Randy's Work Blog

With the generous help of Sato san, I managed to get IPv6 back working on my Tokyo home Soekris gateway to IIJ.

This is the simple view, pretty much focused on IPv4

               .-------------------------.
               |                         |
               |                b --wlan0|
               |                r        | 192.168.0.0/24
    WAN IIJ    |                i --- vr1| LAN hosts,
    PPP/NAT ---|vr0[PPPoE]tun0--d        | DHCP Clients
210.138.216.50 |                g --- vr2| ...
               |                e        |
               |                0 --- vr3|
               |                         |
               `-------------------------'

Here is the /etc/rc.conf

# User ppp configuration.
ppp_enable=YES
ppp_mode=dedicated
ppp_profile=iij

# IPv4 internal LAN
wlans_ath0=wlan0
create_args_wlan0="wlanmode ap mode 11g channel 11 up"
cloned_interfaces=bridge0
ifconfig_bridge0="192.168.0.1 addm vr1 addm vr2 addm vr3 addm wlan0 up"
ifconfig_vr1=up
ifconfig_vr2=up
ifconfig_vr3=up

gateway_enable=YES
hostapd_enable=YES # Run hostap daemon.

# IPv6 internal LAN
ifconfig_bridge0_ipv6="inet6 fe80::0452:fdff:fe5d:b500/64"
ifconfig_bridge0_alias0="inet6 2001:240:6a8::1/64"

# IPv6 options
ipv6_activate_all_interfaces=YES
ipv6_gateway_enable=YES
route6d_enable=YES
route6d_flags="-A 2001:240:6a8::/48,gif0 -O 2001:240:6a8::/48,gif0"
rtsold_enable=YES
rtadvd_enable=YES
rtadvd_interfaces="vr0 bridge0"
gif_interfaces=gif0
gifconfig_gif0="210.138.216.50 210.138.77.245"
ipv6_static_routes=gif
ipv6_route_gif="default -interface gif0"

and the /etc/ppp/ppp.conf

default:
set log Phase Chat LCP IPCP CCP tun command
ident user-ppp VERSION (built 2008.04.01)
disable ipv6cp

iij:
set device PPPoE:vr0
set MRU 1454 # NTT suggests this value
set MTU 1454
accept CHAP
enable lqr
add default HISADDR
nat enable yes
set authname <user>@bnf1.iij.ad.jp
set authkey <password>