[e2e] dont fragment bit in XP/Vista

David Borman david.borman at windriver.com
Mon Sep 29 08:01:57 PDT 2008

This is part of Path MTU discovery.  See RFC 1191 for more details.
			-David Borman

On Sep 29, 2008, at 9:28 AM, Oleg Vishnepolsky wrote:

> I am new to the list and I apologize profusely if this has been  
> discussed here already.
> I see dont fragment bit set in all IP datagrams in XP machines. Why  
> would Microsoft stack set that, and is there to disable this ? We  
> had a number of issues with this setting.
> I suspect that this was turned on by a Microsoft TCP/IP stack  
> engineer during a debugging session, and never cleared.
> Thoughts ?
> Oleg Vishnepolsky

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