Directing static ip traffic to certain machine.

[barkershoes]

We have one machine running an application accessable remotely.

We have cisco877 router, and static ip to access the application remotely.

We recently done an update of out application software which has changed the access port/link to application.

since we update the software We can access the application internally through local ip but is not accessable through WAN with static ip, as the port no has changed.

I not having much knowledge of networking don't know what changes should be made in router so it direct the traffic of static ip to the machine running the web application, as before.

I tried looking for clue in router through its SDM Express interface, but no joy.

Any clue please!

Best Regards

[allen.hecker]

I'm guessing you have a static NAT configured on your router.

before the software upgrade, if you were able to access your application on, for example, TCP port 4444, you probably had a static NAT configuration similar to this:

ip nat inside source static tcp <> 4444 interface <> 4444

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now after the upgrade, if the new TCP port was, for example, 5555, you would need to run these commands:

no ip nat inside source static tcp <> 4444 interface <> 4444
ip nat inside source static tcp <> 5555 interface <> 5555