All You Need to Know About HSRP and Its Configuration

Most businesses, organizations, and individuals rely on computers for various reasons. Some of these reasons include; storage, research and most importantly, communication among other reasons. In order to perform these functions, the computers have to have access to the internet. The same applies to phones. All devices with access to the internet use routers. For the internet users to have access 100 percent uptime for their network, then the use of HSPR is necessary.

What Does the Term HSRP Mean?

HSRP stands for Hot Standby Router Protocol, as https://indeni.com/blog/virtual-ips-and-hsrp/ tells usIt is Cisco-proprietary redundancy protocol or rather, a First Hop Redundancy Protocol that is used for establishing flaws in the tolerant gateway as well as redundancies and defaults for routers or interfaces. Those who are familiar with this technology are aware of the fact that more than one interface can act as a single interface if they use the same IP address. This route goes by the name of the virtual router. The address is basically the default gateway. HSRP allows the virtual router to continue exchanging status reports and messages between the different interfaces.

It is advised that all users who have devices configure to a router in an HSRP setup use the HRSP Virtual IP. What happens is that it makes sure that the physical IP is not accessed or embedded on to the routers. The reason as to why it is important to ensure the lack of access to physical IP is so as to prevent the IP from going down in an instance where the router goes down. If the IP does go down, then all the devices that have been configured to the said IP address will go down with it and worse, they will not be able to be configured to another interface. This is just one of the problems that may occur because of the nature of HSRP.

HSRP Configuration

The first step for configuration is enabling the HSRP. The purpose of configuring HSRP is to get the features to run together before you enable the HRSP group. Some of these features include; preemption features, interface tracking features, debugging, authentication and IP redundancy among others. Once you have enabled the HSRP, then you have to configure the terminal. What follows next is to type the interface number and masking the IP address for reasons explained above. There is the standby IP which in this the group number and the secondary IP which stays running and in case of failure, the standby takes over the functions it was performing. Finally, you can end the process as this is the last step of configuration.

The software you use may not be able to support all the features that you would like to apply. For this reason, you have found out the information on the features and determine the features that you can access. This protocol is designed in such a way that it can be used for several tasks; therefore, you also have to restrict it.