【求助】免費無線上線

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2005-07-18, 04:52 PM
aalin2

【求助】免費無線上線

如果距離家裡桌上型電腦.
約500-1000公尺
有市政府搭設的無線網路圈..
要如何在家免費上線...
2005-07-18, 07:51 PM
wangcm

[QUOTE=aalin2]如果距離家裡桌上型電腦.
約500-1000公尺
有市政府搭設的無線網路圈..
要如何在家免費上線...[/QUOTE]

是50-100m或500-1000m :confused: :confused: ....如果是50-100m,DT裝個能外接天線的PCI無線網卡就得了(說不定用網卡附的天線就行了,連天線都不用換 :D ),要是500-1000m,除了要考慮會不會被擋到,光天線所須的$$(除非您會DIY)可能都能讓您自己拉條XDSL用上幾個月了 :D :D ....
2005-07-19, 05:19 PM
mars0510

要有無線網卡...

題外話...
市政府的無線網路...
現階段是免費的吧..
以後不是會開始收費嗎???
2005-07-19, 05:34 PM
jackal_sam

嗚嗚…阿，大都會、都市…真好…鄰近學校區，都有免費的網路可以用，先前在學校附近，都還可以收到512kb/s以上，這樣子一年真的可以省下微數可觀的網路費，現在在家附近沒有Hot Point，好可惜∼∼為了省錢就改了亞太的Cable還去借了學生証∼∼就是為了NT：399/Month，好可惜！阿∼∼無緣「大葉大學」還是離我太遠了∼∼∼可惜∼∼∼可惜∼∼∼∼
2005-07-19, 07:36 PM
aalin2

[QUOTE=wangcm]是50-100m或500-1000m :confused: :confused: ....如果是50-100m,DT裝個能外接天線的PCI無線網卡就得了(說不定用網卡附的天線就行了,連天線都不用換 :D ),要是500-1000m,除了要考慮會不會被擋到,光天線所須的$$(除非您會DIY)可能都能讓您自己拉條XDSL用上幾個月了 :D :D ....[/QUOTE]

是喔..那就放棄了
因為大約是500-600m..
不過的確有其他大樓擋在之間
要來去換so net
2005-07-19, 08:47 PM
aalin2

[QUOTE=jackal_sam]嗚嗚…阿，大都會、都市…真好…鄰近學校區，都有免費的網路可以用，先前在學校附近，都還可以收到512kb/s以上，這樣子一年真的可以省下微數可觀的網路費，現在在家附近沒有Hot Point，好可惜∼∼為了省錢就改了亞太的Cable還去借了學生証∼∼就是為了NT：399/Month，好可惜！阿∼∼無緣「大葉大學」還是離我太遠了∼∼∼可惜∼∼∼可惜∼∼∼∼[/QUOTE]

請問你所謂的學校附近是多遠阿......
一般無線網卡就收的到嗎
2005-07-19, 09:15 PM
jackal_sam

[QUOTE=aalin2]請問你所謂的學校附近是多遠阿......
一般無線網卡就收的到嗎[/QUOTE]

「一般」？當然收不到！我是用指向性的天線15dB大天線+AP client Mode，天線是貴了點，但長久下來真的省了不少錢，但就是會有防火牆等一堆的問題，就是一般可以免費上網已是超值，先前我在目視1~2Km以上都沒問題，因為學校瑞也是用大dB數的全向天線，我這一瑞給它對準，連線速度應付寬頻上網是措措有餘！
2005-07-19, 09:18 PM
aalin2

指向性的天線15dB大天線+AP client Mode
要多少co co 阿
2005-07-19, 10:02 PM
jackal_sam

[QUOTE=aalin2]指向性的天線15dB大天線+AP client Mode
要多少co co 阿[/QUOTE]

一般來說，這樣子架到好，我以前買是滿貴的，現在五、六千因該是要，當然還要看你買的是那些東東，如果買一般人家已作好的戶外用的AP當然更貴！但這不是重點，重點是你所在的地點四周是不是有「沒加碼」的Hot Point點，如果有加碼，那收的到也是無三小路用。如果有的可！這種投資，個人我是覺得非常值得的，但像我現在，別說有沒有加碼了，我們這種鄉下地方，Hot Point點可以說是「零」。
2005-07-19, 10:26 PM
wangcm

[QUOTE=jackal_sam]一般來說，這樣子架到好，我以前買是滿貴的，現在五、六千因該是要，當然還要看你買的是那些東東，如果買一般人家已作好的戶外用的AP當然更貴！但這不是重點，重點是你所在的地點四周是不是有「沒加碼」的Hot Point點，如果有加碼，那收的到也是無三小路用。如果有的可！這種投資，個人我是覺得非常值得的，但像我現在，別說有沒有加碼了，我們這種鄉下地方，Hot Point點可以說是「零」。[/QUOTE]

不過有句話說"免錢的最貴",除非您只是上上網而不會做有安全顧慮的事,這種便車還是別亂搭的好----因為您根本無從得知另一端AP後面有些什麼,或許是別人拿來釣魚的餌 :D :D ....BTW,鵝貼一下鵝家這邊在室內用3dbi rod antenna能suvey到啥給大家欣賞欣賞好了,不過為了安全起見,ESSID及鵝自用的部份鵝先拿掉了.....

wlan0 Scan completed :
Cell 01 - Address: 00:02:6F:20:E4:C6
ESSID:""
Mode:Master
Frequency:2.462GHz
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s
Quality:1/100 Signal level:-121 dBm Noise level:-256 dBm
Encryption key:off
Cell 02 - Address: 00:11:2F:C4:2A:DA
ESSID:""
Mode:Master
Frequency:2.462GHz
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s
Bit Rate:18Mb/s
Bit Rate:24Mb/s
Bit Rate:36Mb/s
Bit Rate:54Mb/s
Quality:6/100 Signal level:-121 dBm Noise level:-256 dBm
Encryption key:off
Cell 03 - Address: 00:12:A9:06:42:1C
ESSID:""
Mode:Master
Frequency:2.437GHz
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s
Bit Rate:6Mb/s
Bit Rate:12Mb/s
Bit Rate:24Mb/s
Bit Rate:36Mb/s
Quality:1/100 Signal level:-115 dBm Noise level:-256 dBm
Encryption key:off
Cell 04 - Address: 00:12:A9:03:5E:AB
ESSID:""
Mode:Master
Frequency:2.437GHz
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s
Bit Rate:6Mb/s
Bit Rate:12Mb/s
Bit Rate:24Mb/s
Bit Rate:36Mb/s
Quality:1/100 Signal level:-125 dBm Noise level:-256 dBm
Encryption key:off
Cell 05 - Address: 00:12:A9:03:5E:B1
ESSID:""
Mode:Master
Frequency:2.437GHz
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s
Bit Rate:6Mb/s
Bit Rate:12Mb/s
Bit Rate:24Mb/s
Bit Rate:36Mb/s
Quality:33/100 Signal level:-111 dBm Noise level:-256 dBm
Encryption key:off
Cell 06 - Address: 00:12:A9:06:41:97
ESSID:""
Mode:Master
Frequency:2.437GHz
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s
Bit Rate:6Mb/s
Bit Rate:12Mb/s
Bit Rate:24Mb/s
Bit Rate:36Mb/s
Quality:92/100 Signal level:-101 dBm Noise level:-256 dBm
Encryption key:off
Cell 07 - Address: 00:02:72:00:7C:67
ESSID:""
Mode:Master
Frequency:2.412GHz
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s
Quality:34/100 Signal level:-101 dBm Noise level:-256 dBm
Encryption key:off
Cell 08 - Address: 00:50:FC:D5:B9:64
ESSID:""
Mode:Master
Frequency:2.437GHz
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s
Quality:26/100 Signal level:-121 dBm Noise level:-256 dBm
Encryption key:on
Cell 09 - Address: 00:30:F1:93:4F:F0
ESSID:""
Mode:Master
Frequency:2.484GHz
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s
Quality:92/100 Signal level:-71 dBm Noise level:-256 dBm
Encryption key:on
2005-07-19, 11:05 PM
aalin2

嗯..這些數據對我來說
太advanced...了
看沒有耶
誰可說明一下
2005-07-19, 11:28 PM
ivantw

天啊！wangcm兄，你是住哪？週遭有九個AP可存取？而且大部分都沒加密，收訊也很優啊！ :eek:
2005-07-19, 11:37 PM
jackal_sam

wangcm兄：太幸福了吧~~~~看來還是自已乖乖的花錢裝寬頻的份了！
2005-07-20, 07:24 AM
wangcm

[QUOTE=jackal_sam]wangcm兄：太幸福了吧~~~~看來還是自已乖乖的花錢裝寬頻的份了！[/QUOTE]

這一點都不好,鵝要連自己的AP還得另闢蹊徑才不會連錯 :D :D ....BTW,如果只是為了省錢的話不如找人拉條最便宜的XDSL share就好了,像鵝現在就是跟鄰居share 256/64的XDSL,每月只要NT$150 :D :D ....

[QUOTE=ivantw]天啊！wangcm兄，你是住哪？週遭有九個AP可存取？而且大部分都沒加密，收訊也很優啊！ :eek:[/QUOTE]

前面提的9個AP堶惘4個是某單位跑WDS的,應該算一個,不過該單位似乎對access control不是很在乎(沒設MAC filter或加密,更別說802.1x等等了 :D ),還好鵝不算別有居心者,不然有人就要倒霉了 :D .....BTW,剛把天線移到窗外,又多找到一些AP,有些連default的ESSID都沒改(尤其是向CHT租XDSL+AP者10個有9個如此 :D )....BTW,只要traffic夠多要解WEP也沒一般人想像中的難就是了 :D :D .....

wlan0 Scan completed :
Cell 01 - Address: 00:30:BD:63:A8:17
ESSID:"WLAN"
Mode:Master
Frequency:2.462GHz
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s
Quality:31/100 Signal level:-111 dBm Noise level:-256 dBm
Encryption key:off
Cell 02 - Address: 00:90:96:28:33:24
ESSID:"default"
Mode:Master
Frequency:2.437GHz
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s
Quality:41/100 Signal level:-118 dBm Noise level:-256 dBm
Encryption key:off
Cell 03 - Address: 00:90:CC:84:63:88
ESSID:""
Mode:Master
Frequency:2.437GHz
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s
Quality:1/100 Signal level:-115 dBm Noise level:-256 dBm
Encryption key:on
Cell 04 - Address: 00:0A:79:65:B7:B6
ESSID:"corega"
Mode:Master
Frequency:2.437GHz
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s
Quality:50/100 Signal level:-125 dBm Noise level:-256 dBm
Encryption key:off
2005-09-08, 12:49 AM
pcwalker

請問一下前輩您是用哪一種軟體測出下面數據?只要traffic夠多要解WEP也沒一般人想像中的難--請問如何作?tks

[QUOTE=wangcm]這一點都不好,鵝要連自己的AP還得另闢蹊徑才不會連錯 :D :D ....BTW,如果只是為了省錢的話不如找人拉條最便宜的XDSL share就好了,像鵝現在就是跟鄰居share 256/64的XDSL,每月只要NT$150 :D :D ....

前面提的9個AP堶惘4個是某單位跑WDS的,應該算一個,不過該單位似乎對access control不是很在乎(沒設MAC filter或加密,更別說802.1x等等了 :D ),還好鵝不算別有居心者,不然有人就要倒霉了 :D .....BTW,剛把天線移到窗外,又多找到一些AP,有些連default的ESSID都沒改(尤其是向CHT租XDSL+AP者10個有9個如此 :D )....BTW,只要traffic夠多要解WEP也沒一般人想像中的難就是了 :D :D .....

wlan0 Scan completed :
Cell 01 - Address: 00:30:BD:63:A8:17
ESSID:"WLAN"
Mode:Master
Frequency:2.462GHz
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s
Quality:31/100 Signal level:-111 dBm Noise level:-256 dBm
Encryption key:off
Cell 02 - Address: 00:90:96:28:33:24
ESSID:"default"
Mode:Master
Frequency:2.437GHz
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s
Quality:41/100 Signal level:-118 dBm Noise level:-256 dBm
Encryption key:off
Cell 03 - Address: 00:90:CC:84:63:88
ESSID:""
Mode:Master
Frequency:2.437GHz
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s
Quality:1/100 Signal level:-115 dBm Noise level:-256 dBm
Encryption key:on
Cell 04 - Address: 00:0A:79:65:B7:B6
ESSID:"corega"
Mode:Master
Frequency:2.437GHz
Bit Rate:1Mb/s
Bit Rate:2Mb/s
Bit Rate:5.5Mb/s
Bit Rate:11Mb/s
Quality:50/100 Signal level:-125 dBm Noise level:-256 dBm
Encryption key:off[/QUOTE]
2005-09-08, 08:31 PM
wangcm

[QUOTE=pcwalker]請問一下前輩您是用哪一種軟體測出下面數據?只要traffic夠多要解WEP也沒一般人想像中的難--請問如何作?tks[/QUOTE]

鵝只是在Linux裝好Wireless NIC後下iwlist就能看到那堆東東了 :D :D ....至於要解WEP除了要有AP(ex Aircrack等),Wireless NIC(含HW/driver)還得support RF monitor才行,在Linux下符合這個前提的網卡還不算難找(用ndiswrapper掛Win32 driver不能用 :D ),在M$ Win下就麻煩了,一般driver通常不會support RF monitor(要特殊版本的driver才有),就算Aircrack有Win32的binary可用也沒輒 :D ....BTW,鵝指的traffic夠多是只要能抓到數百萬個packet(不算太多,經驗值一般中型office或跑P2P的user一下午就能貢獻這麼多packet :D ),以PIII700用統計法在6秒鐘之內就能反推出WEP的key----比6分鐘護一生還誇張 :D :D ....
2005-09-09, 07:11 PM
coolpen

[QUOTE=aalin2]指向性的天線15dB大天線+AP client Mode
要多少co co 阿[/QUOTE]

我自已本身也有收外部訊號，我是用無線區域網路偵測器，偵側到訊號在買外接天線直接收外部訊號，真的好用說，這埵釵b買http://shopping.pchome.com.tw/multimedia/detail.php?pid=MMX00106無線區域網路偵測器，參考看看，http://www.wifi-link.com/tw/天線這堣]很便宜．如果自已ｄｉｙ天線會更省錢喔.[url]http://www.pczone.com.tw/showthread.php?t=58305:D[/url] :D
2005-09-10, 09:35 PM
pcwalker

您好:小弟今天測訊號碰到一個問題!有一個訊源超過距離就變成加密,距離內不需認證即可連上!另外,天線是不是dBI值越大越好?!tks
2005-09-10, 10:01 PM
wangcm

[QUOTE=pcwalker]您好:小弟今天測訊號碰到一個問題!有一個訊源超過距離就變成加密,距離內不需認證即可連上!另外,天線是不是dBI值越大越好?!tks[/QUOTE]

這倒有趣了,您是在問有沒有這種東東還是已經有這種東東,照說同一個AP出來的信號只有一個不可能因距離不同就自動加密(AP可以設成加密同時允許未加密的client連上來,但這跟距離無關---單一AP要確認client的位置/距離並非易事),會不會是您連的AP根本不是您想連的那棵 :D :D ....BTW,增益太高的天線通常可用頻寬會比較小(對展頻通訊不見得適用),波束也會比較窄(須要精確的對準,對會移動的場合也不見得適用),並不是dBI值越大越好的 :D :D ....
2005-09-11, 08:25 PM
dahone_Hsueh

我在公司裡用的就是免費的外部訊號，
雖然訊號品質不是太好，只有兩格，
有時也會斷訊，但至少沒有像公司有那強大的防火牆，
連skype也都無法用........... :D
2005-09-11, 09:01 PM
arthurh

我這裡(仁愛路圓環附近)收的到 wifly 的信號
現在就是以它上網
skype 可以使用
但是通話品質不是很好 :(
msn messenger 常常會被踢出 :|||:
[img]http://www.storage4all.com/uploads/e92b074b1c.gif[/img]

【求助】免費 無線上線

【求助】免費無線上線