Problem with dhcpd6 configuration
scott_stone at trendmicro.com
scott_stone at trendmicro.com
Mon Oct 3 20:51:42 UTC 2011
I'm trying to serve DHCPv6 clients on several subnets - but I will settle for getting the server to even start, to begin with.
Servers are running CentOS 5.6 with a built-from-source ISC-DHCPD 4.2.2 with standard options.
Here's the interface configuration (the 'fffa' and 'fffb' addresses were added by us, the 'scope link' and 'scope global dynamic' seem to be getting auto-set).
6: eth4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:26:9e:58:48:30 brd ff:ff:ff:ff:ff:ff
inet 10.31.55.241/24 brd 10.31.55.255 scope global eth4
inet 10.31.55.244/24 brd 10.31.55.255 scope global secondary eth4:0
inet6 2620:101:4037:3b05:226:9eff:fe58:4830/64 scope global dynamic
valid_lft 2591861sec preferred_lft 604661sec
inet6 2620:101:4037:3b05:fffa::1/64 scope global
valid_lft forever preferred_lft forever
inet6 2620:101:4037:3b05:fffb::1/64 scope global
valid_lft forever preferred_lft forever
inet6 fe80::226:9eff:fe58:4830/64 scope link
valid_lft forever preferred_lft forever
Here's the dhcpd6.conf:
ddns-update-style none;
ddns-updates off;
allow booting;
allow bootp;
authoritative;
log-facility local6;
default-lease-time 604800;
max-lease-time 604800;
min-lease-time 604800;
# VLAN1055
subnet6 2620:101:4037:3B05::/64 {
pool {
default-lease-time 3600;
min-lease-time 60;
max-lease-time 3600;
range6 2620:101:4037:3B05:FFFF::1 2620:101:4037:3B05:FFFF::FFFF;
}
}
And here's what I get when I try to start dhcpd6:
Oct 3 20:31:02 dcs-ipmaster1 dhcpd: No subnet6 declaration for eth4 (2620:101:4037:3b05:226:9eff:fe58:4830).
Oct 3 20:31:02 dcs-ipmaster1 dhcpd: ** Ignoring requests on eth4. If this is not what
Oct 3 20:31:02 dcs-ipmaster1 dhcpd: you want, please write a subnet6 declaration
Oct 3 20:31:02 dcs-ipmaster1 dhcpd: in your dhcpd.conf file for the network segment
Oct 3 20:31:02 dcs-ipmaster1 dhcpd: to which interface eth4 is attached. **
and if I temporarily "ip addr del" that ipv6 address, it gives me the same error but complains about the 'scope local' address as well. I've tried searching all over the web for a solution to this but I can't seem to figure out what's going wrong. The now-deprecated dhcp6s seemed to work OK with a similar configuration but I'm at a loss as to what to try next here. Thanks in advance for your help.
====================
Scott Stone <scott_stone at trendmicro.com>
Manager, DCS-RD
Trend Micro, Inc. http://www.trendmicro.com
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