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在使用ZLG/IP和UCTCP/IP的过程中遇到下面这个很诡异的问题:
同样的WEB页,使用ZLG/IP实现一个简单的WEB页面,可以正常看到图片显示,但在使用UCTCP/IP时可以显示网页但图片却显示不出来。
通过用OmniPeek抓包对比,并未发现异常。两个协议栈测试N次,UCTCP/IP就是不能正常显示图片。以下是抓包数据,请高手们帮忙解疑。
一、使用ZLG/IP正常显示图片的数据包:
zlg/ip 数据包ourdev_468396.gif(文件大小:900K,只有400K以内的图片才能直接显示) (原文件名:zlg1.gif)
下面是 HTTP的图片的头信息和图片数据的数据包清单:
(1)HTTP的图片的头信息:
Packet Info
Packet Number: 25
Flags: 0x00000000
Status: 0x00000000
Packet Length: 227
Timestamp: 15:24:20.764496000 08/07/2009
Ethernet Header
Destination: 00:24:8C:7A:A9:F5 [0-5]
Source: 52:54:4C:19:F7:42 [6-11]
Protocol Type: 0x0800 IP [12-13]
IP Header - Internet Protocol Datagram
Version: 4 [14 Mask 0xF0]
Header Length: 5 (20 bytes) [14 Mask 0x0F]
Differentiated Services:%00000000 [15]
0000 00.. Default
.... ..00 Not-ECT
Total Length: 209 [16-17]
Identifier: 22 [18-19]
Fragmentation Flags: %010 [20 Mask 0xE0]
0.. Reserved
.1. Do Not Fragment
..0 Last Fragment
Fragment Offset: 0 (0 bytes) [20-21 Mask 0x1FFF]
Time To Live: 128 [22]
Protocol: 6 TCP - Transmission Control Protocol [23]
Header Checksum: 0x77DE [24-25]
Source IP Address: 192.168.0.174 [26-29]
Dest. IP Address: 192.168.0.52 [30-33]
TCP - Transport Control Protocol
Source Port: 80 http [34-35]
Destination Port: 1998 x25-svc-port [36-37]
Sequence Number: 32452 [38-41]
Ack Number: 1576274426 [42-45]
TCP Offset: 5 (20 bytes) [46 Mask 0xF0]
Reserved: %0000 [46 Mask 0x0F]
TCP Flags: %00011000 ...AP... [47]
0... .... (No Congestion Window Reduction)
.0.. .... (No ECN-Echo)
..0. .... (No Urgent pointer)
...1 .... Ack
.... 1... Push
.... .0.. (No Reset)
.... ..0. (No SYN)
.... ...0 (No FIN)
Window: 1460 [48-49]
TCP Checksum: 0xC579 [50-51]
Urgent Pointer: 0 [52-53]
No TCP Options
HTTP - Hyper Text Transfer Protocol
HTTP Version: HTTP/1.0 [54-61]
HTTP Status: 200 [62-64]
HTTP Reason: OK<CR><LF> [66-67]
Date: Mon, 24 Nov 2003 01:24:17 GMT<CR><LF> [71-104]
Server: microHttp/1.0 Zlgmcu Corporation<CR><LF> [108-146]
Accept-Ranges: bytes<CR><LF> [150-168]
Connection: Keep-Close<CR><LF> [172-192]
Content-Type: image/bmp<CR><LF><CR><LF> [196-217]
FCS - Frame Check Sequence
FCS: 0xDCC474F9 Calculated
(2)图片传输的数据包:
Packet Info
Packet Number: 27
Flags: 0x00000000
Status: 0x00000000
Packet Length: 500
Timestamp: 15:24:20.964443000 08/07/2009
Ethernet Header
Destination: 00:24:8C:7A:A9:F5 [0-5]
Source: 52:54:4C:19:F7:42 [6-11]
Protocol Type: 0x0800 IP [12-13]
IP Header - Internet Protocol Datagram
Version: 4 [14 Mask 0xF0]
Header Length: 5 (20 bytes) [14 Mask 0x0F]
Differentiated Services:%00000000 [15]
0000 00.. Default
.... ..00 Not-ECT
Total Length: 482 [16-17]
Identifier: 23 [18-19]
Fragmentation Flags: %010 [20 Mask 0xE0]
0.. Reserved
.1. Do Not Fragment
..0 Last Fragment
Fragment Offset: 0 (0 bytes) [20-21 Mask 0x1FFF]
Time To Live: 128 [22]
Protocol: 6 TCP - Transmission Control Protocol [23]
Header Checksum: 0x76CC [24-25]
Source IP Address: 192.168.0.174 [26-29]
Dest. IP Address: 192.168.0.52 [30-33]
TCP - Transport Control Protocol
Source Port: 80 http [34-35]
Destination Port: 1998 x25-svc-port [36-37]
Sequence Number: 32621 [38-41]
Ack Number: 1576274426 [42-45]
TCP Offset: 5 (20 bytes) [46 Mask 0xF0]
Reserved: %0000 [46 Mask 0x0F]
TCP Flags: %00011000 ...AP... [47]
0... .... (No Congestion Window Reduction)
.0.. .... (No ECN-Echo)
..0. .... (No Urgent pointer)
...1 .... Ack
.... 1... Push
.... .0.. (No Reset)
.... ..0. (No SYN)
.... ...0 (No FIN)
Window: 1460 [48-49]
TCP Checksum: 0x5179 [50-51]
Urgent Pointer: 0 [52-53]
No TCP Options
HTTP - Hyper Text Transfer Protocol
Continuation of existing HTTP stream
Binary Data:
BM........v...(. 42 4D B6 01 00 00 00 00 00 00 76 00 00 00 28 00 [54-69]
................ 00 00 1A 00 00 00 14 00 00 00 01 00 04 00 00 00 [70-85]
..@............. 00 00 40 01 00 00 C4 0E 00 00 C4 0E 00 00 00 00 [86-101]
................ 00 00 00 00 00 00 00 00 00 00 00 00 80 00 00 80 [102-117]
................ 00 00 00 80 80 00 80 00 00 00 80 00 80 00 80 80 [118-133]
................ 00 00 C0 C0 C0 00 80 80 80 00 00 00 FF 00 00 FF [134-149]
................ 00 00 00 FF FF 00 FF 00 00 00 FF 00 FF 00 FF FF [150-165]
................ 00 00 FF FF FF 00 FF FF FF FF FF FF FF FF FF FF [166-181]
................ FF FF FF 00 00 00 FF FF FF FF FF FF FF FF FF FF [182-197]
................ FF FF FF 00 00 00 FF FF FF FF FF FF FF FF FF FF [198-213]
................ FF FF FF 00 00 00 FF FF FF FF FF FF FF FF FF FF [214-229]
..............f. FF FF FF 00 00 00 FF FF FF FF FF FF FF F6 66 FF [230-245]
...............o FF FF FF 00 00 00 FF FF FF FF FF FF FF FF FF 6F [246-261]
.........ffoo.ff FF FF FF 00 00 00 FF FF FF 66 66 6F 6F FF 66 66 [262-277]
............o... FF FF FF 00 00 00 FF FF FF F6 FF FF 6F F6 FF F6 [278-293]
..........o.o... FF FF FF 00 00 00 FF FF FF FF 6F FF 6F F6 FF F6 [294-309]
................ FF FF FF 00 00 00 FF FF FF FF F6 FF F6 F6 FF FF [310-325]
o..........o..o. 6F FF FF 00 00 00 FF FF FF FF FF 6F F6 FF 6F FF [326-341]
o.........ff...f 6F FF FF 00 00 00 FF FF FF F6 66 66 F6 FF F6 66 [342-357]
o............o.. 6F FF FF 00 00 00 FF FF FF FF FF FF FF 6F FF FF [358-373]
.............o.. FF FF FF 00 00 00 FF FF FF FF FF FF FF 6F FF FF [374-389]
.............o.. FF FF FF 00 00 00 FF FF FF FF FF FF FF 6F FF FF [390-405]
................ FF FF FF 00 00 00 FF FF FF FF FF FF FF FF FF FF [406-421]
................ FF FF FF 00 00 00 FF FF FF FF FF FF FF FF FF FF [422-437]
................ FF FF FF 00 00 00 FF FF FF FF FF FF FF FF FF FF [438-453]
................ FF FF FF 00 00 00 FF FF FF FF FF FF FF FF FF FF [454-469]
................ FF FF FF 00 00 00 FF FF FF FF FF FF FF FF FF FF [470-485]
.......... FF FF FF 00 00 00 00 00 00 00 [486-495]
FCS - Frame Check Sequence
FCS: 0xC06BDBAA Calculated
以上是使用ZLG/IP传输,截到的数据包,浏览器收到以上数据包就可以正常地完整地显示一个带背景图片的简单页面。
二、使用UCTCP/IP不能显示图片的数据包:
uctcp/ip 数据包ourdev_468397.gif(文件大小:537K,只有400K以内的图片才能直接显示) (原文件名:uctcp1.gif)
下面是 HTTP的图片的头信息和图片数据的数据包清单:
(1)HTTP的图片的头信息:
Packet Info
Packet Number: 15
Flags: 0x00000000
Status: 0x00000000
Packet Length: 228
Timestamp: 15:29:57.295196000 08/07/2009
Ethernet Header
Destination: 00:24:8C:7A:A9:F5 [0-5]
Source: 00:50:C2:25:61:34 Ieee Registration Authority:25:61:34 [6-11]
Protocol Type: 0x0800 IP [12-13]
IP Header - Internet Protocol Datagram
Version: 4 [14 Mask 0xF0]
Header Length: 5 (20 bytes) [14 Mask 0x0F]
Differentiated Services:%00000000 [15]
0000 00.. Default
.... ..00 Not-ECT
Total Length: 210 [16-17]
Identifier: 7 [18-19]
Fragmentation Flags: %000 [20 Mask 0xE0]
0.. Reserved
.0. May Fragment
..0 Last Fragment
Fragment Offset: 0 (0 bytes) [20-21 Mask 0x1FFF]
Time To Live: 128 [22]
Protocol: 6 TCP - Transmission Control Protocol [23]
Header Checksum: 0xB7EC [24-25]
Source IP Address: 192.168.0.174 [26-29]
Dest. IP Address: 192.168.0.52 [30-33]
TCP - Transport Control Protocol
Source Port: 80 http [34-35]
Destination Port: 2094 nbx-au [36-37]
Sequence Number: 70528 [38-41]
Ack Number: 1782436267 [42-45]
TCP Offset: 5 (20 bytes) [46 Mask 0xF0]
Reserved: %0000 [46 Mask 0x0F]
TCP Flags: %00011000 ...AP... [47]
0... .... (No Congestion Window Reduction)
.0.. .... (No ECN-Echo)
..0. .... (No Urgent pointer)
...1 .... Ack
.... 1... Push
.... .0.. (No Reset)
.... ..0. (No SYN)
.... ...0 (No FIN)
Window: 3778 [48-49]
TCP Checksum: 0x5353 [50-51]
Urgent Pointer: 0 [52-53]
No TCP Options
HTTP - Hyper Text Transfer Protocol
HTTP Version: HTTP/1.0 [54-61]
HTTP Status: 200 [62-64]
HTTP Reason: OK<CR><LF> [66-67]
Date: Mon, 24 Nov 2003 01:24:17 GMT<CR><LF> [71-104]
Server: microHttp/1.0 Zlgmcu Corporation<CR><LF> [108-146]
Accept-Ranges: bytes<CR><LF> [150-168]
Connection: Keep-Close<CR><LF> [172-192]
Content-Type: image/bmp<CR><LF><CR><LF><NUL> [196-217]
FCS - Frame Check Sequence
FCS: 0x3F3DB3CF Calculated
(2)图片传输的数据包:
Packet Info
Packet Number: 16
Flags: 0x00000000
Status: 0x00000000
Packet Length: 500
Timestamp: 15:29:57.299183000 08/07/2009
Ethernet Header
Destination: 00:24:8C:7A:A9:F5 [0-5]
Source: 00:50:C2:25:61:34 Ieee Registration Authority:25:61:34 [6-11]
Protocol Type: 0x0800 IP [12-13]
IP Header - Internet Protocol Datagram
Version: 4 [14 Mask 0xF0]
Header Length: 5 (20 bytes) [14 Mask 0x0F]
Differentiated Services:%00000000 [15]
0000 00.. Default
.... ..00 Not-ECT
Total Length: 482 [16-17]
Identifier: 8 [18-19]
Fragmentation Flags: %000 [20 Mask 0xE0]
0.. Reserved
.0. May Fragment
..0 Last Fragment
Fragment Offset: 0 (0 bytes) [20-21 Mask 0x1FFF]
Time To Live: 128 [22]
Protocol: 6 TCP - Transmission Control Protocol [23]
Header Checksum: 0xB6DB [24-25]
Source IP Address: 192.168.0.174 [26-29]
Dest. IP Address: 192.168.0.52 [30-33]
TCP - Transport Control Protocol
Source Port: 80 http [34-35]
Destination Port: 2094 nbx-au [36-37]
Sequence Number: 70698 [38-41]
Ack Number: 1782436267 [42-45]
TCP Offset: 5 (20 bytes) [46 Mask 0xF0]
Reserved: %0000 [46 Mask 0x0F]
TCP Flags: %00011001 ...AP..F [47]
0... .... (No Congestion Window Reduction)
.0.. .... (No ECN-Echo)
..0. .... (No Urgent pointer)
...1 .... Ack
.... 1... Push
.... .0.. (No Reset)
.... ..0. (No SYN)
.... ...1 FIN
Window: 3778 [48-49]
TCP Checksum: 0xDF51 [50-51]
Urgent Pointer: 0 [52-53]
No TCP Options
HTTP - Hyper Text Transfer Protocol
Continuation of existing HTTP stream
Binary Data:
BM........v...(. 42 4D B6 01 00 00 00 00 00 00 76 00 00 00 28 00 [54-69]
................ 00 00 1A 00 00 00 14 00 00 00 01 00 04 00 00 00 [70-85]
..@............. 00 00 40 01 00 00 C4 0E 00 00 C4 0E 00 00 00 00 [86-101]
................ 00 00 00 00 00 00 00 00 00 00 00 00 80 00 00 80 [102-117]
................ 00 00 00 80 80 00 80 00 00 00 80 00 80 00 80 80 [118-133]
................ 00 00 C0 C0 C0 00 80 80 80 00 00 00 FF 00 00 FF [134-149]
................ 00 00 00 FF FF 00 FF 00 00 00 FF 00 FF 00 FF FF [150-165]
................ 00 00 FF FF FF 00 FF FF FF FF FF FF FF FF FF FF [166-181]
................ FF FF FF 00 00 00 FF FF FF FF FF FF FF FF FF FF [182-197]
................ FF FF FF 00 00 00 FF FF FF FF FF FF FF FF FF FF [198-213]
................ FF FF FF 00 00 00 FF FF FF FF FF FF FF FF FF FF [214-229]
..............f. FF FF FF 00 00 00 FF FF FF FF FF FF FF F6 66 FF [230-245]
...............o FF FF FF 00 00 00 FF FF FF FF FF FF FF FF FF 6F [246-261]
.........ffoo.ff FF FF FF 00 00 00 FF FF FF 66 66 6F 6F FF 66 66 [262-277]
............o... FF FF FF 00 00 00 FF FF FF F6 FF FF 6F F6 FF F6 [278-293]
..........o.o... FF FF FF 00 00 00 FF FF FF FF 6F FF 6F F6 FF F6 [294-309]
................ FF FF FF 00 00 00 FF FF FF FF F6 FF F6 F6 FF FF [310-325]
o..........o..o. 6F FF FF 00 00 00 FF FF FF FF FF 6F F6 FF 6F FF [326-341]
o.........ff...f 6F FF FF 00 00 00 FF FF FF F6 66 66 F6 FF F6 66 [342-357]
o............o.. 6F FF FF 00 00 00 FF FF FF FF FF FF FF 6F FF FF [358-373]
.............o.. FF FF FF 00 00 00 FF FF FF FF FF FF FF 6F FF FF [374-389]
.............o.. FF FF FF 00 00 00 FF FF FF FF FF FF FF 6F FF FF [390-405]
................ FF FF FF 00 00 00 FF FF FF FF FF FF FF FF FF FF [406-421]
................ FF FF FF 00 00 00 FF FF FF FF FF FF FF FF FF FF [422-437]
................ FF FF FF 00 00 00 FF FF FF FF FF FF FF FF FF FF [438-453]
................ FF FF FF 00 00 00 FF FF FF FF FF FF FF FF FF FF [454-469]
................ FF FF FF 00 00 00 FF FF FF FF FF FF FF FF FF FF [470-485]
.......... FF FF FF 00 00 00 00 00 00 00 [486-495]
FCS - Frame Check Sequence
FCS: 0xAC53E1C3 Calculated
以上为UC/TCPIP发送一个简单页面的数据包,经过分析数据包,其实可以看到发送到浏览器端的HTTP的信息头以及图片的数据都是一样的,但是使用ZLG/IP的就可以看到图片,而使用UCTCP/IP测试N次都显示不出图片,我试了多次单机对单机测试同样收不到图片。
不知道是怎么回事,请各路高手给指点指点吧。
2009-08-07 PM |
阿莫论坛20周年了!感谢大家的支持与爱护!!
曾经有一段真挚的爱情摆在我的面前,我没有珍惜,现在想起来,还好我没有珍惜……
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