Brett Lee wrote:
Hello -
Am using FreeBSD 6.3 as a dhcp6 client, trying to get DDNSv6 operational
in this environment. When I execute 'dhcp6c -d lnc0' from the command
line, the following messages are logged on the (ISC 4.1.0p1) DHCP6 server:
Solicit message from fe80::20c:29ff:fef3:a5de port 546, transaction ID
0xB3D95D
Unable to pick client prefix: no IPv6 prefix pools on this shared network
Sending Advertise to fe80::20c:29ff:fef3:a5de port 546
Am confused by the message above, in particular the "prefix pools", as
this host obtains the "global address" prefix and configures both link
local and global addresses via SLAAC. Surely this can't be the same
prefix.
Equally confusing is that the Solaris hosts on this LAN have no problem
getting v6 addresses via this DHCP server, and there seems to be plenty
of free leases available.
Does FreeBSD 6.3 DHCP6 client need a "prefix", or a "pool" of them to be
delivered by the server? Obviously I'm a little bit confused :) and am
thinking the problem is with the dhcpd.conf file. Hoping for some
clarification or direction. Configs are below.
Thanks for your guidance/suggestions! -Brett
Client:
[r...@freebsdvm ~]# ifconfig -a
lnc0: flags=108843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,NEEDSGIANT>
mtu 1500
inet6 fe80::20c:29ff:fef3:a5de%lnc0 prefixlen 64 scopeid 0x1
inet 192.168.1.94 netmask 0xffffff00 broadcast 192.168.1.255
inet6 2bad:0:564:1:20c:29ff:fef3:a5de prefixlen 64 autoconf
ether 00:0c:29:f3:a5:de
plip0: flags=108810<POINTOPOINT,SIMPLEX,MULTICAST,NEEDSGIANT> mtu 1500
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
inet 127.0.0.1 netmask 0xff000000
[r...@freebsdvm ~]# grep -v '#' /usr/local/etc/dhcp6c.conf
interface lnc0 {
send ia-pd 0;
};
id-assoc pd {
prefix-interface lnc0 {
sla-id 1;
};
};
[r...@freebsdvm ~]#
Server:
[r...@solaris10u4sparc named]# grep iaaddr /var/db/dhcpd6.leases | sort
| uniq
iaaddr 2bad:0:564:1::12 {
iaaddr 2bad:0:564:1::18 {
iaaddr 2bad:0:564:1::19 {
iaaddr 2bad:0:564:2::18 {
iaaddr 2bad:0:564:2::19 {
iaaddr 2bad:0:564:3::18 {
[r...@solaris10u4sparc named]# grep -v '#' /etc/dhcpd.conf | egrep
'[A-Z]|[a-z]|[0-9]'
authoritative;
include "/etc/rndc.key";
ddns-update-style interim;
ddns-domainname "ipv6.apevt.local";
ddns-rev-domainname "in-addr.arpa";
ignore client-updates;
zone ipv6.apevt.local. {
primary 192.168.1.23;
key "rndc-key";
log-facility local6;
min-lease-time 60;
default-lease-time 3600;
max-lease-time 43200;
option domain-name "ipv6.apevt.local";
option domain-name-servers 192.168.1.254, 192.168.1.23;
option dhcp.domain-search "ipv6.apevt.local, apevt.local";
option dhcp6.domain-search "ipv6.apevt.local, apevt.local";
option dhcp6.name-servers 2bad:0:564:1:203:baff:fee8:36f2,
2bad:0:564:2:203:baff:fee8:36f3, 2bad:0:564:3:203:baff:fee8:36f4;
subnet6 2bad:0000:0564:0001::/64 {
allow unknown-clients;
min-lease-time 60;
default-lease-time 60;
max-lease-time 60;
range6 2bad:0000:0564:0001::10 2bad:0000:0564:0001::19;
subnet6 2bad:0000:0564:0002::/64 {
allow unknown-clients;
min-lease-time 60;
default-lease-time 60;
max-lease-time 60;
range6 2bad:0000:0564:0002::10 2bad:0000:0564:0002::19;
subnet6 2bad:0000:0564:0003::/64 {
allow unknown-clients;
min-lease-time 60;
default-lease-time 60;
max-lease-time 60;
range6 2bad:0000:0564:0003::10 2bad:0000:0564:0003::19;
[r...@solaris10u4sparc named]#
Seems I misconfigured dhcp6c.conf to request a pool of addresses for
delivery downstream instead of a single stateful address. Now using the
current FreeBSD, 8.0-RELEASE, with dhcp6c.conf setup as seen below:
interface le0 {
send ia-na 0; # request stateful address
request domain-name;
request domain-name-servers;
}
id-assoc na 0 {
}
It works. On to DDNSv6. -Brett
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