Ethereal-users: [Ethereal-users] Re: ÄEthereal-usersÅ DHCP filtering while capturing problem / p

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From: Guy Harris <guy@xxxxxxxxxxxx>
Date: Fri, 8 Aug 2003 00:37:25 -0700
On Fri, Aug 08, 2003 at 10:17:48AM +0300, Aki.Sivula@xxxxxxxxxxxxxxx wrote:
> All other messages are filtered out expect the BOOTP messages
> from port 68 to port 67.

"port 68 and port 67" will filter out all messages other than ones to
TCP or UDP port 67 and from TCP or UDP port 68 and ones to TCP or UDP
port 68 from TCP or UDP port 67, so with that filter you should expect
all messages other than those to be filtered out.

Are there any messages between ports 67 and 68 *other* than BOOTP
messages you're expecting to see?

Note also that "port 67 and port 68" doesn't mean "show me traffic to or
from port 67 and traffic to and from port 68", it means "show me traffic
that has port numbers of 67 and 68 in it", i.e. it shows only traffic
between those two ports.  If you want to see traffic to or from port 67
and traffic to or from port 68, do

	port 67 or port 68