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@@ -4,7 +4,6 @@ using SharpPcap;
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using SharpPcap.LibPcap;
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using System;
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using System.Collections.Generic;
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-using System.Configuration;
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using System.Linq;
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using System.Net;
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using System.Net.Sockets;
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@@ -75,11 +74,11 @@ namespace DhcpServer
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var socket = new Socket(_listenOn.AddressFamily, SocketType.Dgram, ProtocolType.Udp)
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{
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EnableBroadcast = true,
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- SendBufferSize = 65536,
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- ReceiveBufferSize = 65536
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+ SendBufferSize = 1500,
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+ ReceiveBufferSize = 1500
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};
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socket.Bind(_listenOn);
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- var buffer = new byte[65536];
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+ var buffer = new byte[1500];
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EndPoint remoteEndPoint = new IPEndPoint(IPAddress.Any, 68);
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var polling = DateTime.Now;
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@@ -115,7 +114,7 @@ namespace DhcpServer
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bytes = reply.WriteToBuffer(buffer);
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var to = new IPEndPoint(IPAddress.Broadcast, 68);
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Console.WriteLine($"Send {bytes} bytes to {to} {reply.MessageType} by {reply.ClientMacAddressHex}");
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- socket.SendTo(buffer, 0, bytes, SocketFlags.None, to);
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+ var sent = socket.SendTo(buffer, 0, bytes, SocketFlags.None, to);
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}
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}
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catch (Exception e)
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@@ -135,7 +134,7 @@ namespace DhcpServer
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var clientMac = packet.ClientMacAddressHex;
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Console.WriteLine($" {packet.MessageType} by {clientMac}");
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- Console.WriteLine($" {packet.Vendor ?? "Unknown Vendor"} / {packet.UserClass ?? "Unknown Class"}");
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+ Console.WriteLine($" {packet.Vendor ?? "Unknown Vendor"} / {packet.UserClass ?? "Unknown Class"} / {packet.HostName ?? "Unknown HostName"}");
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DhcpMessageType reply;
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switch (packet.MessageType)
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@@ -160,17 +159,10 @@ namespace DhcpServer
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else
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{
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// extract params
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- var requestParameters = packet.Options[DhcpOption.ParameterRequestList];
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var hostName = packet.HostName;
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var userClass = packet.UserClass;
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var vendor = packet.Vendor;
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- //byte arch = 0;
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- //if (packet.Options.TryGetValue(DhcpOption.ClientIdentifier, out var bufArch))
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- //{
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- // arch = bufArch?.FirstOrDefault() ?? 0;
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- //}
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-
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// Allocate ip address
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PoolSlot allocateSlot = null;
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@@ -304,7 +296,7 @@ namespace DhcpServer
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private static void InitConfig()
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{
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_nic = LibPcapLiveDeviceList.Instance.FirstOrDefault(p => p.Addresses.Any(q => Equals(q.Addr.ipAddress, _listenOn.Address)));
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- if (null == _nic) throw new ConfigurationErrorsException("Device not found");
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+ //if (null == _nic) throw new ConfigurationErrorsException("Device not found");
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var slots = new PoolSlot[_poolSize];
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slots[0] = new PoolSlot(_poolStart);
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