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doc: describe RA options for DNS configuration in ipv6.rst

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Signed-off-by: Lars Seipel <ls@slrz.net>
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Lars Seipel 2019-02-02 15:45:45 +01:00
parent 8166d84086
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doc/user/ipv6.rst
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@ -181,6 +181,45 @@ Router Advertisement
Default: don't advertise any MTU option. Default: don't advertise any MTU option.
.. index::
single: ipv6 nd rdnss ipv6address [lifetime]
single: no ipv6 nd rdnss ipv6address [lifetime]
.. clicmd:: [no] ipv6 nd rdnss ipv6address [lifetime]
Recursive DNS server address to advertise using the RDNSS (type 25) option
described in RFC8106. Can be specified more than once to advertise multiple
addresses. Note that hosts may choose to limit the number of RDNSS addresses
to track.
Optional parameter:
- ``lifetime``: the maximum time in seconds over which the specified address
may be used for domain name resolution. Value ``infinite`` represents
infinity (i.e. a value of all one bits (``0xffffffff``)). A value of 0
indicates that the address must no longer be used.
Range: ``(0-4294967295)`` Default: ``3 * ra-interval``
Default: do not emit RDNSS option
.. index::
single: ipv6 nd dnssl domain-name-suffix [lifetime]
single: no ipv6 nd dnssl domain-name-suffix [lifetime]
.. clicmd:: [no] ipv6 nd dnssl domain-name-suffix [lifetime]
Advertise DNS search list using the DNSSL (type 31) option described in
RFC8106. Specify more than once to advertise multiple domain name suffixes.
Host implementations may limit the number of honored search list entries.
Optional parameter:
- ``lifetime``: the maximum time in seconds over which the specified domain
suffix may be used in the course of name resolution. Value ``infinite``
represents infinity (i.e. a value of all one bits (``0xffffffff``)). A
value of 0 indicates that the name suffix must no longer be used.
Range: ``(0-4294967295)`` Default: ``3 * ra-interval``
Default: do not emit DNSSL option
Router Advertisement Configuration Example Router Advertisement Configuration Example
========================================== ==========================================
A small example: A small example:
@ -198,3 +237,4 @@ A small example:
- :rfc:`4861` (Neighbor Discovery for IP Version 6 (IPv6)) - :rfc:`4861` (Neighbor Discovery for IP Version 6 (IPv6))
- :rfc:`6275` (Mobility Support in IPv6) - :rfc:`6275` (Mobility Support in IPv6)
- :rfc:`4191` (Default Router Preferences and More-Specific Routes) - :rfc:`4191` (Default Router Preferences and More-Specific Routes)
- :rfc:`8106` (IPv6 Router Advertisement Options for DNS Configuration)