Date: Sun, 23 Oct 2011 02:33:30 -0700 (PDT) From: jyl_2006 <yilinjing2006@gmail.com> To: freebsd-net@freebsd.org Subject: SCTP : problems in sending ASCONF chunks Message-ID: <1319362410261-4929128.post@n5.nabble.com>
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Hi, I use FreeBSD 9.0 Beta2 on two computers .=20 One have one wireless card, and the other one has two wireless card. When I use sctp with the feature of automatic address reconfiguration , I notice that no Asconf Chunk send. Here are INIT chunk message about association: Both in the INIT chunk and INIT ACK chunk , the Supported Extensions Parameter field indicates that ASCONF, ASCONF-ACK, FORWARD-TSN, PKTDROP, STREAM_RESET and AUTH are supported. So I think it will be ok ,if I use sctp_bindx() to bind a ip address, but n= o ASCONF chunk shows in Wireshark. After that ,I recompiled the kernel with the option of debug enable, in the file from dmesg =EF=BC=8CI notice that kernel get the new ip address ,but i= t does not send this ASCONF CHUNK. Here are messages: 192.168.1.50 is the new ip address that I want to bind to the association. USR Send complete qo:0 prw:1863859 unsent:18 tf:18 cooq:1 toqs:18 err:0 Ok laddr->ifa:0xc7744280 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:0xc721dc00 iphlen:20 offset:32 length:48 stcb:0xc718e5dc stcb:0xc718e5dc state:8 sctp_process_control: iphlen=3D20, offset=3D32, length=3D48 stcb:0xc718e5dc sctp_process_control: processing a chunk type=3D3, len=3D16 -- View this message in context: http://freebsd.1045724.n5.nabble.com/SCTP-pro= blems-in-sending-ASCONF-chunks-tp4929128p4929128.html Sent from the freebsd-net mailing list archive at Nabble.com.
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