configure cisco router NAT dynamic & static

I have a Cisco 831 router that works fine for getting my LAN onto the internet via my cable internet connection. It runs cisco software 12.3

I started setting it up via Hyperterminal/console cable and Cisco SDM 2.3.

It seems to be setup for dynamic NAT (I think) so far, but I need help getting Static NAT setup. Since I have several static IP's from my ISP and I want one public IP to point to the private IP of my email server, and another public IP to point to a different private IP that runs my web server.

I'm at the stage where I hook up the Cisco 831 and it gets my LAN on the internet, but I had tried adding some static NAT entries, and the computers on my LAN that I had made static entries get a error sorta like "there is another device on the network with this ip" when the cisco 831 is on.

Maybe I could send you my 'running-config' and you could tell me from what I have so far what I need, what I don't need.


Kemahiran: Sistem Admin

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Tentang Majikan:
( 3 ulasan ) madison, United States

ID Projek: #336552

Dianugerahkan kepada:


i can do that

$30 USD dalam sehari
(1 Ulasan)

8 pekerja bebas membida secara purata $113 untuk pekerjaan ini


I can help you with that. Please see PM and profile.

$190 USD dalam sehari
(0 Ulasan)

There are many ip nat inside definition you set there. It is in-efficient. You better use access-list for presenting rights for these host, and denying another one. Also, there is no port definitions on which port you Lagi

$200 USD dalam 0 hari
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Creating PAT for your Mail and Web server, rest will use DNAT.

$30 USD dalam sehari
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I can configure the router and servers for static IP addresses.

$100 USD dalam sehari
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Can setup your router, for example we can make the next: you need to select 2 ip address for mail server and http server, then remove all static translation for your local network computers,create nat pool there ll be Lagi

$50 USD dalam sehari
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• Brainbench certificate of “Cisco Network Support” • Cisco 800, 2600, 2800, 3800 series, Catalist 2900, 3500 series o ipsec, VPN o Cisco VoIP o VLAN, Trunks o Frame Relay, MPLS o RIP, BGP o CCNA in pro Lagi

$100 USD dalam 2 hari
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If you only have two hosts that you want to allow then your config is way too long for that type of setup. Your requirements are not that advanced. So this job should be quick fast and easy. Just get your particular re Lagi

$200 USD dalam sehari
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