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Internet Sharing and Port Forwarding


Dear All,

We have purchased a Cisco 2901 Router, I need to configure Internet Sharing and Port Forwarding on this device. My question is  

1. Default route is enough to configure the internet sharing or I need to configure NAT Overload along with Default Route.

2. Beside that I need to configure/enable Port Forwarding option on public IP so that external clients can communicate to Application Server located in LAN, does internet sharing with NAT Overload and Port forwarding work together.

Thanks in Advance.

2 Replies 2

Philip D'Ath
VIP Alumni
VIP Alumni

1. Assuming you have one public IPv4 address you want to share among several users then you will need to use NAT overload.

2. You can use NAT overload and port forwarding at the same time.

I have a config wizard for a Cisco 897.  Not the same as your router, but it can create the majority of the config you are needing.

Thanks for your response,  I have gone through your config wizard, it was helpful, will get back to you after implementing into our network.

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