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Hi
I try to set up dhcp services in a redundant manner.
We use non-public 10.0.0.0 networks (so we have enough :-)
I set up two dhcp (isc-dhcp2.b1.6) servers on two different servers:
Host1:
Has three IPs (10.0.0.1, 10.1.0.1, 10.2.0.1) and the following
dhcpd.conf:
option domain-name-servers 10.0.0.1 , 10.0.0.2;
shared-network ZRH {
subnet 10.1.0.0 netmask 255.255.0.0 {
option routers 10.1.0.3;
range 10.1.0.32 10.1.0.254;
}
}
shared-network GE {
subnet 10.3.0.0 netmask 255.255.0.0 {
option routers 10.3.0.3;
range 10.3.0.32 10.3.0.254;
}
}
shared-network BARINS {
subnet 10.5.0.0 netmask 255.255.0.0 {
option routers 10.5.0.3;
range 10.5.0.32 10.5.0.254;
}
}
Host 2:
Has the three IPs 10.0.0.2, 10.1.0.2 and 10.2.0.2 and the following
dhpcd.conf:
option domain-name-servers 10.0.0.1 , 10.0.0.2;
shared-network ZRH {
subnet 10.2.0.0 netmask 255.255.0.0 {
option routers 10.2.0.3;
range 10.2.0.32 10.2.0.254;
}
}
shared-network GE {
subnet 10.4.0.0 netmask 255.255.0.0 {
option routers 10.4.0.3;
range 10.4.0.32 10.4.0.254;
}
}
shared-network BARINS {
subnet 10.6.0.0 netmask 255.255.0.0 {
option routers 10.6.0.3;
range 10.6.0.32 10.6.0.254;
}
}
The intention is, that each dhcp server gives out leases from a
different
set of IP addresses (so as to avoid conflicts when a server dies).
The two servers are on the same subnet. When one of the two servers is
running, everthing works fine, but when both of them are running, they
don't give out leases anymore (win 95 clients).
Anyone any idea on how to fix this problem? Because dhcp service are
quite essential here, we really want to have redundancy.
Many thanks,
Reto Burkhalter
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