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I think you need to check debug information
/usr/sbin/dhcpd -d ( on both machine)
then you can see some information on dhcp.
I think the probem cam from DHCPNAK.
if you send that log then someone help.
Mansu
$)C> -----?x:; 8^=CAv-----
> :83= ;g6w: Reto Burkhalter [mailto:[EMAIL PROTECTED]]
> :83= 3/B%: Thursday, March 18, 1999 1:35 AM
> 9^4B ;g6w: [EMAIL PROTECTED]
> A&8q: Redundant dhcp services
>
>
> *** From dhcp-server -- To unsubscribe, see the end of
> this message. ***
>
> 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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