UdpClient.DontFragment Property

Datagrams require fragmentation when their size exceeds the Maximum Transfer Unit (MTU) of the transmission medium. Datagrams may be fragmented by the sending host or by an intermediate router. If a datagram must be fragmented, and the DontFragment option is set, the datagram is discarded, and an Internet Control Message Protocol (ICMP) error message is sent back to the sender of the datagram.

The following code example shows the use of the DontFragment property.

public static void GetSetDontFragment(UdpClient u)
{
    // Set the don't fragment flag for packets emanating from
    // this client.
    u.DontFragment = true;
    Console.WriteLine("DontFragment value is {0}",
        u.DontFragment);
}

.NET Framework

.NET Framework Client Profile

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference