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Sending ICMP messages of type 3 when packet size exceeds MTU of the interface
I have configured an interface with a MTU of 1200. Now, if i send a ping with Don' fragment bit set (ping -s 1400 -M do), the linux box silently drops this packet rather than sending ICMP messages of type 3, code 4 (Destination Unreachable, Fragmentation required, and DF set) when packet size exceeds MTU of the interface. Is there a way, I can get the linux box to send an ICMP type 3, code 4 message when it gets a packet crossing the MTU of the interface.
Last edited by nmb1081; 04-11-2008 at 04:23 AM.
Reason: For clarity
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