DHCP servers using failover

[Hendrickx Stijn]

...
   address 10.16.1.126;
   port 647;
   peer address 10.16.1.127;
   port 647;                  -> change this to "peer port 647;"
...
   address 10.16.1.127;
   port 647;
   peer address 10.16.1.126;
   port 647;                  -> change this to "peer port 647;"
...

Greets,

Stijn

 
 


-----Oorspronkelijk bericht-----
Van: dhcp-users-bounces at lists.isc.org [mailto:dhcp-users-bounces at lists.isc.org] Namens Marc Werner
Verzonden: dinsdag 25 augustus 2009 11:02
Aan: dhcp-users at lists.isc.org
Onderwerp: DHCP servers using failover

Hello folks,

I'm trying to configure two DHCP servers using the failover option. Both
servers are running RHEL5 with the isc-dhcpd-V3.0.5-RedHat. The system
clocks are synchronized.

Here are the config number one:

###
failover peer "dhcp-failover2" {
   primary;
   address 10.16.1.126;
   port 647;
   peer address 10.16.1.127;
   port 647;
   max-response-delay 30;
   max-unacked-updates 10;
   load balance max seconds 3;
   mclt 1800;
   split 128;
}

 pool {
      failover peer "dhcp-failover2"; 
      deny dynamic bootp clients;
      range 10.xx.xx.1 10.xx.xx.30;
      allow members of "xyz"; 
   }

###

....and number two:

###
failover peer "dhcp-failover" {
   secondary;
   address 10.16.1.127;
   port 647;
   peer address 10.16.1.126;
   port 647;
   max-response-delay 30;
   max-unacked-updates 10;
   load balance max seconds 3;
}
 
  pool {
      failover peer "dhcp-failover"; 
      deny dynamic bootp clients;
      range 10.xx.xx.1 10.xx.xx.30;
      allow members of "xyz";  
   }
###

/var/log/messages says: 

failover peer dhcp-failover: I move from recover to startup
dhcpd: dhcpd startup succeeded
dhcpd: failover peer dhcp-failover: I move from startup to recover

I expected the servers to start synchronisation after the mclt (half an hour). But nothing happens. Not even an error message (e.g. timeout).
Did anyone had the problem and may provide me some information about what went wrong?
Many thanks in advance!

Kind regards
M.Werner

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