dhclient -6 and router advertisement M/O bits
adrian mamolea
adrian_mamolea at verizon.net
Wed Jan 27 15:48:17 UTC 2010
Dear All,
For IPv6, RFC 4861, section 4.2, defines RA M and O bits as follows:
>>>>>>>>>>>
M 1-bit "Managed address configuration" flag. When
set, it indicates that addresses are available via
Dynamic Host Configuration Protocol [DHCPv6
<http://tools.ietf.org/html/rfc4861#ref-DHCPv6>].
If the M flag is set, the O flag is redundant and
can be ignored because DHCPv6 will return all
available configuration information.
O 1-bit "Other configuration" flag. When set, it
indicates that other configuration information is
available via DHCPv6. Examples of such information
are DNS-related information or information on other
servers within the network.
Note: If neither M nor O flags are set, this indicates that no
information is available via DHCPv6.
<<<<<<<<<<<
The statement above seems to define an implicit relationship
between the processing of the RA and starting and configuring
dhclient. (I say implicit because I don't see any MUST or SHOULD
to make it a requirement).
Using Linux and ISC DHCP (currently I use Linux kernel 2.6.21 and
dhclient 4.1.1), is there a way to implement the behavior described
in the quote above from RFC 4861?
Thanks,
Adrian
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