How to configure IPv6 on FreeBSD on an Online.net Dedibox
Despite Online.net supporting FreeBSD, they don’t mention it at all in their IPv6 wiki page.
After a bit of research, I found two posts about that.
The first one uses WIDE DHCPv6 (also known as KAME DHCPv6, dhcp6c or dhcp6.
Since this is the only functioning tutorial I found, I will write here the steps I did to get IPv6:
- Enable IPv6 on the console and get your DUID.
- Enable IPv6 on the NIC:
ifconfig igb0 inet6 -ifdisabled accept_rtadv up
- Transform the DUID into a binary file (needed for dhcp6c):
echo <DUID> | awk '{ gsub(":"," "); printf "0: 0a 00 %s\n", $0 }' | xxd -r > /var/db/dhcp6c_duid
- Add this in
/usr/local/etc/dhcp6c.conf:
id-assoc pd {
prefix-interface igb0 {
};
};
id-assoc na {
};
interface igb0 {
send ia-pd 0;
send ia-na 0;
};
- Now run
dhpc6cmanually or start the service:
dhcp6c -Df -c /usr/local/etc/dhcp6c.conf em0
# or
service dhcp6c restart
- You should have your public IPv6 /128 now (
2001:bc8:...).
ifconfig igb0
root@fdb:~ # ping6 -c 3 angristan.xyz
PING6(56=40+8+8 bytes) 2001:bc8:xxx::1 --> 2a01:4f8:1c1c:2cc3::bad:c0de
16 bytes from 2a01:4f8:1c1c:2cc3::bad:c0de, icmp_seq=0 hlim=55 time=21.645 ms
16 bytes from 2a01:4f8:1c1c:2cc3::bad:c0de, icmp_seq=1 hlim=55 time=22.948 ms
16 bytes from 2a01:4f8:1c1c:2cc3::bad:c0de, icmp_seq=2 hlim=55 time=21.708 ms
--- angristan.xyz ping6 statistics ---
3 packets transmitted, 3 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 21.645/22.100/22.948/0.600 ms
- Automate all of this at boot time by adding this to
/etc/rc.conf:
ifconfig_igb0_ipv6="inet6 -ifdisabled accept_rtadv up"
dhcp6c_enable="YES"
dhcp6c_interfaces="igb0"
rtsold_enable="YES"
Done!