From owner-freebsd-stable Mon Mar 27 20:42:11 2000 Delivered-To: freebsd-stable@freebsd.org Received: from point.osg.gov.bc.ca (point.osg.gov.bc.ca [142.32.102.44]) by hub.freebsd.org (Postfix) with ESMTP id 560D437B51F for ; Mon, 27 Mar 2000 20:42:07 -0800 (PST) (envelope-from Cy.Schubert@uumail.gov.bc.ca) Received: (from daemon@localhost) by point.osg.gov.bc.ca (8.8.7/8.8.8) id UAA16882; Mon, 27 Mar 2000 20:41:55 -0800 Received: from passer.osg.gov.bc.ca(142.32.110.29) via SMTP by point.osg.gov.bc.ca, id smtpda16880; Mon Mar 27 20:41:54 2000 Received: (from uucp@localhost) by passer.osg.gov.bc.ca (8.9.3/8.9.1) id UAA04770; Mon, 27 Mar 2000 20:41:54 -0800 (PST) Received: from cwsys9.cwsent.com(10.2.2.1), claiming to be "cwsys.cwsent.com" via SMTP by passer9.cwsent.com, id smtpdJU4768; Mon Mar 27 20:40:55 2000 Received: (from uucp@localhost) by cwsys.cwsent.com (8.9.3/8.9.1) id UAA07738; Mon, 27 Mar 2000 20:40:54 -0800 (PST) Message-Id: <200003280440.UAA07738@cwsys.cwsent.com> Received: from localhost.cwsent.com(127.0.0.1), claiming to be "cwsys" via SMTP by localhost.cwsent.com, id smtpdit7734; Mon Mar 27 20:40:49 2000 X-Mailer: exmh version 2.1.1 10/15/1999 Reply-To: Cy Schubert - ITSD Open Systems Group From: Cy Schubert - ITSD Open Systems Group X-OS: FreeBSD 3.4-RELEASE X-Sender: cy To: David Gilbert Cc: freebsd-stable@FreeBSD.ORG Subject: Re: 4.0-STABLE dhcp conflicts. In-reply-to: Your message of "Mon, 27 Mar 2000 12:44:34 EST." <14559.40450.544687.51037@trooper.velocet.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Mon, 27 Mar 2000 20:40:48 -0800 Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG n message <14559.40450.544687.51037@trooper.velocet.net>, David Gilbert writes : > It appears that when I run two (not sure if one does it) tcpdumps on > the dhcp server, the dhcp clients don't get any responses to their > queries. Is there some flaw in the dhcpd bpf rules? I suspect that the dhcp server set the interface to promiscuous mode so it can listen for broadcasts. Tcpdump sets up an interface for promiscuous opertion and when you exit tcpdump it returns it to non-promiscuous operation. Killing and restarting your dhcp server after exiting tcpdump should solve your problem, as it will set the interface up for promiscuous operation again. Regards, Phone: (250)387-8437 Cy Schubert Fax: (250)387-5766 Team Leader, Sun/DEC Team Internet: Cy.Schubert@osg.gov.bc.ca Open Systems Group, ITSD, ISTA Province of BC I To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message