The IPv6 Fragmentation Process
The actual mechanics of fragmentation in IPv6 are similar to those in IPv4, with the added complication that extension headers must be handled carefully. For purposes of fragmentation, IPv6 datagrams are broken into the following two pieces:
Unfragmentable Part This includes the main header of the original datagram, as well as any extension headers that need to be present in each fragment. This means the main header, and any of the following headers, if present: Hop-By-Hop Options, Destination Options (for those options to be processed by devices along a route), and Routing.
Fragmentable Part This includes the data portion of the datagram, along with the other extension headers, if present—Authentication Header, Encapsulating ...
Get TCP/IP Guide now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
