通过 ndiswrapper 加载 usb 网卡 wna3100 的驱动上网。但是发现网络非常不稳定。具体症状是：
1、ping 127.0.0.1 是通的
2、ping 自己的内网ip 是通的
3、ping 其他内网ip 不通
下面是正常和非正常情况的具体数据。
分别是
ifconfig
route -n
iwlist scan
dhclient -v wlan0
的执行结果
正常情况：
非正常情况：wlan0 Link encap:Ethernet HWaddr 00:8e:f2:8c:82:59
inet addr:192.168.0.119 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::28e:f2ff:fe8c:8259/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:150 errors:0 dropped:0 overruns:0 frame:0
TX packets:213 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:48168 (48.1 KB) TX bytes:34999 (34.9 KB)
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 wlan0
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 wlan0
172.16.93.0 0.0.0.0 255.255.255.0 U 0 0 0 vmnet1
172.16.233.0 0.0.0.0 255.255.255.0 U 0 0 0 vmnet8
192.168.0.0 0.0.0.0 255.255.255.0 U 2 0 0 wlan0
wlan0 Scan completed :
Cell 01 - Address: EC:17:2F:54:34:9C
ESSID:"miao"
Protocol:IEEE 802.11g
Mode:Master
Frequency:2.437 GHz (Channel 6)
Quality:68/100 Signal level:-52 dBm Noise level:-96 dBm
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
11 Mb/s; 12 Mb/s; 18 Mb/s
Extra:bcn_int=100
Extra:atim=0
IE: Unknown: 00046D69616F
IE: Unknown: 010882848B960C121824
IE: Unknown: 030106
IE: Unknown: 050400010000
IE: Unknown: 0706555320010D14
IE: Unknown: 200100
IE: Unknown: 2A0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 32043048606C
IE: Unknown: 2D1A6E1003FFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1606051500000000000000000000000000000000000000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101030003A4000027A4000042435E0062322F00
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD0E0050F204104A0001101044000102
IE: Unknown: 331A6E1003FFFF000000000000000000000000000000000000000000
IE: Unknown: 341606051500000000000000000000000000000000000000
IE: Unknown: DD800050F204104A0001101044000102103B0001031047001000000000000010000000EC172F54349C1021000754502D4C494E4B10230009544C2D57523834304E10240003312E3010420003312E301054000800060050F204000110110018576972656C657373204E20526F757465722057523834304E100800020086103C000101
Cell 02 - Address: 8C:21:0A:AF:DE:78
ESSID:"TP-LINK_AFDE78"
Protocol:IEEE 802.11g
Mode:Master
Frequency:2.437 GHz (Channel 6)
Quality:29/100 Signal level:-77 dBm Noise level:-96 dBm
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Extra:bcn_int=100
Extra:atim=0
IE: Unknown: 000E54502D4C494E4B5F414644453738
IE: Unknown: 010882848B960C121824
IE: Unknown: 030106
IE: Unknown: 0706555320010D14
IE: Unknown: 2A0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32043048606C
IE: Unknown: 2D1A6E1003FF00000000000000000000000000000000000000000000
IE: Unknown: 331A6E1003FF00000000000000000000000000000000000000000000
IE: Unknown: 3D1606051100000000000000000000000000000000000000
IE: Unknown: 341606051100000000000000000000000000000000000000
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101030003A4000027A4000042435E0062322F00
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD800050F204104A0001101044000102103B00010310470010000000000000100000008C210AAFDE781021000754502D4C494E4B10230009544C2D57523734304E10240003312E3010420003312E301054000800060050F204000110110018576972656C657373204E20526F757465722057523734304E100800020086103C000101
Cell 03 - Address: 18:80:F5:9B:94:00
ESSID:"ChinaNet-CwJc"
Protocol:IEEE 802.11g
Mode:Master
Frequency:2.412 GHz (Channel 1)
Quality:25/100 Signal level:-80 dBm Noise level:-96 dBm
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Extra:bcn_int=100
Extra:atim=0
IE: Unknown: 000D4368696E614E65742D43774A63
IE: Unknown: 010882848B962430486C
IE: Unknown: 030101
IE: Unknown: 2A0102
IE: Unknown: 2F0102
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: 2D1A7C181BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1601001700000000000000000000000000000000000000
IE: Unknown: DD7B0050F204104A00011010440001021041000100103B00010310470010E7394B977D5E82610A161FEB62B243B41021000842726F6164636F6D1023000842726F6164636F6D1024000631323334353610420004313233341054000800060050F20400011011000A42726F6164636F6D4150100800020088103C000101
IE: Unknown: DD090010180205F0040000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
Cell 04 - Address: 00:B0:0C:30:A0:EC
ESSID:"TENDA"
Protocol:IEEE 802.11g
Mode:Master
Frequency:2.437 GHz (Channel 6)
Quality:20/100 Signal level:-83 dBm Noise level:-96 dBm
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Extra:bcn_int=100
Extra:atim=0
IE: Unknown: 000554454E4441
IE: Unknown: 010482848B96
IE: Unknown: 030106
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
IE: Unknown: 0406000200000000
IE: Unknown: 2A0100
IE: Unknown: 32080C1218243048606C
Cell 05 - Address: B8:55:10:6B:DF:23
ESSID:"skyworth"
Protocol:IEEE 802.11g
Mode:Master
Frequency:2.437 GHz (Channel 6)
Quality:18/100 Signal level:-84 dBm Noise level:-96 dBm
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Extra:bcn_int=100
Extra:atim=0
IE: Unknown: 0008736B79776F727468
IE: Unknown: 010882848B960C121824
IE: Unknown: 030106
IE: Unknown: 050400010000
IE: Unknown: 2A0104
IE: Unknown: 32043048606C
IE: Unknown: 2D1A6E181EFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1606070300000000000000000000000000000000000000
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
IE: Unknown: DD1E00904C336E181EFFFF000000000000000000000000000000000000000000
IE: Unknown: DD1A00904C3406070300000000000000000000000000000000000000
IE: Unknown: DD0600E04C020160
Internet Systems Consortium DHCP Client 4.1-ESV-R4
Copyright 2004-2011 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/wlan0/00:8e:f2:8c:82:59
Sending on LPF/wlan0/00:8e:f2:8c:82:59
Sending on Socket/fallback
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3
DHCPREQUEST of 192.168.0.119 on wlan0 to 255.255.255.255 port 67
DHCPOFFER of 192.168.0.119 from 192.168.0.1
DHCPACK of 192.168.0.119 from 192.168.0.1
RTNETLINK answers: File exists
bound to 192.168.0.119 -- renewal in 2147483648 seconds.
先谢过了。wlan0 Link encap:Ethernet HWaddr 00:8e:f2:8c:82:59
inet addr:192.168.0.119 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::28e:f2ff:fe8c:8259/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:130974 errors:0 dropped:0 overruns:0 frame:0
TX packets:68745 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:195795850 (195.7 MB) TX bytes:4777134 (4.7 MB)
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 wlan0
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 wlan0
172.16.93.0 0.0.0.0 255.255.255.0 U 0 0 0 vmnet1
172.16.233.0 0.0.0.0 255.255.255.0 U 0 0 0 vmnet8
192.168.0.0 0.0.0.0 255.255.255.0 U 2 0 0 wlan0
wlan0 Scan completed :
Cell 01 - Address: EC:17:2F:54:34:9C
ESSID:"miao"
Protocol:IEEE 802.11g
Mode:Master
Frequency:2.437 GHz (Channel 6)
Quality:70/100 Signal level:-51 dBm Noise level:-96 dBm
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
11 Mb/s; 12 Mb/s; 18 Mb/s
Extra:bcn_int=100
Extra:atim=0
IE: Unknown: 00046D69616F
IE: Unknown: 010882848B960C121824
IE: Unknown: 030106
IE: Unknown: 050400010000
IE: Unknown: 0706555320010D14
IE: Unknown: 200100
IE: Unknown: 2A0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 32043048606C
IE: Unknown: 2D1A6E1003FFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1606051500000000000000000000000000000000000000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101030003A4000027A4000042435E0062322F00
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD0E0050F204104A0001101044000102
IE: Unknown: 331A6E1003FFFF000000000000000000000000000000000000000000
IE: Unknown: 341606051500000000000000000000000000000000000000
IE: Unknown: DD800050F204104A0001101044000102103B0001031047001000000000000010000000EC172F54349C1021000754502D4C494E4B10230009544C2D57523834304E10240003312E3010420003312E301054000800060050F204000110110018576972656C657373204E20526F757465722057523834304E100800020086103C000101
Cell 02 - Address: 00:15:E9:E3:18:F5
ESSID:"dlink"
Protocol:IEEE 802.11g
Mode:Master
Frequency:2.437 GHz (Channel 6)
Quality:25/100 Signal level:-80 dBm Noise level:-96 dBm
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Extra:bcn_int=100
Extra:atim=0
IE: Unknown: 0005646C696E6B
IE: Unknown: 010482848B96
IE: Unknown: 030106
IE: Unknown: 2A0100
IE: Unknown: 32080C1218243048606C
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
Cell 03 - Address: 8C:21:0A:AF:DE:78
ESSID:"TP-LINK_AFDE78"
Protocol:IEEE 802.11g
Mode:Master
Frequency:2.437 GHz (Channel 6)
Quality:29/100 Signal level:-77 dBm Noise level:-96 dBm
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Extra:bcn_int=100
Extra:atim=0
IE: Unknown: 000E54502D4C494E4B5F414644453738
IE: Unknown: 010882848B960C121824
IE: Unknown: 030106
IE: Unknown: 0706555320010D14
IE: Unknown: 2A0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32043048606C
IE: Unknown: 2D1A6E1003FF00000000000000000000000000000000000000000000
IE: Unknown: 331A6E1003FF00000000000000000000000000000000000000000000
IE: Unknown: 3D1606051100000000000000000000000000000000000000
IE: Unknown: 341606051100000000000000000000000000000000000000
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101030003A4000027A4000042435E0062322F00
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD800050F204104A0001101044000102103B00010310470010000000000000100000008C210AAFDE781021000754502D4C494E4B10230009544C2D57523734304E10240003312E3010420003312E301054000800060050F204000110110018576972656C657373204E20526F757465722057523734304E100800020086103C000101
Internet Systems Consortium DHCP Client 4.1-ESV-R4
Copyright 2004-2011 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/wlan0/00:8e:f2:8c:82:59
Sending on LPF/wlan0/00:8e:f2:8c:82:59
Sending on Socket/fallback
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3
send_packet: No buffer space available
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7
send_packet: No buffer space available
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 12
send_packet: No buffer space available