:ipv4
iPXE> show net0/gateway net0.dhcp/gateway:ipv4 = 10.0.0.1
iPXE> show 42:ipv4 # Option 42 - NTP server address net0.dhcp/42:ipv4 = 193.62.22.66
iPXE> set net0/netmask 255.255.255.0
Represents a type of setting that is an IPv4 address.