nsaholidays.blogg.se - december 2022

It is also recommended that the unnumbered interface points to a loopback interface since loopbacks do not fail.TACACS+ or RADIUS can use the loopback address as a source address for AAA functions and thereby reducing the administration overhead of having to add every IP address of the router to the AAA server.A loopback interface can also be used to establish a Telnet session from the console port of the device to its auxiliary port when all other interfaces are down.

You can also configure the loopback address as the Router ID for routing protocols like OSPF and BGP.

A good example is mapping a router’s loopback IP address to its DNS server address.

We would reap the following advantages and benefits of having loopback interfaces and loopback addresses in our network: Loopback addresses are not limited to the 127.0.0.0/8 block.