Dear Maintainer,
I have a dual-stack home network, with ip6 & ip4 addresses provided by dhcp from my router.
However, by default I cannot get both interfaces to come up correctly
My /etc/dhcp/dhclient.conf is
option rfc3442-classless-static-routes code 121 = array of unsigned integer 8;
interface "eth0"
{
send host-name = gethostname();
#append domain-name-servers 192.168.178.1;
#append domain-name "fritz.box";
#append domain-search "fritz.box";
#append dhcp6.name-servers 2001:470:xxxxxx; # ip removed
#append dhcp6.domain-search "fritz.box";
supersede domain-name-servers 192.168.178.1;
supersede domain-name "fritz.box";
supersede domain-search "fritz.box";
supersede dhcp6.name-servers 2001:470:xxxxxx; # ip removed
supersede dhcp6.domain-search "fritz.box";
request subnet-mask, broadcast-address, time-offset, routers,
domain-name, domain-name-servers, domain-search, host-name,
dhcp6.name-servers, dhcp6.domain-search,
netbios-name-servers, netbios-scope, interface-mtu,
rfc3442-classless-static-routes, ntp-servers;
}
in /etc/network/interfaces I have (currently)
auto eth0
iface eth0 inet dhcp
iface eth0 inet6 dhcp
autoconf 1
In the order specified, the v4 and v6 addresses comes up fine, but the ipv6 dhcp overwrites /etc/resolv.conf (ignores the supersede lines)
In the reverse order (ipv6 first) the v6 address comes up fine (apart from resolv.conf), but the v4 fails
(manually running dhclient -v -4 gives "No broadcast interfaces found - exiting")
The bugs are:
1. dhclient seems to be ignoring the supersede (and/or append) lines (at least for ipv6)
2. dhclient -4 fails when an interface is active with an ipv6 address
3. (my router sends the wrong nameserver for ipv6 - not the subject of this bug though)
For now, I have added a hook in /etc/dhcp/dhclient-exit-hooks.d/ to recreate resolv.conf using the ipv4 nameservers.
Regards,
Andrew