you have Public IP ?

[matteo conti]

Thank you for your reply,

here is a schematic representation of the connection. Consider that this is a local network, no internet access is needed and no Public IP.

The traffic on ports 8100 and 8101 is TCP/IP.

connection scheme

[balaji.bandi]

how is your Router configured (on the WAN any ouside interface ) ? on the Lan Inside interface ?

what source IP address will access 192.168.216.30 - are they coming from your LAN switch accessing that IP ?

are you looking U-turn traffic ?

check command exmaple of ACL with NAT(if you have NAT configure) :

https://www.cisco.com/c/en/us/support/docs/ip/access-lists/26448-ACLsamples.html

[csolutions748]

To configure your C921 router to forward traffic as described:

1. Access the router's web interface.
2. Set up port forwarding rules:
   • Forward traffic from 192.168.216.37 and 10.0.21.51 to port 8100.
   • Forward traffic from 192.168.216.37 and 10.0.21.52 to port 8101.

   • https://www.creativesolutionservices.com/web-development.php