When you see a null in the destination interface while using the show ip cache command, that means you are using a null interface as the destination interface. In the command show ip cache flow, the Dst If parameter gives the destination interface to which the adjacency is created. In the case of a value like null0 it tells that Null adjacency is created and it is formed for the Null0 interface.Some documents can be found at:
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...