From owner-freebsd-net@FreeBSD.ORG Mon Oct 24 02:20:45 2011 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B77B2106564A for ; Mon, 24 Oct 2011 02:20:45 +0000 (UTC) (envelope-from yilinjing2006@gmail.com) Received: from sam.nabble.com (sam.nabble.com [216.139.236.26]) by mx1.freebsd.org (Postfix) with ESMTP id 93BB88FC13 for ; Mon, 24 Oct 2011 02:20:45 +0000 (UTC) Received: from [192.168.236.26] (helo=sam.nabble.com) by sam.nabble.com with esmtp (Exim 4.72) (envelope-from ) id 1RIA9c-0008Qv-SW for freebsd-net@freebsd.org; Sun, 23 Oct 2011 19:20:44 -0700 Date: Sun, 23 Oct 2011 19:20:44 -0700 (PDT) From: jyl_2006 To: freebsd-net@freebsd.org Message-ID: <1319422844876-4931035.post@n5.nabble.com> In-Reply-To: <2E60D876-9B2C-4039-9366-40451D5914E2@lurchi.franken.de> References: <1319362410261-4929128.post@n5.nabble.com> <2E60D876-9B2C-4039-9366-40451D5914E2@lurchi.franken.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: Re: SCTP : problems in sending ASCONF chunks X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 24 Oct 2011 02:20:45 -0000 Hi,T=C3=BCxen I will provide more detail: The Topology is: --------1(192.168.1.20) computer A ---------------------------1 computer B(192.168.1.80) --------2(192.168.1.50) means computer has two wireless cards , I name them with A_1 and A_2, computer B has one wireless cards, and its name is B_1. Now, A_1 init a association with B_1. Here, I provide message getting from wireshark , INIT=EF=BC=9A Internet Protocol, Src: 192.168.1.20 (192.168.1.20), Dst: 192.168.1.80 (192.168.1.80) Supported Extensions parameter (Supported types: ASCONF, ASCONF_ACK, FORWARD_TSN, PKTDROP, STREAM_RESET, AUTH) INIT=E3=80=80ACK: Internet Protocol, Src: 192.168.1.80 (192.168.1.80), Dst: 192.168.1.20 (192.168.1.20) Supported Extensions parameter (Supported types: ASCONF, ASCONF_ACK, FORWARD_TSN, PKTDROP, STREAM_RESET, AUTH) Debug message: SCTP_SACK process cum_ack:45452434 num_seg:0 a_rwnd:1864135 Check for chunk output prw:1864135 tqe:1 tf=3D0 Send called addr:0xc591c980 send length 2 Calling ipv4 output routine from low level src addr:c0a80114 Destination is c0a80150 RTP route is 0xc5caaaf8 through IP output returns 0 m-c-o put out 1 Ok, we have put out 1 chunks USR Send complete qo:0 prw:1863859 unsent:18 tf:18 cooq:1 toqs:18 err:0 Ok laddr->ifa:0xc5baab00 is possible, asconf_queue_mgmt: inserted asconf ADD_IP_ADDRESS: IPv4 address: 192.168.1.50:0 m-c-o put out 0 Ok, we have put out 0 chunks sctp_input() length:28 iphlen:20 sctp_input(): Packet of length 48 received on wlan0 with csum_flags 0x0. Ok, Common input processing called, m:0xc72dab00 iphlen:20 offset:32 length:48 stcb:0xcc2335dc stcb:0xcc2335dc state:8 sctp_process_control: iphlen=3D20, offset=3D32, length=3D48 stcb:0xcc2335dc sctp_process_control: processing a chunk type=3D3, len=3D16 Actually,I also test following Topology : --------1(192.168.1.20) =20 --------------1(192.168.1.80) computer A --------------------------- computer B --------2(192.168.2.20) =20 --------------2(192.168.2.80) means computer has two wireless cards , I name them with A_1 and A_2, computer B has two wireless cards, and its name is B_1 and B_2. The result from wireshark and debug message have same results. -- View this message in context: http://freebsd.1045724.n5.nabble.com/SCTP-pro= blems-in-sending-ASCONF-chunks-tp4929128p4931035.html Sent from the freebsd-net mailing list archive at Nabble.com.