The current IP address scheme of 32-bit words is fast becoming inadequate. It would appear that 2 32 = 4 294 967 296 combinations of addresses should be enough for everybody, but in practice this is ...

In my last column, I explained preparing your network for IPv6 is a good idea. In this edition, we’ll peek under the hood of the IPv6 header and see how it’s put together. The IPv6 header is, ...

The purpose of the network layer is to help route messages between different local networks. Central to this layer is the concept of exclusive network addresses, where every terminal connected to the ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. After glancing at Figure 1, does it make you wonder how a data packet makes its way from the ...

In Part 1 of this article, we talked about security issues related to sending and receiving IP packets and the function of IP Security, or IPSec. We also discussed different levels of security and ...