From owner-freebsd-net@FreeBSD.ORG  Tue Apr 19 18:01:44 2011
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Date: Tue, 19 Apr 2011 11:01:20 -0700
From: Doug Barton <dougb@FreeBSD.org>
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Cc: freebsd-net@freebsd.org
Subject: Re: Proper way to setup IPv6 gateway on running node without reboot?
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On 4/19/2011 10:18 AM, Lev Serebryakov wrote:
> Hello, Freebsd-net.
>
>
>    I'm looking for way to setup IPv6 router config on IPv4-configured
> node without reboot.

Your best bet is actually to reboot. There are a lot of moving parts, 
and it's difficult to catch them all, especially with a gateway setup.

Meanwhile, you need to tell us what version of FreeBSD you're using, as 
IPv6 configuration is different in all 3 supported branches atm.

>    I've added to /etc/rc.conf:
>
> ipv6_enable="YES"
> ipv6_ifconfig_em0="2001:470:hhhh:1::1 prefixlen 64"
> ipv6_ifconfig_wlan0="2001:470:hhhh:2::1 prefixlen 64"

I hope that the hhhh here is a method of obfuscating the real addresses 
for this message?

> ipv6_defaultrouter="2001:470:xxxx:xxxx::2" # uplink
> rtadvd_enable="YES"
> rtadvd_interfaces="em0 wlan0"
> ipv6_gateway_enable="YES"
>
>   and run
>
> /etc/rc.d/network_ipv6 start
> /etc/rc.d/rtadvd start
>
>   Interfaces em0 and wlan0 now have static addresses, but not
> link-local automatic ones, and it seems, that rtadvd doesn't announce
> anything.

Check the ifconfig output. You're looking for the auto link-local and 
ifdisabled options. Check the ifconfig man page for what you need to 
twiddle.


hth,

Doug

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