In the world of networking, most people are familiar with IPv4. These numerical labels, like 192.168.2.1, have been used to identify devices for decades and have been the primary addressing scheme ...

Some time last year, a weird thing happened in the hackerspace where this is being written. The Internet was up, and was ...

In IPv6, there is a standard way of compressing the 40 bytes of the header down to 20 or so. There is also a way to extend these IPv6 header fields for future new features (IPv4 also has header ...

If you’ve ever been configuring a router or other network device and noticed that you can set up IPv4 and IPv6, you might have wondered what happened to IPv5. Well, thanks to [Navek], you don… ...

So IPv6 avoids the situation that can happen with IPv4 where it says the total length of the IP packet is 19, while the IPv4 header alone is 20 bytes. The original definition of the Time to Live ...

The other big difference between IPv4 and IPv6 is the header. There are changes in the number and type of fields and extensions are handled in a different fashion.

When an IPv4 packet isforwarded by a router the Time-to-Live (TTL) field must be decremented,which forces the IPv4 header checksum to be recomputed; a CPU intensiveoperation. Since this field is not ...

IPv6 Header. The IPv6 header is similar to the IPv4 header. The largest changes have to do with the larger addresses, aligning fields to 64-bit boundaries and moving fragmentation to an extension ...

The IPv6 header is, surprisingly, less complicated than the IPv4 header. This is a credit to its designers, who have substantially improved functionality while reducing complexity.

The global transition from IPv4 to IPv6 has gained major traction, driven by the urgent need to accommodate a rapidly expanding number of internet-connected devices and the introduction of IPv6 ...