Date: Sun, 23 Oct 2011 16:48:48 +0900 (JST) From: Hiroki Sato <hrs@FreeBSD.org> To: jhay@meraka.org.za Cc: dougb@FreeBSD.org, current@FreeBSD.org Subject: Re: IPv6 accept_rtadv + bfe0 Message-ID: <20111023.164848.1772538364295153252.hrs@allbsd.org> In-Reply-To: <20111022193418.GA53988@zibbi.meraka.csir.co.za> References: <4EA23C08.6060906@FreeBSD.org> <20111022.161336.1708295810836213738.hrs@allbsd.org> <20111022193418.GA53988@zibbi.meraka.csir.co.za>
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John Hay <jhay@meraka.org.za> wrote
in <20111022193418.GA53988@zibbi.meraka.csir.co.za>:
jh> I can maybe just say, I have now upgraded various machines from 7.x or
jh> 8.x to 9 and even though I have read the rc.conf manual I keep tripping
jh> on the new IPv6 rc stuff. Various being client, server and router /
jh> firewall. It looks like ipv6_prefix_IF now needs an ifconfig_IF_ipv6 =
jh> "inet6 auto_linklocal" otherwise it is ignored.
This is intentional because $ifconfig_IF_ipv6 is designed as
per-interface version of the old $ipv6_enable. I added an explicit
description about this to rc.conf(5).
jh> In the rc.conf man page, in the ifconfig_<interface>_ipv6 section, it is
jh> suggested to use ifconfig_<interface>_alias<n> for aliases, but somewhere
jh> else it says that that _alias<n> is deprecated. What would be nice is
jh> something like the ipv4_addrs_IF= variable.
$ipv6_prefix_IF is the counterpart of $ipv4_addrs_IF. It is limited
to /64 prefixes, though.
I didn't notice it said ifconfig_IF_aliasN was deprecated. Although
the man page explains the depreciation is due to a difficult behavior
of _aliasN, if it is the reason, it is easy to support multiple lines
in the variable like this:
ifconfig_em0_aliases="
inet 192.168.0.1/32
inet 192.168.0.2/32
inet 192.168.0.3/32
"
jh> The last paragraph in ifconfig_<interface>_ipv6, about "inet6 accept_rtadv"
jh> should probably be closer to the begining, with some added sentence to
jh> make it clear that it is probably what the normal client machine needs.
Moved it to just after a normal GUA configuration example in rc.conf(5).
-- Hiroki
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