On 28 Jun 2009, at 00:35, Hiroki Sato wrote:
Rui Paulo <[email protected]> wrote
in <[email protected]>:
rp> On 26 Jun 2009, at 09:00, Hiroki Sato wrote:
rp> > So, I want to add the following changes:
rp> >
rp> > 1. Use per-interface ND6 flag "ifdisabled" as a flag for if it
is
rp> > IPv6-enabled or not. Set it by default.
rp>
rp> This looks okay, but "ifdisabled" seems to mean "disable the
rp> interface" instead of the actual meaning: "disable ipv6 neighbor
rp> discovery / disable ipv6 link local". Bikeshed apart, what about:
rp> # ifconfig fxp0 -nd6 (to disable ND6)
rp> # ifconfig fxp0 nd6 (to enable it)
This is actually "ifconfig fxp0 *inet6* ifdisabled". The reason why
I used this name is ndp(8) uses "disabled" and the flag constant is
named as ND6_IFF_IFDISABLED.
Oh, I didn't catch that. Makes more sense.
The "ifconfig fxp0 inet6 -nd6" is technically correct, but it sounds
rather cryptic from viewpoint that we use it as a flag to disable
IPv6. It means disabling NDP as well as marking all of the AF_INET6
addresses on that interface as IN6_IFF_TENTATIVE.
Hm, actually I do not stick to the name "ifdisabled". Is "nd6"
better?
Well, since I now understand it includes inet6 as part of the command,
I don't care whichever name gets selected.
Pick the one you prefer :-)
--
Rui Paulo
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