IP Addressing

Article (2)

Routing: Five common, easily avoided errors
Router configuration errors don''t have to take down your network. Learn five common routing mistakes -- and how to avoid them -- in this tip.
IPv6: Friend or foe?
Eventually, IPv6 will become reality and companies will need to consider deployment. But, until then, experts advise companies to start planning and preparing to ease the inevitable transition.

Tips (6)

How to subnet: Subnetting calculations and shortcuts
Learn how subnetting works in this tip and quiz on how to calculate a subnet mask. IP address classes and bit values of octets are explained in detail.
Network summarization -- Supernetting and wildcard masks
Supernetting allows one routing table entry to represent an aggregation of networks. Network engineers need to understand supernetting, how to read routes received from other providers and how to create an access list that references these multiple networks in a single summarized statement. In this tip, you'll learn more about the IP addressing-related topics of network summarization, supernetting and wildcard masks.
Access your ISA and Exchange Server from outside the office
Learn how to configure your Linksys router so that you can access your ISA and Exchange Server from outside the office in this expert response by Lisa Phifer.
Troubleshoot networks with the pathping command
You can troubleshoot networks with the pathping command, which works like a combination of ping and tracert.
Connecting ISDN PRI to a VPN via a Cisco AS5350
Sudhanshu Gupta examines how to connect an ISDN PRI to a VPN using a Cisco AS5350.
How are IP addresses and subnet masks calculated?
Learn how to calculate IP addresses and subnet masks in this Q&A with Chris Partsenidis.

General Content (1)

Which routing protocol? Selecting for optimal routing
One of the toughest questions facing network engineers is which routing protocol to use. Each has its strengths, and each works better with some network designs than with others. In this excerpt from Optimal Routing Design the authors discuss which routing protocol is best for your particular network.

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