I am currently working in an application that scan the all the connected devices on my network.
I have tried with ping from 1 to 254 ip’s by changing the last subnet , but some of the devices doesn’t responding to ping. In android having similar app like this to scan devices in network : https://github.com/aaronjwood/PortAuthority , I need to find the all the available devices in my network. Kindly give idea or solution to achieve this.

if let ipAddress = getAllIPsInSameNetwork(myIP: myIP, subnetMask: "255.255.255.0") {
                ipAddress.forEach { ip in
                    group.enter()
                    var pingProvider : PingProvider? = PingProvider()
                    pingProvider?.startPinging(host: ip, pingCount: 1) { data, error in
                        group.leave()
                        if data?.packetLoss != 100{
                            print("Avaialble",ip)
                        }
                        pingProvider = nil
                    }
                }
            }