No subject

Oct 15 00:58:42 ip-srv-4 dhcpd: DHCPDISCOVER from 00:0b:ac:e6:b3:c8 via
137.138.194.65: peer holds all free leases

So here is the problem.....when this situation occurs NO OFFER WAS SENT
TO THE CLIENT :-(
I do not understand why the primary has tried to communicate with the
failover server on receiving a DISCOVER message.  IMO the load balancing
should only occur AFTER a DHCPACK has been received.

I conclude that there are two choices.

(1) Roll-back to rc11.

(2) Play with MCLT as suggested in the DHCP Handbook 2nd ed.  The  HA
part of the conf file looks like this:

  max-response-delay 60;
  max-unacked-updates 10;
  mclt 600;
  split 128;
  load balance max seconds 3;

and the global options in the conf file are as follows:

not authoritative; #by default, see PB services below
allow bootp;
ddns-update-style none;
deny duplicates;
default-lease-time 1800; # for all devices but network devices
max-lease-time 3600;

I believe the MCLT and lease-times are configured correctly, therefore I
plan to roll-back to rc11, unless anyone can give me a good reason to do
otherwise.

The total conf file is 30,000 lines (26,000 lines used in host
statements), therefore too large to send in an email.
Both deny/allow- unknown/known clients and client-classing (blocking)
are used in the config.

I would be pleased to provide the maintainer with the configurations,
leases files, diagrams and trace files if they would be of any help.

If anyone has any useful suggestions about why the above is happening
then I would be very pleased to hear about your experiences with rc12.

Thanks,

Nick




Nick Garfield
IT/CS Campus Networking Section
CERN
Geneva
Switzerland

Tel:+41 22 76 74 533=20