MSF

>use auxiliary/scanner/discovery/arp_sweep

>use auxiliary/scanner/discovery/udp_sweep

>use auxiliary/scanner/netbios/nbname
meterpreter>run post/windows/gather/arp_scanner RHOSTS=192.168.1.1/24
meterpreter>run post/multi/gather/ping_sweep RHOSTS=192.168.1.1/24