IPv6 configuration missunderstanding

[Hiroki Sato]

Florent Peterschmitt <florent at peterschmitt.fr> wrote
  in <518A6D5C.3030804 at peterschmitt.fr>:

fl> Hi,
fl>
fl> I want to configure IPv6 in FreeBSD 9.1-RELEASE like this :
fl>
fl> ipv6_enable=yes
fl> ipv6_activate_all_interfaces=yes
fl> ifconfig_em0_ipv6="inet6 2001:41D0:8:B81f:: prefixlen 64"
fl> -interface em0"
fl> ipv6_defaultrouter="2001:41D0:8:B8ff:ff:ff:ff:ff"

 Why the default router is not in 2001:41d0:8:b81f::/64?

fl> But at boot I have :
fl>
fl> default    fe80::264:40ff:fe3a:fac0%em0  UG          em0

 I guess this is provided by the router via Router Advertisement
 messages.

fl> And if ipv6_enable=yes is not here (although it's depreciated), no IPv6
fl> at all.

 Please remove ipv6_enable=yes and ipv6_activate_all_interfaces=yes
 unless you understand you really need them.

 I think only the following line is sufficient for your environment:

 ifconfig_em0_ipv6="inet6 2001:41d0:8:b81f::1 prefixlen 64 accept_rtadv"

-- Hiroki
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