Messages in this thread | | | Date | Mon, 03 Feb 2003 15:45:12 +0100 | From | "Carlos Velasco" <> | Subject | Re: 2.4.20 Broken Path MTU Discovery? |
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On 03/02/2003 at 13:42 Alan Cox wrote:
>The real problem and the reason you have to stop at some point and say "no >way" is that third parties can send spoof icmps and force the connection >down to stupid sizes otherwise. Forcing a BGP feed down to 68 bytes MTU >tends to knock ISP's off the net for example.
Problem is that the parameter is not documented in filesystems/proc Also, it is not so easy to send spoofed icmps as the icmp must contain the original packet with high len that caused the icmp.
Regards, Carlos velasco
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