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EthernetFields.cs
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EthernetFields.cs
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/*
This file is part of PacketDotNet
PacketDotNet is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
PacketDotNet is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PacketDotNet. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright 2009 Chris Morgan <chmorgan@gmail.com>
*/
using System;
namespace PacketDotNet
{
/// <summary>
/// Ethernet protocol field encoding information.
/// </summary>
public class EthernetFields
{
/// <summary> Width of the ethernet type code in bytes.</summary>
public readonly static int TypeLength = 2;
/// <summary> Position of the destination MAC address within the ethernet header.</summary>
public readonly static int DestinationMacPosition = 0;
/// <summary> Position of the source MAC address within the ethernet header.</summary>
public readonly static int SourceMacPosition;
/// <summary> Position of the ethernet type field within the ethernet header.</summary>
public readonly static int TypePosition;
/// <summary> Total length of an ethernet header in bytes.</summary>
public readonly static int HeaderLength; // == 14
static EthernetFields()
{
SourceMacPosition = EthernetFields.MacAddressLength;
TypePosition = EthernetFields.MacAddressLength * 2;
HeaderLength = EthernetFields.TypePosition + EthernetFields.TypeLength;
}
/// <summary>
/// size of an ethernet mac address in bytes
/// </summary>
public readonly static int MacAddressLength = 6;
}
}