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Old 02-12-2008, 11:56 AM   #1
sat2phant
LQ Newbie
 
Registered: Feb 2008
Posts: 1

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Question ics dynamic dns and dhcp configuration problem


Hi.

I've been searching on this forum for a solution to my problem but I couldn't find any so I hope you could help me with a small problem.

I have setup a linux server with ics bind 9 and dhcp server on the same server. My problem is that I have a 23bit mask in one of the networks and it doesn't look like it works properly. I have a network with 10.212.10.0/23. It semes like the dhcp server is working properly since it's giving me addresses in both 10.212.10 and 10.212.11. The dynamic dns works on 11.212.10.in-addr.apra. but not on 10.212.10.in-addr.arapa. And I can't manually add addresses refering to the 10.212.10 net.

dhcpd.conf:
option domain-name "ped.local";
option domain-name-servers 10.212.10.20;
option dhcp-parameter-request-list 60;
option vendor-class-identifier "PXEClient";
max-lease-time 7200;
ddns-update-style interim;
ignore client-updates;
include "/etc/named.keys";
authoritative;
# students
subnet 10.212.10.0 netmask 255.255.254.0 {
range 10.212.10.60 10.212.10.254;
range 10.212.11.1 10.212.11.250;
option routers 10.212.10.1;
zone myzone.local. { primary 127.0.0.1; key DHCP_UPDATER; }
zone 10.212.10.in-addr.arpa. { primary 127.0.0.1; key DHCP_UPDATER; }
zone 11.212.10.in-addr.arpa. { primary 127.0.0.1; key DHCP_UPDATER; }
}
# admins
subnet 10.211.100.0 netmask 255.255.255.0 {
range 10.211.100.60 10.211.100.250;
option routers 10.211.100.1;
zone myzone.local. { primary 127.0.0.1; key DHCP_UPDATER; }
zone 100.211.10.in-addr.arpa. { primary 127.0.0.1; key DHCP_UPDATER; }
}

named.conf:
options {
directory "/var/lib/named";
forwarders {
10.212.1.10;
};
};

include "/etc/named.keys";
zone "myzone.local" {
type master;
file "/var/lib/named/dyn/myzone.local.zone";
allow-update { key DHCP_UPDATER; };
};
zone "100.211.10.in-addr.arpa" {
type master;
file "/var/lib/named/dyn/10.211.100.zone";
allow-update { key DHCP_UPDATER; };
};
zone "10.212.10.in-addr.arpa" {
type master;
file "/var/lib/named/dyn/10.212.10.zone";
allow-update { key DHCP_UPDATER; };
};
zone "11.212.10.in-addr.arpa" {
type master;
file "/var/lib/named/dyn/11.212.10.zone";
allow-update { key DHCP_UPDATER; };
};

I'm not even sure if this is the correct setup or not, but I couldn't find any info on dns config on how to set it up for a 23 bit mask. Everything works perfect if I use a 24 bit mask in the 10.212.10.x net.

Anyone out there who can point a finger to what I'm missing or doing wrong...?

Thanks...
 
  


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