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Date:	Thu, 21 Feb 2002 17:14:17 -0700
From:	Warren Young <warren AT etr-usa DOT com>
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To:	Cygwin-L <cygwin AT cygwin DOT com>
Subject:	Re: BSD Style ping for Cygwin
References:	<001701c1ba5f$717de4e0$1a00010a AT gemplex DOT com>

Majid Ansari wrote:
> 
> I am looking for a ping with a
> feature to specify source address on windows ... please let me know if any
> other tool doing that on windows.

In the Winsock Programmer's FAQ, there is source code for doing a ping,
which will let you set the source address.  However, the code doesn't
actually _set_ the address when doing a normal ping, which implies that
the network stack sets this field for you before sending the packet
out.  It may be that it would rewrite that field if you did set it to
something that doesn't match a local interface.

Download the code and try it.  If it works, you can go grab Linux's or
one of the BSD's ping programs and modify it so it can be part of
Cygwin.

	http://tangentsoft.net/wskfaq/examples/rawping.html
-- 
= Winsock Programmer's FAQ: http://tangentsoft.net/wskfaq/

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