junos dhcp classless (RFC 3442) routes
> show configuration system services dhcp pool 192.168.2.0/24 address-range low 192.168.2.12 high 192.168.2.254; router { 192.168.2.10; } option 121 array ip-address [ 20 . 10.0.0 192.168.2.1 ]; option 249 array ip-address [ 20 . 10.0.0 192.168.2.1 ]; Где: 20 - маска (mask) 10.0.0 - подсеть (subnet) 192.168.2.1 - шлюз (gw)