DHCP failover

[gondolin]

I'm having trouble to get my dhcp failover to work, its not serving any IP towards my windows clients:
If i disable failover peer "ucc-dhcp"; and deny dynamic bootp clients; then all works fine. There are also no errors.

I have a simple version that works with one interface and only for IP phones

/etc/dhcp/dhcp.conf
ddns-update-style none;
one-lease-per-client true;
option domain-name "sxpbelux.net";
option subnet-mask 255.255.252.0;
default-lease-time 1209600;
max-lease-time 2419200;
authoritative;
failover peer "dhcp" {
primary;
address 10.32.92.31;
port 519;
peer address 10.32.92.32;
peer port 520;
max-response-delay 60;
max-unacked-updates 10;
mclt 600;
split 128;
load balance max seconds 3;
}
include "/etc/dhcp/dhcpd.master";

/etc/dhcp/dhcpd.master
subnet 10.32.92.0 netmask 255.255.252.0 {
pool {
failover peer "dhcp";
range 10.32.92.51 10.32.95.254;
deny dynamic bootp clients;
}
option broadcast-address 10.32.95.255;
}



non working version

The machine has two interfaces 10.32.96.0/24 and 10.32.16.0/24

/etc/dhcp/dhcp.conf
authoritative;
ddns-update-style ad-hoc;
one-lease-per-client true;

failover peer "ucc-dhcp" {
primary;
address 10.32.96.31;
port 519;
peer address 10.32.96.32;
peer port 520;
max-response-delay 60;
max-unacked-updates 10;
mclt 3600;
split 128;
load balance max seconds 3;
}

include "/etc/dhcp/vlan-voip.conf"; # for IP phones
include "/etc/dhcp/vlan-data.conf"; # for windows machines


/etc/dhcp/vlan-voip.conf
subnet 10.32.96.0 netmask 255.255.255.0 {
option domain-name "sxpbelux.net";
option subnet-mask 255.255.255.0;
default-lease-time 1209600;
max-lease-time 2419200;
option broadcast-address 10.32.96.255;
pool {
failover peer "ucc-dhcp";
range 10.32.96.51 10.32.96.254;
deny dynamic bootp clients;
}

}


/etc/dhcp/vlan-data.conf
option WPAD code 252 = string;

subnet 10.32.16.0 netmask 255.255.255.0 {
option domain-name "sxpbelux.net";
option subnet-mask 255.255.255.0;
option broadcast-address 10.32.16.255;
option domain-name-servers 10.32.16.2, 10.32.3.150;
option routers 10.32.16.20;
option WPAD "http://ucc-proxy:8080/wpad.dat";
pool {
failover peer "ucc-dhcp";
max-lease-time 3600;
range 10.32.16.226 10.32.16.250;
deny dynamic bootp clients;
}
}