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ISC Open Source Projects
Kea
Commits
80b5b1b6
Commit
80b5b1b6
authored
Dec 23, 2014
by
Marcin Siodelski
Browse files
[3554] Updated the MAC/HW addresses in DHCPv6 section in the kea-guide.
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591cbdb6
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@@ -1841,26 +1841,26 @@ should include options from the isc option space:
<section
id=
"mac-in-dhcpv6"
>
<title>
MAC/Hardware addresses in DHCPv6
</title>
<para>
MAC/hardware addesses are available in DHCPv4 messages
from the client and administrators
from the client
s
and administrators
frequently use that information to perform certain tasks, like per host
configuration, address reserveration for specific MAC addresses and other.
Unfortunately, DHCPv6 protocol does not provide any completely reliable way
to retrieve that information. To mitigate that issue a number of mechanisms
ha
s
been implemented in Kea that attempt
s
to gather that information. Each
of those mechanisms works in certain cases, but may fail in other
s. There
is no single best mechanism as they are somewhat dependent on the network
topology and the technologies used.
</para>
ha
ve
been implemented in Kea that attempt to gather that information. Each
of those mechanisms works in certain cases, but may fail in other
cases.
Whether the mechanism works or not in the particular deployment is
somewhat dependent on the network
topology and the technologies used.
</para>
<para>
Kea allows configuration which of the supported methods should be
<para>
Kea allows
for
configuration which of the supported methods should be
used and in which order. This configuration may be considered a fine tuning
of the DHCP deployment. In a typical deployment the default
value of
<command>
"any"
</command>
is
reasonable
and there
'
s no
need to
change it. This paramter is the most useful in cases
when an administrator wants to disable
certain method, e.g. if you
trust the network infrastructure
more than the information
provided by the clients
clients
themselves,
you may prefer
information provided by the relays over that
provided by the
clients. The format of this parameter is as follows:
value of
<command>
"any"
</command>
is
sufficient
and there
i
s no
need to
select specific methods. Changing the value of this parameter
is the most useful in cases
when an administrator wants to disable
certain method, e.g. if the administrator
trust
s
the network infrastructure
more than the information
provided by the clients themselves,
the
administrator may prefer
information provided by the relays over that
provided by the
clients. The format of this parameter is as follows:
<screen>
"Dhcp6": {
<userinput>
"mac-sources": [ "method1", "method2", "method3", ... ]
</userinput>
,
...
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