December 2007
Intermediate to advanced
248 pages
8h 9m
English
Content preview from Handbook of IPv4 to IPv6 Transition
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86 n Handbook of IPv4 to IPv6 Transition
Its alignment requirement is 8n+2 to ensure that the eight-octet field
starts at a multiple-of-eight offset from the start of the enclosing header.
A complete Hop-by-Hop or Destination Options header containing
this one option would look as follows:
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Next Header | Hdr Ext Len=1 | Option Type=X |Opt Data Len=12|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 4-octet field |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ 8-octet field +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Example 2
If an option Y required three data fields, one of length four octets, one
of leng ...
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