One LAN interface (FastEthernet0/1) connects to the internal LAN 元/L2 switch.
We are going to discuss is a very simple topology consists of, But in this tutorial we will go through the CLI configuration method. Here is a step by step configuration example to configure a Cisco 1841 integrated service router as an Edge router with NAT and a basic IOS firewall.Īll the router comes with or able to install Cisco SDM, a graphical tool to make the configuration which is very helpful to make the configuration and monitor the device. This will reduce the cost of overall IT budget and which will ease the management also. In small Offices or branch Offices, instead of buying separate devices for edge router and Firewall we can configure the edge router as a firewall and NAT device also.
