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[#467] Updated doc

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Francis Dupont 2023-02-11 00:37:35 +01:00
parent e08c06072e
commit 66074dba77
1 changed files with 35 additions and 2 deletions
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37
doc/sphinx/arm/dhcp4-srv.rst
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@ -3173,8 +3173,41 @@ may take precedence.
Required evaluation is also available at the shared-network and pool levels.
The order in which required classes are considered is: shared-network,
subnet, and pool, i.e. in the reverse order from the way in which ``option-data`` is
processed.
subnet, and pool, i.e. in the reverse order from the way in which
``option-data`` is processed.
.. note::
Vendor-Identifying Vendor Options are a special case: for all other
options an option is identified by its code point, ``vivco-suboptions``
(124) and ``vivso-suboptions`` (125) are identified by the pair of
code and vendor identifier. This has no visible effect for the
``vivso-suboptions`` which has for value the vendor identifier but it
is different for ``vivco-suboptions`` which has for value a record
with the vendor identifier and a binary value. For instance in:
::
"Dhcp4": {
"option-data": [
{
"name": "vivco-suboptions",
"always-send": true,
"data": "1234, 03666f6f"
},
{
"name": "vivco-suboptions",
"always-send": true,
"data": "5678, 03626172"
},
...
],
...
}
The first ``option-data`` entry does not hide as usual the second one because
vendor identifiers (1234 and 5678) are different: responses will carry
two instances of the ``vivco-suboptions`` option, each for a different vendor.
.. _dhcp4-ddns-config: