There is really no need to use this command these days. since it is the default behaviour. In the older days, the default behaviour was 'no ip classless' so you had to explicitly turn this on - nowadays, it's on by default.
As Paresh already explined that in new IOS codes it is enabled by default but to explain you what it does is something like this at times the router might receive packets destined for a subnet of a network that has no network default route.
To have the Cisco IOS software forward such packets to the best supernet route possible, use the ip classless global configuration command.
Question We run asr9001 with XR 6.1.3, and we have a very long delay to
login w/ SSH 1 or 2 to the device compare to IOS device. After
investigation, the there is 1s delay between the client KEXDH_INIT and
the server (XR) KEXDH_REPLY. After debug ssh serv...
Introduction The purpose of this document is to demonstrate the Open
Shortest Path First (OSPF) behavior when the V-bit (Virtual-link bit) is
present in a non-backbone area. The V-bit is signaled in Type-1 LSA only
if the router is the endpoint of one or ...
Hi, I am seeing quite a few issues with patch install and wanted to
share my experience and workaround to this. Login to admin via CLI, then
access root with the “shell” command Issue “df –h” and you’ll probably
see the following directory full or nearly ...