SCTP : problems in sending ASCONF chunks

[jyl_2006]

Hi,Tüxen

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：
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　ACK:
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=0
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=20, offset=32, length=48 stcb:0xcc2335dc
sctp_process_control: processing a chunk type=3, len=16

 Actually,I also test following Topology :
--------1(192.168.1.20)                        
--------------1(192.168.1.80)
computer  A   --------------------------- computer B
--------2(192.168.2.20)                        
--------------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.


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