const net.sysARPHardwareIPv4IPv4

2 uses

	net (current package)
		interface_linux.go#L51: 	sysARPHardwareIPv4IPv4 = 768 // IPv4 over IPv4 tunneling
		interface_linux.go#L69: 				case sysARPHardwareIPv4IPv4, sysARPHardwareGREIPv4, sysARPHardwareIPv6IPv4: