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[#1474] Changed I-D for RFC 8925

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Francis Dupont
2020-10-20 08:52:28 +02:00
parent 3a39cc03c3
commit d2e706af6b
1 changed files with 4 additions and 3 deletions
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7
doc/sphinx/arm/dhcp4-srv.rst
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@@ -3943,14 +3943,15 @@ IPv6-only Preferred Networks
----------------------------
A `RFC8925 <https://tools.ietf.org/html/rfc8925>`_ recently published by IETF
specifies a DHCPv4 option to indicate that a host supports an IPv6-only mode and is willing to
forgo obtaining an IPv4 address if the network provides IPv6 connectivity. The general idea is that
specifies a DHCPv4 option to indicate that a host supports an
IPv6-only mode and is willing to forgot obtaining an IPv4 address if
the network provides IPv6 connectivity. The general idea is that
a network administrator can enable this option to signal to compatible dual-stack devices that the
IPv6 connectivity is available and they can shut down their IPv4 stack. The new option
`v6-only-preferred` content is a 32 bit unsigned integer and specifies for how long the device
should disable its stack for. The value is expressed in seconds.
The draft mentions V6ONLY_WAIT timer. This is implemented in Kea by setting the value of
The RFC mentions V6ONLY_WAIT timer. This is implemented in Kea by setting the value of
v6-only-preferred option. This follows the usual practice of setting options. You can specify the
option value on pool, subnet, shared network, global levels or even specify it in host reservations.