From owner-freebsd-current@FreeBSD.ORG Thu Jan 1 20:19:21 2009 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6350D1065673; Thu, 1 Jan 2009 20:19:21 +0000 (UTC) (envelope-from qing.li@bluecoat.com) Received: from whisker.bluecoat.com (whisker.bluecoat.com [216.52.23.28]) by mx1.freebsd.org (Postfix) with ESMTP id 473128FC16; Thu, 1 Jan 2009 20:19:21 +0000 (UTC) (envelope-from qing.li@bluecoat.com) Received: from bcs-mail03.internal.cacheflow.com ([10.2.2.95]) by whisker.bluecoat.com (8.14.2/8.14.2) with ESMTP id n01KJKFx026243; Thu, 1 Jan 2009 12:19:20 -0800 (PST) X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Date: Thu, 1 Jan 2009 12:16:37 -0800 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: SCTP related issue with recent ARP changes? Thread-Index: AclsMle5U2WQGWG/SKSzlWZ3/NiGZQAG4G76 References: From: "Li, Qing" To: =?iso-8859-1?Q?Michael_T=FCxen?= , "FreeBSD Net" Cc: qingli@freebsd.org, current@freebsd.org Subject: RE: SCTP related issue with recent ARP changes? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Jan 2009 20:19:22 -0000 Hi Michael, Your problem could be related to the recent ARP changes. I will investigate further to confirm.=20 Thanks, -- Qing -----Original Message----- From: owner-freebsd-net@freebsd.org on behalf of Michael T=FCxen Sent: Thu 1/1/2009 8:59 AM To: FreeBSD Net Subject: SCTP related issue with recent ARP changes? =20 Dear all, I'm running the current CVS version of FreeBSD 8 in a virtual machine using VMWare 2.0.1 on a Mac (not sure if this is relevant) and bridged networking having an em interface on the virtual machine. I'm using a similar setup with older FreeBSD machines and they are running fine. Loopback communication based on UDP, TCP, SCTP or ICMP works fine. Communicating with other hosts using UDP, TCP or ICMP works fine. Communicating with other hosts using SCTP does not work. The SCTP stack calls ip_output() and an ARP request for the correct destination IP address is send out. A corresponding ARP reply is visible in Wireshark (running on the FreeBSD 8 box) and looks good. However, the corresponding SCTP packet it never sent out. I'm not sure, but this might be related to the recent ARP changes. Is there anything required from the transport layer to be done when calling ip_output() that was not required before? Best regards Michael _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"