Add the line
ipv6 to the file
/etc/modules. This will make sure that IPv6 support is loaded into the kernel at the next boot.
Then open the file
/etc/dhcp/dhclient.conf and add an
dhcp6.domain-search, dhcp6.fqdn, dhcp6.name-servers, dhcp6.sntp-servers; as options to the request line. And just for good measure, post your hostname as the fully qualified domain by adding the line
send fqdn.fqdn = gethostname(); just after
send host-name = gethostname();.
Reboot, and you should have IPv6 DHCP running.
ifconfig or if you have a browser use test-ipv6.com. I have included the files I currently use for reference below.
option rfc3442-classless-static-routes code 121 = array of unsigned integer 8; send host-name = gethostname(); send fqdn.fqdn = gethostname(); #send dhcp-client-identifier 1:0:a0:24:ab:fb:9c; #send dhcp-lease-time 3600; #supersede domain-name "fugue.com home.vix.com"; #prepend domain-name-servers 127.0.0.1; request subnet-mask, broadcast-address, time-offset, routers, domain-name, domain-name-servers, domain-search, host-name, netbios-name-servers, netbios-scope, interface-mtu, rfc3442-classless-static-routes, ntp-servers, dhcp6.domain-search, dhcp6.fqdn, dhcp6.name-servers, dhcp6.sntp-servers; #require subnet-mask, domain-name-servers; #timeout 60; #retry 60; #reboot 10; #select-timeout 5; #initial-interval 2; #script "/etc/dhcp3/dhclient-script"; #media "-link0 -link1 -link2", "link0 link1"; #reject 188.8.131.52; # .... more commented out stuff below ....
# /etc/modules: kernel modules to load at boot time. # # This file contains the names of kernel modules that should be loaded # at boot time, one per line. Lines beginning with "#" are ignored. # Parameters can be specified after the module name. snd-bcm2835 ipv6
After enabling all this, I decided to register the IPv6 address to the hostname besje.net, but later found out that none of my mobile devices support IPv6 yet. This means the only way I can test it is with my local home network.
Update: I first thought it would work by adding an
iface eth0 inet6 dhcp line to
/etc/network/interfaces. But that gave my global IPv6 configuration as link scope some times, meaning that the connection would drop out at the point the ipv4 dhcp came along.