port forwarding

[antdickens]

I have experience of using cheap routers such as D Link where you configure via the browser.

I need to configure port forwarding on a cisco 800 series router.

The purpose of this is when people go to the external ip address of the router from out side of the lan, ie on the internet. i want the router to forward requests made on certain ports to a machine inside the lan.

How do i get to the configuration on cisco routers and any pointers on setting up port forwarding would be gratefully received.

Thanks in advance

Anthony

 

[wirelesspeap]

I don't know much about Cisco 800 router but this is how you do it on router running IOS:

e0/0 external interface
f1/0 internal interface (ip 192.168.1.1/24)
the host you want to forward port 3389 is 192.168.1.2

int e0/0
ip nat outside
int f1/0
ip nat inside
ip nat inside source static udp 192.168.1.2 3389 interface e0/0 3389

 

[antdickens]

So i would ftp into the router?

From the command prompt of any pc on the lan i'd type telnet 10.0.0.?

How do i find its ip address. The machines in the lan use 10.0.0.1 as a gateway but this is the ip of the server, so obviously the win2000 server must deal with sending the internet requests to the router.

From then on i use commands a above, there are no menu's i can access?

I have to forward ports 80,4550,5550,3389,3390,5066,3550 to an ip address in the lan which is 10.0.0.5

Can i do it all on one line or should i repeat the code above for each port??

Many thanks

 

[myng94]

Hey, check out the link below, it describes what you are trying to do.


Good Luck!!

http://cisco.com/en/US/tech/tk175/tk15/technologies_configuration_example09186a0080093e51.shtml