Minions can easily be matched based on IP address, or by subnet (using CIDR notation).
salt -S 192.168.40.20 test.version salt -S 2001:db8::/64 test.version
Ipcidr matching can also be used in compound matches
salt -C 'S@10.0.0.0/24 and G@os:Debian' test.version
It is also possible to use in both pillar and state-matching
'172.16.0.0/12': - match: ipcidr - internal