public static string GetMacByIp(string ip) { List <MacIpPair> macIpPairs = GetAllMacAddressesAndIPPairs(); MacIpPair pair = macIpPairs.FirstOrDefault(x => x.IpAddress == ip); return(pair.MacAddress ?? ""); }
public static string GetIpByMac(string mac) { mac = mac.ToLower(); List <MacIpPair> macIpPairs = GetAllMacAddressesAndIPPairs(); MacIpPair pair = macIpPairs.FirstOrDefault(x => x.MacAddress == mac); return(pair.IpAddress ?? ""); }