Next header: an 8 bit field identifying the type of header that follows the IP header. Codes here are the same as those used for IPv4, but also include extension headers. Hop limit: a field equivalent ...

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, ...

Have you ever performed surgery on data packets? There are times when that may be the best way to troubleshoot and optimize your network. This edition of the Packet Professor will get you started in ...

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 ...