Posts Tagged ‘Routers’
Configuring EasyVPN Between Cisco Routers
June 18th, 2011
Basically Cisco Easy VPN is usually used for Cisco easy VPN Client termination. In this post however, let’s consider the configuration of Cisco Easy VPN between two Cisco routers. Just keep in mind that an EasyVPN scenario involves an EasyVPN Server and EasyVPN Remote Clients. The basic configuration is performed on the Cisco Easy VPN Server and the configuration done on Cisco Easy VPN Remote is almost similar to the configuration done on Cisco easy VPN client.
Let’s consider an example as shown on diagram below: configure R1 as an easy VPN Remote and configure R2 as an easy VPN Server and force the traffic to flow via the VPN Tunnel between the Loopback interfaces.
Before starting the Easy VPN configuration, check the connectivity between the Loopback interfaces. For simplicity I configured default route on both routers to each other.
Now let’s start configuration. First of all configure R2 as Easy VPN Server.
R2 Configuration
!enable AAA new-model aaa new-model
!
Tags: Cisco Routers, Routers
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How to Configure Static Routing on Cisco Routers
August 16th, 2010
Cisco IOS Routers support both static and dynamic routes. In small networks (2 to 5 routers) I would suggest to configure only static routes, especially if the network is not going to change much over time. Of course dynamic routing (using dynamic routing protocols such as RIP, OSPF, EIGRP) is much more flexible and scalable (for larger networks) but gets a little bit tricky to troubleshoot in case of problems. There is also the option to mix static and dynamic routing if needed, but you need to take into consideration issues such as route redistribution (you will usually need to redistribute static routes into the dynamic protocol).
In this post I will try to illustrate static routing using a small network scenario (see picture below) and explain also some other issues related with ICMP Redirects and Cisco ASA firewall.
Network Description
From the example network above, we have a Cisco ASA firewall (ASA1) protecting our internal networks from the Internet.
Tags: Routers
Posted in Courses Memorandum | No Comments »