lkml.org 
[lkml]   [2003]   [Feb]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 2.4.20 Broken Path MTU Discovery?
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




-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:32    [W:0.032 / U:1.224 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site