classing gateway

[marco perugini]

hi list!
i've my pool [10.0.0.0/24] and there are two different gw that forward
dhcpdiscover to my server:
DHCPDISCOVER from XX:XX:XX:XX:XX:XX: via 192.168.2.101
DHCPDISCOVER from XX:XX:XX:XX:XX:XY: via 192.168.98.201
so i want to split my pool to assign range 10.0.0.1 - 10.0.0.127 to
192.168.2.101's requests and the other half to 192.168.98.201's; how can
i class the gateways in dhcpd.conf? does anyone know what i have to match?
regards,
marco