Hto3.NetworkHelpers 1.0.7

Hto3.NetworkHelpers

Features

Network helper methods.

GetLocalIPv4Addresses

Get all lan IPv4 addreesses of this machine.

IEnumerable<IPAddress> ipAddresses = NetworkHelpers.GetLocalIPv4Addresses();

GetHostNameThroughIPAddressAsync

Get host name through IP address.

String hostname = await NetworkHelpers.GetHostNameThroughIPAddressAsync("66.171.248.178");

GetExternalIPAddressAsync

Get external IP address of this machine.

IPAddress ipAddress = await NetworkHelpers.GetExternalIPAddressAsync();

GetExternalDNSRecordAsync

Returns the reverse DNS record (PTR) for your external IP.

String dnsRecord await NetworkHelpers.GetExternalDNSRecordAsync();
//something like a1799.dscb.akamai.net

GetLocalIPv4AddressToReachInternet

Get the local ip address to reach the Internet.

IPAddress ipAddress = NetworkHelpers.GetLocalIPv4AddressToReachInternet()

ValidateCIDRIP

Validate a CIDR Ip string (i.e "10.0.0.0/24")

const String WRONG_CIDR_IP = "192.168.1.1/";
Boolean result = NetworkHelpers.ValidateCIDRIP(WRONG_CIDR_IP);
//result is false

const String VALID_CIDR_IP = "10.0.0.0/24";
Boolean result = NetworkHelpers.ValidateCIDRIP(VALID_CIDR_IP);
//result is true

GetIpv4SubnetFromNetMask

This Function is Used to get Subnet based on NetMask (i.e 0-32).

IPAddress result = NetworkHelpers.GetIpv4SubnetFromNetMask(23);
//Result is "255.255.254.0"

IsIpv4AddressInRange

Check if the provided Ip is in range of the CIDR Ip.

IPAddress IP = IPAddress.Parse("192.168.1.1");
String CIDR_IP_16 = "192.168.0.0/16";
Boolean result = NetworkHelpers.IsIpv4AddressInRange(IP, CIDR_IP_16);
//result is true

IPAddress IP = IPAddress.Parse("10.0.0.1");
String CIDR_IP_24 = "192.168.0.0/24";
Boolean result = NetworkHelpers.IsIpv4AddressInRange(IP, CIDR_IP_24);
//result is false

IsIpv4AddressInPrivateAddressSpace

Check if the provided Ip is in the private address space.

IPAddress PRIVATE_IP_ADDRESS = IPAddress.Parse("192.168.1.1");
Boolean result = NetworkHelpers.IsIpv4AddressInPrivateAddressSpace(PRIVATE_IP_ADDRESS);
//result is true

IPAddress PUBLIC_IP_ADDRESS = IPAddress.Parse("200.87.14.111");
Boolean result = NetworkHelpers.IsIpv4AddressInPrivateAddressSpace(PUBLIC_IP_ADDRESS);
//result is false

IsIpv4AddressInPublicAddressSpace

Check if the provided Ip is in the public address space.

IPAddress PRIVATE_IP_ADDRESS = IPAddress.Parse("192.168.1.1");
Boolean result = NetworkHelpers.IsIpv4AddressInPublicAddressSpace(PRIVATE_IP_ADDRESS);
//result is false

IPAddress PUBLIC_IP_ADDRESS = IPAddress.Parse("200.87.14.111");
Boolean result = NetworkHelpers.IsIpv4AddressInPublicAddressSpace(PUBLIC_IP_ADDRESS);
//result is true

GetNetworkInterfaceVendorNameByMACAddress

Get the network interface vendor name by MAC address. Null if not found.

String result = NetworkHelpers.GetNetworkInterfaceVendorNameByMACAddress("40-8D-5C-4D-EC-A6");
//result is "GIGA-BYTE TECHNOLOGY CO.,LTD."

GetKnownPort

Get information about a known port. Null if not found.

var result = NetworkHelpers.GetKnownPort(1433, ProtocolType.Tcp);
//result is
// * ServiceName: "ms-sql-s."
// * Port: 1433
// * Protocol: ProtocolType.Tcp
// * Description: "Microsoft-SQL-Server"