static_routes="LAN2"
route_kvm="-net 10.0.1.0/24 10.0.0.1"
kvm is not defined, should be LAN2
static_routes="LAN2"
route_LAN2="-net 10.0.1.0/24 10.0.0.1"
You also need to setup default route, so the following is correct syntax:
defaultrouter="your-default-route-here"
static_routes="lan1 lan2"...