Re: Sniffing a DHCP Boot

Evan Wetstone <evanw@sabine.us.dell.com> Wed, 10 April 1996 14:17 UTC

Date: Wed, 10 Apr 1996 10:08:49 -0400
Message-Id: <199604101325.IAA09914@sabine.us.dell.com>
Errors-To: droms@bucknell.edu
Reply-To: dhcp-v4@bucknell.edu
Originator: dhcp-v4@bucknell.edu
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From: Evan Wetstone <evanw@sabine.us.dell.com>
To: Multiple recipients of list <dhcp-v4@bucknell.edu>
Subject: Re: Sniffing a DHCP Boot

[stuff deleted]
> > In the trace file, which is taken from the client end, 
> > I see BOOTP packets, then an ARP for the IP address of the client
> > workstation, from the client workstation.
> 
> This would make sense, as DHCP uses the BOOTP port (and packet format).
> That ARP is the client doing a last sanity check to see if anyone else
> is  (improperly) using the IP address the server assigned to the client
> before using the address.

And if someone else is using the address, the win95 client promptly shuts
itself down instead of issuing a DHCPDECLINE message and getting a
new address.   Hey Microsoft, any chance of getting this fixed?


> 
> -------
> Ken Key    (key@tgv.com)  |  cisco Systems, Inc.   | (Formerly TGV, Inc.)  
> +1 (408) 457-5200 (voice) |  101 Cooper St.        | We are Borg of cisco.
> +1 (408) 457-5208 (fax)   |  Santa Cruz, CA  95060 | Prepare to be assimilated.
> 
> 


-- 
Evan Wetstone                                                evanw@dell.com

	 	    The Network Works.  No Excuses.

Sniffing a DHCP Boot Bill Fox
Re: Sniffing a DHCP Boot KEY
Re: Sniffing a DHCP Boot Evan Wetstone
Re: Sniffing a DHCP Boot Evan Wetstone
Re: Sniffing a DHCP Boot Greg E Hersh
Re: Sniffing a DHCP Boot Michael J. Lewis