ipaddress=192.168.2.3
netmask=255.255.255.252

Um, does that actually work? 192.168.2.3 is the subnet-directed broadcast address for that netmask (all subnet bits 1). Any packet you send to 192.168.2.3 will also be received by (say) 192.168.2.1 if that host's netmask is also set to 255.255.255.252.

Peter