video lecture of Network Layer: Inter networking and IP part 2

Lecture13(Network Layer: Inter networking, IP part2)this lecture cover topic like:
The Internet Network layer,layerroutingtableHost, router network layer
functions,IP Addressing: introduction,What’s a network according
to IP address?,How to find  the networks from IP address ?,
IP Addresses,different class of IP address,CIDR: Classless Inter
Domain Routing etcDownload now..