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 文章标题 : 无线路由奇怪的问题
帖子发表于 : 2008-07-01 13:52 
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注册: 2007-07-06 11:56
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这个问题跟linux没有多大的关系。在此发帖是因为这里高手比较多。

现在我有一个无线路由器FAST FW54R。以前用电信ADSL,路由正常,现在用上海有线通宽带就出问题了。
如果有线通宽带直连电脑,上网速度是正常的,然而接到路由器上面以后,无论是无线路由部分还是LAN部分速度都相当的慢(下载东西是0.1kb/s),网页都很难打开。而且WAN指示灯一直闪烁,貌似一直在收发数据。无线路由设了密码,并且侦测无其他电脑接入。
路由器上面的防火墙打开和关闭速度是一样的,DoS攻击防火墙打开和关闭速度还是一样。DNS和IP都是自动设置的,看了以后也没什么问题。询问ISP服务商称路由自便。这是怎么回事啊???


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2 楼 
 文章标题 : Re: 无线路由奇怪的问题
帖子发表于 : 2008-07-01 15:12 

注册: 2008-06-29 21:41
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hikui 写道:
这个问题跟linux没有多大的关系。在此发帖是因为这里高手比较多。

现在我有一个无线路由器FAST FW54R。以前用电信ADSL,路由正常,现在用上海有线通宽带就出问题了。
如果有线通宽带直连电脑,上网速度是正常的,然而接到路由器上面以后,无论是无线路由部分还是LAN部分速度都相当的慢(下载东西是0.1kb/s),网页都很难打开。而且WAN指示灯一直闪烁,貌似一直在收发数据。无线路由设了密码,并且侦测无其他电脑接入。
路由器上面的防火墙打开和关闭速度是一样的,DoS攻击防火墙打开和关闭速度还是一样。DNS和IP都是自动设置的,看了以后也没什么问题。询问ISP服务商称路由自便。这是怎么回事啊???


答案就在你说的问题当中。
引用:
如果有线通宽带直连电脑,上网速度是正常的,然而接到路由器上面以后,无论是无线路由部分还是LAN部分速度都相当的慢(下载东西是0.1kb/s)


有可能的问题是:
* 你的路由器有问题
* 你局域网里有电脑有问题
* 有电脑中毒了,占用带宽资源很大。
* 物理链路有问题

希望有帮助。:)


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3 楼 
 文章标题 :
帖子发表于 : 2008-07-01 18:53 
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路由器前几天接在ADSL上面用的正常,路由器问题应该可以排除了。
局域网里面两台电脑速度都一样慢,应该不会两台都出故障,况且直连网速都是很快的。所以电脑中毒情况也不太可能。
物理链路是啥,不清楚。


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帖子发表于 : 2008-07-01 20:03 

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对不起,从你提供的信息我的分析就是这些。

如果找到原因把它贴上来。:)

引用:
物理链路是啥,不清楚。


物理链路是网络模型里最低的两层:物理层和链路层。

我的意思是:有可能你的网线或者网卡有问题。


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 文章标题 :
帖子发表于 : 2008-07-02 9:46 
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部分路由器日志
而且我发现路由器获取IP的速度好像很慢

1 39880:Flags was changed to be 0x0.
2 39940:Flags was changed to be 0x0.
3 39973:DHCP request timeout.
4 39975:DHCP client tx discover(B).
5 40003:Flags was changed to be 0x0.
6 40063:Flags was changed to be 0x0.
7 40096:DHCP request timeout.
8 40098:DHCP client tx discover(B).
9 40126:Flags was changed to be 0x0.
10 40186:Flags was changed to be 0x0.
11 40219:DHCP request timeout.
12 40221:DHCP client tx discover(B).
13 40249:Flags was changed to be 0x0.
14 40309:Flags was changed to be 0x0.
15 40342:DHCP request timeout.
16 40344:DHCP client tx discover(B).
17 40372:Flags was changed to be 0x0.
18 40432:Flags was changed to be 0x0.
19 40465:DHCP request timeout.
20 40467:DHCP client tx discover(B).
21 40495:Flags was changed to be 0x0.
22 40555:Flags was changed to be 0x0.
23 40588:DHCP request timeout.
24 40590:DHCP client tx discover(B).
25 40618:Flags was changed to be 0x0.
26 40678:Flags was changed to be 0x0.
27 40711:DHCP request timeout.
28 40713:DHCP client tx discover(B).
29 40741:Flags was changed to be 0x0.
30 40801:Flags was changed to be 0x0.
31 40834:DHCP request timeout.
32 40836:DHCP client tx discover(B).
33 40864:Flags was changed to be 0x0.
34 40924:Flags was changed to be 0x0.
35 40957:DHCP request timeout.
36 40959:DHCP client tx discover(B).
37 40987:Flags was changed to be 0x0.
38 41047:Flags was changed to be 0x0.
39 41080:DHCP request timeout.
40 41082:DHCP client tx discover(B).
41 41110:Flags was changed to be 0x0.
42 41170:Flags was changed to be 0x0.
43 41203:DHCP request timeout.
44 41205:DHCP client tx discover(B).
45 41233:Flags was changed to be 0x0.
46 41293:Flags was changed to be 0x0.
47 41326:DHCP request timeout.
48 41328:DHCP client tx discover(B).
49 41356:Flags was changed to be 0x0.
50 41416:Flags was changed to be 0x0.
51 41449:DHCP request timeout.
52 41451:DHCP client tx discover(B).
53 41479:Flags was changed to be 0x0.
54 41539:Flags was changed to be 0x0.
55 41572:DHCP request timeout.
56 41574:DHCP client tx discover(B).
57 41602:Flags was changed to be 0x0.
58 41662:Flags was changed to be 0x0.
59 41695:DHCP request timeout.
60 41697:DHCP client tx discover(B).
61 41725:Flags was changed to be 0x0.
62 41785:Flags was changed to be 0x0.
63 41818:DHCP request timeout.
64 41820:DHCP client tx discover(B).
65 41848:Flags was changed to be 0x0.
66 41908:Flags was changed to be 0x0.
67 41941:DHCP request timeout.
68 41943:DHCP client tx discover(B).
69 41971:Flags was changed to be 0x0.
70 42031:Flags was changed to be 0x0.
71 42064:DHCP request timeout.
72 42066:DHCP client tx discover(B).
73 42094:Flags was changed to be 0x0.
74 42154:Flags was changed to be 0x0.
75 42187:DHCP request timeout.
76 42189:DHCP client tx discover(B).
77 42217:Flags was changed to be 0x0.
78 42277:Flags was changed to be 0x0.
79 42310:DHCP request timeout.
80 42312:DHCP client tx discover(B).
81 42340:Flags was changed to be 0x0.
82 42400:Flags was changed to be 0x0.
83 42433:DHCP request timeout.
84 42435:DHCP client tx discover(B).
85 42463:Flags was changed to be 0x0.
86 42523:Flags was changed to be 0x0.
87 42556:DHCP request timeout.
88 42558:DHCP client tx discover(B).
89 42586:Flags was changed to be 0x0.
90 42646:Flags was changed to be 0x0.
91 42679:DHCP request timeout.
92 42681:DHCP client tx discover(B).
93 42709:Flags was changed to be 0x0.
94 42769:Flags was changed to be 0x0.
95 42802:DHCP request timeout.
96 42804:DHCP client tx discover(B).
97 42832:Flags was changed to be 0x0.
98 42892:Flags was changed to be 0x0.
99 42925:DHCP request timeout.
100 42927:DHCP client tx discover(B).
101 42955:Flags was changed to be 0x0.
102 43015:Flags was changed to be 0x0.
103 43048:DHCP request timeout.
104 43050:DHCP client tx discover(B).
105 43078:Flags was changed to be 0x0.
106 43138:Flags was changed to be 0x0.
107 43171:DHCP request timeout.
108 43173:DHCP client tx discover(B).
109 43201:Flags was changed to be 0x0.
110 43261:Flags was changed to be 0x0.
111 43294:DHCP request timeout.
112 43296:DHCP client tx discover(B).
113 43324:Flags was changed to be 0x0.
114 43384:Flags was changed to be 0x0.
115 43417:DHCP request timeout.
116 43419:DHCP client tx discover(B).
117 43447:Flags was changed to be 0x0.
118 43507:Flags was changed to be 0x0.
119 43540:DHCP request timeout.
120 43542:DHCP client tx discover(B).
121 43570:Flags was changed to be 0x0.
122 43630:Flags was changed to be 0x0.
123 43663:DHCP request timeout.
124 43665:DHCP client tx discover(B).
125 43693:Flags was changed to be 0x0.
126 43753:Flags was changed to be 0x0.
127 43786:DHCP request timeout.
128 43788:DHCP client tx discover(B).
129 43816:Flags was changed to be 0x0.
130 43876:Flags was changed to be 0x0.
131 43909:DHCP request timeout.
132 43911:DHCP client tx discover(B).
133 43939:Flags was changed to be 0x0.
134 43999:Flags was changed to be 0x0.
135 44032:DHCP request timeout.
136 44034:DHCP client tx discover(B).
137 44062:Flags was changed to be 0x0.
138 44122:Flags was changed to be 0x0.
139 44155:DHCP request timeout.
140 44157:DHCP client tx discover(B).
141 44185:Flags was changed to be 0x0.
142 44245:Flags was changed to be 0x0.
143 44278:DHCP request timeout.
144 44280:DHCP client tx discover(B).
145 44308:Flags was changed to be 0x0.
146 44368:Flags was changed to be 0x0.
147 44401:DHCP request timeout.
148 44403:DHCP client tx discover(B).
149 44431:Flags was changed to be 0x0.
150 44491:Flags was changed to be 0x0.
151 44524:DHCP request timeout.
152 44526:DHCP client tx discover(B).
153 44554:Flags was changed to be 0x0.
154 44614:Flags was changed to be 0x0.
155 44647:DHCP request timeout.
156 44649:DHCP client tx discover(B).
157 44677:Flags was changed to be 0x0.
158 44737:Flags was changed to be 0x0.
159 44770:DHCP request timeout.
160 44772:DHCP client tx discover(B).
161 44800:Flags was changed to be 0x0.
162 44860:Flags was changed to be 0x0.
163 44893:DHCP request timeout.
164 44895:DHCP client tx discover(B).
165 44923:Flags was changed to be 0x0.
166 44983:Flags was changed to be 0x0.
167 45016:DHCP request timeout.
168 45018:DHCP client tx discover(B).
169 45046:Flags was changed to be 0x0.
170 45106:Flags was changed to be 0x0.
171 45139:DHCP request timeout.
172 45141:DHCP client tx discover(B).
173 45169:Flags was changed to be 0x0.
174 45229:Flags was changed to be 0x0.
175 45262:DHCP request timeout.
176 45264:DHCP client tx discover(B).
177 45292:Flags was changed to be 0x0.
178 45352:Flags was changed to be 0x0.
179 45385:DHCP request timeout.
180 45387:DHCP client tx discover(B).
181 45415:Flags was changed to be 0x0.
182 45475:Flags was changed to be 0x0.
183 45508:DHCP request timeout.
184 45510:DHCP client tx discover(B).
185 45538:Flags was changed to be 0x0.
186 45598:Flags was changed to be 0x0.
187 45631:DHCP request timeout.
188 45633:DHCP client tx discover(B).
189 45661:Flags was changed to be 0x0.
190 45721:Flags was changed to be 0x0.
191 45754:DHCP request timeout.
192 45756:DHCP client tx discover(B).
193 45784:Flags was changed to be 0x0.
194 45844:Flags was changed to be 0x0.
195 45877:DHCP request timeout.
196 45879:DHCP client tx discover(B).
197 45907:Flags was changed to be 0x0.
198 45967:Flags was changed to be 0x0.
199 46000:DHCP request timeout.
200 46002:DHCP client tx discover(B).
201 46030:Flags was changed to be 0x0.
202 46090:Flags was changed to be 0x0.
203 46123:DHCP request timeout.
204 46125:DHCP client tx discover(B).
205 46153:Flags was changed to be 0x0.
206 46213:Flags was changed to be 0x0.
207 46246:DHCP request timeout.
208 46248:DHCP client tx discover(B).
209 46276:Flags was changed to be 0x0.
210 46336:Flags was changed to be 0x0.
211 46369:DHCP request timeout.
212 46371:DHCP client tx discover(B).
213 46399:Flags was changed to be 0x0.
214 46459:Flags was changed to be 0x0.
215 46492:DHCP request timeout.
216 46494:DHCP client tx discover(B).
217 46522:Flags was changed to be 0x0.
218 46582:Flags was changed to be 0x0.
219 46615:DHCP request timeout.
220 46617:DHCP client tx discover(B).
221 46645:Flags was changed to be 0x0.
222 46705:Flags was changed to be 0x0.
223 46738:DHCP request timeout.
224 46740:DHCP client tx discover(B).
225 46768:Flags was changed to be 0x0.
226 46828:Flags was changed to be 0x0.
227 46861:DHCP request timeout.
228 46863:DHCP client tx discover(B).
229 46891:Flags was changed to be 0x0.
230 46951:Flags was changed to be 0x0.
231 46984:DHCP request timeout.
232 46986:DHCP client tx discover(B).
233 47014:Flags was changed to be 0x0.
234 47074:Flags was changed to be 0x0.
235 47107:DHCP request timeout.
236 47109:DHCP client tx discover(B).
237 47137:Flags was changed to be 0x0.
238 47197:Flags was changed to be 0x0.
239 47230:DHCP request timeout.
240 47232:DHCP client tx discover(B).
241 47260:Flags was changed to be 0x0.
242 47320:Flags was changed to be 0x0.
243 47353:DHCP request timeout.
244 47355:DHCP client tx discover(B).
245 47383:Flags was changed to be 0x0.
246 47443:Flags was changed to be 0x0.
247 47476:DHCP request timeout.
248 47478:DHCP client tx discover(B).
249 47506:Flags was changed to be 0x0.
250 47566:Flags was changed to be 0x0.
251 47599:DHCP request timeout.
252 47601:DHCP client tx discover(B).
253 47629:Flags was changed to be 0x0.
254 47689:Flags was changed to be 0x0.
255 47722:DHCP request timeout.
256 47724:DHCP client tx discover(B).
257 47752:Flags was changed to be 0x0.
258 47812:Flags was changed to be 0x0.
259 47845:DHCP request timeout.
260 47847:DHCP client tx discover(B).
261 47875:Flags was changed to be 0x0.
262 47935:Flags was changed to be 0x0.
263 47968:DHCP request timeout.
264 47970:DHCP client tx discover(B).
265 47998:Flags was changed to be 0x0.
266 48058:Flags was changed to be 0x0.
267 48091:DHCP request timeout.
268 48093:DHCP client tx discover(B).
269 48121:Flags was changed to be 0x0.
270 48181:Flags was changed to be 0x0.
271 48214:DHCP request timeout.
272 48216:DHCP client tx discover(B).
273 48244:Flags was changed to be 0x0.
274 48304:Flags was changed to be 0x0.
275 48337:DHCP request timeout.
276 48339:DHCP client tx discover(B).
277 48367:Flags was changed to be 0x0.
278 48427:Flags was changed to be 0x0.
279 48460:DHCP request timeout.
280 48462:DHCP client tx discover(B).
281 48490:Flags was changed to be 0x0.
282 48550:Flags was changed to be 0x0.
283 48583:DHCP request timeout.
284 48585:DHCP client tx discover(B).
285 48613:Flags was changed to be 0x0.
286 48673:Flags was changed to be 0x0.
287 48706:DHCP request timeout.
288 48708:DHCP client tx discover(B).
289 48736:Flags was changed to be 0x0.
290 48796:Flags was changed to be 0x0.
291 48829:DHCP request timeout.
292 48831:DHCP client tx discover(B).
293 48859:Flags was changed to be 0x0.
294 48919:Flags was changed to be 0x0.
295 48952:DHCP request timeout.
296 48954:DHCP client tx discover(B).
297 48982:Flags was changed to be 0x0.
298 49042:Flags was changed to be 0x0.
299 49075:DHCP request timeout.
300 49077:DHCP client tx discover(B).
301 49105:Flags was changed to be 0x0.
302 49165:Flags was changed to be 0x0.
303 49198:DHCP request timeout.
304 49200:DHCP client tx discover(B).
305 49228:Flags was changed to be 0x0.
306 49288:Flags was changed to be 0x0.
307 49321:DHCP request timeout.
308 49323:DHCP client tx discover(B).
309 49351:Flags was changed to be 0x0.
310 49411:Flags was changed to be 0x0.
311 49444:DHCP request timeout.
312 49446:DHCP client tx discover(B).
313 49474:Flags was changed to be 0x0.
314 49534:Flags was changed to be 0x0.
315 49567:DHCP request timeout.
316 49569:DHCP client tx discover(B).
317 49597:Flags was changed to be 0x0.
318 49657:Flags was changed to be 0x0.
319 49690:DHCP request timeout.
320 49692:DHCP client tx discover(B).
321 49720:Flags was changed to be 0x0.
322 49780:Flags was changed to be 0x0.
323 49813:DHCP request timeout.
324 49815:DHCP client tx discover(B).
325 49843:Flags was changed to be 0x0.
326 49903:Flags was changed to be 0x0.
327 49936:DHCP request timeout.
328 49938:DHCP client tx discover(B).
329 49966:Flags was changed to be 0x0.
330 50026:Flags was changed to be 0x0.
331 50059:DHCP request timeout.
332 50061:DHCP client tx discover(B).
333 50089:Flags was changed to be 0x0.
334 50149:Flags was changed to be 0x0.
335 50182:DHCP request timeout.
336 50184:DHCP client tx discover(B).
337 50212:Flags was changed to be 0x0.
338 50272:Flags was changed to be 0x0.
339 50305:DHCP request timeout.
340 50307:DHCP client tx discover(B).
341 50335:Flags was changed to be 0x0.
342 50395:Flags was changed to be 0x0.
343 50428:DHCP request timeout.
344 50430:DHCP client tx discover(B).
345 50458:Flags was changed to be 0x0.
346 50518:Flags was changed to be 0x0.
347 50551:DHCP request timeout.
348 50553:DHCP client tx discover(B).
349 50581:Flags was changed to be 0x0.
350 50641:Flags was changed to be 0x0.
351 50674:DHCP request timeout.
352 50676:DHCP client tx discover(B).
353 50704:Flags was changed to be 0x0.
354 50764:Flags was changed to be 0x0.
355 50797:DHCP request timeout.
356 50799:DHCP client tx discover(B).
357 50827:Flags was changed to be 0x0.
358 50887:Flags was changed to be 0x0.
359 50920:DHCP request timeout.
360 50922:DHCP client tx discover(B).
361 50950:Flags was changed to be 0x0.
362 51010:Flags was changed to be 0x0.
363 51043:DHCP request timeout.
364 51045:DHCP client tx discover(B).
365 51073:Flags was changed to be 0x0.
366 51133:Flags was changed to be 0x0.
367 51166:DHCP request timeout.
368 51168:DHCP client tx discover(B).
369 51196:Flags was changed to be 0x0.
370 51256:Flags was changed to be 0x0.
371 51289:DHCP request timeout.
372 51291:DHCP client tx discover(B).
373 51319:Flags was changed to be 0x0.
374 51379:Flags was changed to be 0x0.
375 51412:DHCP request timeout.
376 51414:DHCP client tx discover(B).
377 51442:Flags was changed to be 0x0.
378 51502:Flags was changed to be 0x0.
379 51535:DHCP request timeout.
380 51537:DHCP client tx discover(B).
381 51565:Flags was changed to be 0x0.
382 51625:Flags was changed to be 0x0.
383 51658:DHCP request timeout.
384 51660:DHCP client tx discover(B).
385 51664:DHCP client read, totlen = 368(1048).
386 51664:DHCP client tx request.
387 51693:DHCP client read, totlen = 368(1048).
388 51703:DHCP client tx discover(B).
389 51703:DHCP client read, totlen = 368(1048).
390 51703:DHCP client tx request.
391 51704:DHCP request timeout.
392 51704:DHCP client read, totlen = 368(1048).
393 51706:DHCP 网络配置完成.
394 51779:DHCP client tx discover(B).
395 51779:DHCP client read, totlen = 368(1048).
396 51779:DHCP client tx request.
397 51779:DHCP client read, totlen = 368(1048).
398 51780:DHCP request timeout.
399 51781:DHCP 网络配置完成.
400 51806:DHCPS: 1:0x001f3c5b6ba5, 192.168.1.101, ACK in request.
[/quote]


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6 楼 
 文章标题 :
帖子发表于 : 2008-07-02 11:40 

注册: 2008-06-29 21:41
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从你的LOG来看,如果其中的DHCP client指的是你的路由器的话:

380 51537:DHCP client tx discover(B)./* 先是你的路由器发了一个DHCP discover的请求(B为broadcast).*/
381 51565:Flags was changed to be 0x0./* 收到一个server给的offer,随后将flags变为0(意为broadcast off)*/
382 51625:Flags was changed to be 0x0./* 自己也把flags设为0, 发一个request给server.*/
383 51658:DHCP request timeout./* (问题出在这里)request超时,没有得到server的ACK.*/

384 51660:DHCP client tx discover(B)./* 重新开始discover. */
385 51664:DHCP client read, totlen = 368(1048)./* (totlen 猜测为total length, 数据包长度.).*/
386 51664:DHCP client tx request./* tx猜测为transaction(传输),(ifconfig -a也可以看到) */
387 51693:DHCP client read, totlen = 368(1048).
388 51703:DHCP client tx discover(B).
389 51703:DHCP client read, totlen = 368(1048).
390 51703:DHCP client tx request.
391 51704:DHCP request timeout.
392 51704:DHCP client read, totlen = 368(1048).
393 51706:DHCP 网络配置完成.
394 51779:DHCP client tx discover(B).
395 51779:DHCP client read, totlen = 368(1048).
396 51779:DHCP client tx request.
397 51779:DHCP client read, totlen = 368(1048).
398 51780:DHCP request timeout.
399 51781:DHCP 网络配置完成.
400 51806:DHCPS: 1:0x001f3c5b6ba5, 192.168.1.101, ACK in request./* 收到server给的地址 */

这就解释了为什么你路由器的wan口一直在工作,是因为第一秒钟都会有一个DHCP报文发出去或收到。
而且可以想像在这样的网络环境下(路由器一会有IP,一会没有IP),下载的速度了。

所以问题还是:

有可能你的路由器配置上有问题(有没有把以前的pppoe改成LAN?外网的IP跟自己局域网的IP是不是有冲突?etc)
ISP做了限制(对这个问题我也很好奇,不知道他们用什么来限制)。

当然,如果上面的DHCP client指的是局域网的client的话,情况又不一样了。

所以我的建议是一步一步的查,查到问题的来源,再在来源上找原因。

祝你好运!

PS: 如果知道了原因,请你分享一下,谢谢!


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帖子发表于 : 2008-07-02 18:47 
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DHCP request timeout 的原因大概是因为一开始网线是插在电脑上,然后插到了路由器上,MAC地址变了吧。如果用MAC地址克隆到路由器的话是很容易得到IP地址的。

我重置路由器以后日志如下:
索引 日 志 内 容
1 0000:系统启动成功.
2 0004:DHCP client tx discover(B).
3 0030:Flags was changed to be 0x0.
4 0030:DHCP client read, totlen = 368(1048).
5 0030:DHCP client tx request.
6 0035:DHCP client read, totlen = 368(1048).
7 0037:DHCP client tx discover(B).
8 0038:DHCP request timeout.
9 0040:DHCP client read, totlen = 368(1048).
10 0040:DHCP client tx request.
11 0040:DHCP client read, totlen = 368(1048).
12 0042:DHCP 网络配置完成.


Time = 2008-07-02 18:35:34 242s
H-Ver = FW54R v4 08118989 : S-Ver = 3.7.2 Build 071129

Rel.33121n
L = 192.168.1.1 : M = 255.255.255.0
W1 = DHCP : W = 220.232.84.205 : M = 255.255.254.0 : G =

220.232.85.254
Free=3085, Busy=13, Bind=11, Inv=0/0, Bc=0/0, Dns=0, cl=96,

fc=0/0, sq=0/0


重置以后我用LAN接到笔记本上面,上网速度竟然正常了,然后用LAN插到台式机,台式机网速很慢。如果网线直插台式机的话网速还是正常。

还有一个问题,我用的是cable modem,在上面的开关关掉断网以后,wan端口的指示灯还是在不停地闪。


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帖子发表于 : 2008-07-02 19:33 
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嗯。。。leafei先生谢谢啦。
我终于吧问题查出来了,跟你一开始说的一样,是物理层面上的问题。我新买的那根网线接触不良。直连台式机网卡的时候网线是平放,接触良好,连路由器的时候,是往上连接的,线一弯就断路了。但是断不是全断,可能是一跟小线不对,所以ip地址分得到但是上网上不了,偶尔碰到了接触好了,就能上一下,再碰再断,网速就看起来比较慢。

刚才接笔记本的时候把路由器的位置改变了一下,接触就良好了,所以上网速度正常了,然后接台式机又放到原来的地方了,又断了。所以我把路由器跟wan连接的那条线换了一根,就正常了。


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:D


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