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New Member

Port forwarding with 1841

I just bought a 1841 router with IOS 12.3 and I succesfully configured Internet access using NAT.

Now I want to redirect some ports (25, 100, 3389, etc.) to my internal mail server.

I would appreciate some help to do it, using SDM if possible.

Thank you.

2 REPLIES

Re: Port forwarding with 1841

I can help you with CLI. You need a static IP to do this.

ip nat inside source static tcp 10.10.10.1 25 x.x.x.x 25

ip nat inside source static tcp 10.10.10.1 100 x.x.x.x 100

ip nat inside source static tcp 10.10.10.1 3389 x.x.x.x 3389

x.x.x.x is public IP and 10.10.10.1 is mail server.

New Member

Re: Port forwarding with 1841

Thank you.

I will try this the next week-end.

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