FreeBSD 8 as an IPv6 router

Doug Barton dougb at FreeBSD.org
Wed Dec 14 02:25:43 UTC 2011


On 12/13/2011 16:41, Hiroki Sato wrote:
>  I do not think it is a good idea that the rtadvd daemon automatically
>  splits prefixes shorter than 64 to ones with just 64.  "Which prefix
>  should be advertised" is one of things which a sysadmin must specify
>  explicitly when it receives prefixes shorter than 64 via IA-PD or
>  something, and it should match the actual subnet structure.  A simple
>  way to do so is to assign an address onto eth0, in his example, with
>  desired /64 subnet prefix from the delegated (shorter) prefix, and
>  run rtadvd with no configuration file.  This is the expected
>  scenario.  A /60 address assigned on eth0 does not work as a default
>  router address for multiple /64 subnets anyway...

+1

There are some things that can be done automatically, this isn't one of
them. The "assign an address" trick being a reasonable compromise.


Doug

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