When would you need this: When you connect two Cisco routers through a WAN connection, or back-to-back router setup.
Special Requirements: Both routers needs to be Cisco routers.
When would you need this: When you connect two Cisco routers through a WAN connection, or back-to-back router setup.
Special Requirements: Both routers needs to be Cisco routers.
When would you need this: When your ISP gives you dynamic IP address upon each connection or you need to configure the router to obtain its interface IP address automatically.
Special Requirements: None.
Some commands in the Cisco router configuration are just irreplaceable. The ‘show’ commands are the most widely used in Cisco routers. Here is a list of the 10 mostly used of these ‘show’ commands.
When would you need this: When you are creating a WAN link. And also when the other end of a WAN link is NOT a Cisco router. Point-to-Point Protocol can be used in synchronous, asynchoronous, HSSI, and ISDN links.
Special Requirements: None.
When would you need this: When you are using ISDN links between more than two nodes.
Special Requirements: The router should have ISDN interface(s).
When would you need this: When you plan to upgrade the IOS, plan to implement something new in the configuration, or when you need to copy the configuration from one router to the other.
Special Requirements: None.
There are few simple things that might help administrators in utilizing their time working with Cisco routers. I gathered the most important ten things, in my point of view, and wrote them down.