RE: source ip spoofing option problem

Hi, Danny;
Thank for your explaining, I knew what due to this problem.
And I will try on other platform.

==========================================
eric.wu@sti.com.tw

-----Original Message-----
From: Danny McPherson [mailto:danny@tcb.net]
Sent: Saturday, June 30, 2007 3:24 AM
To: Neil McKee
Cc: eric.wu@sti.com.tw; sflow@sflow.org
Subject: Re: [sFlow] source ip spoofing option problem

On Jun 29, 2007, at 9:49 AM, Neil McKee wrote:

> Eric,
>
> I may be wrong, but I don't think Windows allows this kind of
> source-spoofing, even with cygwin. This feature was only ever
> tested on linux.

Yep, suspect so:

http://technet.microsoft.com/en-us/library/bd3abaad-c6cb-2b4e-
bc02-75876253e295.aspx#EHAA

What new functionality is added to this feature in Windows XP Service
Pack 2?

[...]
UDP datagrams with invalid source addresses cannot be sent over raw
sockets. The IP source address for any outgoing UDP datagram must
exist on a network interface or the datagram is dropped.

-danny
Received on Sun Jul 1 19:39:42 2007