message length wait: unexpected error

[Abu Abdulla alhanbali]

Hi,

i have configured two DHCP servers in failover mode. on the other
hand, i'm receiving this error repeativly if the secondary server is
down:
message length wait: unexpected error

it is only happening to me using version 4.2.0
OS is solaris 10

dhcpd.conf
*************

Default-lease-time 14400;
min-lease-time 14400;
max-lease-time 14400;

ddns-update-style none;
authoritative;
log-facility local2;

failover peer "dhcp-failover"
{
  primary;
  address 113.32.2.210;
  port 3000;
  peer address 113.32.4.210;
  peer port 3000;
  max-response-delay 30;
  max-unacked-updates 10;
  load balance max seconds 5;
  mclt 1800;
  split 128;
}

subnet 113.32.2.208 netmask 255.255.255.248 { }

# TEST
subnet 10.10.10.0 netmask 255.255.255.0
{
        option routers 10.10.10.1;
        option subnet-mask 255.255.255.0;
        pool
        {
                failover peer "dhcp-failover";
                deny dynamic bootp clients;
                range 10.10.10.2 10.10.10.254;
        }
}

bash-3.00# /export/sip-dhcp-4.2.0/sbin/dhcpd -cf
/export/sip-dhcp-4.2.0/etc/dhcpd.conf -lf
/export/sip-dhcp-4.2.0/etc/dhcpd.leases -pf
/export/sip-dhcp-4.2.0/etc/sip.pid -d ce0
Internet Systems Consortium DHCP Server 4.2.0
Copyright 2004-2010 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Wrote 126 leases to leases file.
Listening on DLPI/ce0/00:14:4f:47:83:e7/113.32.2.210/29
Sending on   DLPI/ce0/00:14:4f:47:83:e7/113.32.2.210/29
Sending on   Socket/fallback/fallback-net
failover peer dhcp-failover: I move from normal to startup
failover peer dhcp-failover: peer moves from normal to
communications-interrupted
failover peer dhcp-failover: I move from startup to normal
balancing pool 4400c8 10.10.10.0/24  total 253  free 127  backup 126
lts 0  max-own (+/-)25
balanced pool 4400c8 10.10.10.0/24  total 253  free 127  backup 126
lts 0  max-misbal 38
failover peer dhcp-failover: peer moves from
communications-interrupted to normal
peer dhcp-failover: disconnected
failover peer dhcp-failover: I move from normal to communications-interrupted
message length wait: unexpected error
message length wait: unexpected error
message length wait: unexpected error
message length wait: unexpected error
message length wait: unexpected error
^C