[数码生活] 2个路由器一条无线桥扫遍大房子无线上网所有死角！

User requirements:

(1) Cover the whole house with wireless signal.

(2) Provide wired connections in 2 separate areas (up to 100 ft apart).

Equipment:

(1) Router 1 (used to connect to the modem) can be any router (wireless)

(2) Router 2 has to be DD-WRT compatible (Buffalo routers, e.g.)

Setup

The 2nd router can be set up as a wireless repeater, or wireless bridge.

As a repeater, the key points are:

- WAN IP: DHCP from router 1 (router 1 IP 192.168.1.1) - no need to specify

- LAN IP: On different subnet from router 1 (192.168.2.1)

- Enable DHCP for router 2 clients

- Physical interface: SSID = 1st router SSID

- Virtual interface: SSID = different SSID

- Set up wireless security on router 2

Detailed instructions: http://www.dd-wrt.com/wiki/index.php/Wlan_Repeater

(the figure below is for a repeater bridge)

As a bridge, the key points are:

- WAN IP: 192.168.1.2 (static on router 1 subnet)

- LAN IP: router DHCP pass on

- Disable DHCP on router 2 (router 1 will do the work)

- SSID = 1st router SSID

- No wireless clients for router 2

所有跟帖： 

• 坏处是wifi速度减半 -mc3361- ♂ (0 bytes) () 08/14/2012 postreply 10:05:12

• 没关系。Wireless G 54mbps, ISP 大多小于 25mbps -湘西山民- ♂ (128 bytes) () 08/14/2012 postreply 10:18:28

• 54 mbps 的router 实际速度在17到22mbps，再减半就是8.5到11mbps -mc3361- ♂ (0 bytes) () 08/14/2012 postreply 10:55:06

• 简单试验了一下： -湘西山民- ♂ (295 bytes) () 08/14/2012 postreply 12:03:31

• 现在十几兆的cable挺普遍的 -mc3361- ♂ (0 bytes) () 08/14/2012 postreply 12:05:28

• 那是因为Cable有所谓的Power boost. 忙的时候带宽就打折扣了。 -湘西山民- ♂ (95 bytes) () 08/14/2012 postreply 12:17:20

• 用cable连接两个router,速度应该不减吧？ -Hope_2007- ♂ (0 bytes) () 08/14/2012 postreply 11:15:52

• 有线连接速度不减(100mbps). 但几台电脑同时用也是分享带宽。 -湘西山民- ♂ (26 bytes) () 08/14/2012 postreply 11:44:24

• 有线用(1000mbps)双向 -WayCool- ♂ (0 bytes) () 08/14/2012 postreply 13:08:01

• 一般的家用 router 好像只支持 100BaseT. -湘西山民- ♂ (0 bytes) () 08/14/2012 postreply 13:21:13

• 出厂就带Repeater/Bridge功能的便宜路由器： -湘西山民- ♂ (7025 bytes) () 08/14/2012 postreply 13:32:58

• 那么大房子不弄个大功率的试试？ -slow_quick- ♂ (0 bytes) () 08/14/2012 postreply 13:35:58

• 另外功率太大有没有健康方面的害处？ -湘西山民- ♂ (51 bytes) () 08/14/2012 postreply 13:46:50

• 大功率的距离不近没事 -slow_quick- ♂ (163 bytes) () 08/14/2012 postreply 14:19:54

• 能解释一下DD-WRT compatible 是什么意思吗? Thanks. -alexj- ♂ (0 bytes) () 08/15/2012 postreply 06:08:21

• 就是能把Firmware刷成DD-WRT的Router。 -π- ♂ (26 bytes) () 08/15/2012 postreply 06:13:59

• 以前要自己刷机。现在可以买到现成的 DD-WRT router。 -湘西山民- ♂ (6952 bytes) () 08/15/2012 postreply 06:49:12

• Powerline号称可达500Mbps, $90一对 -slow_quick- ♂ (148 bytes) () 08/15/2012 postreply 08:06:21

• 这个简单实用。 -湘西山民- ♂ (0 bytes) () 08/15/2012 postreply 10:18:57

• 注意是“号称”，不知实际如何 -slow_quick- ♂ (0 bytes) () 08/15/2012 postreply 11:12:37

• 从06年一直在用2个无线路由桥接，赫赫 -69222- ♂ (0 bytes) () 08/15/2012 postreply 10:21:57

• 好象那时 ddwrt 有这个功能不久。 -湘西山民- ♂ (0 bytes) () 08/15/2012 postreply 19:17:39

• 回复：好象那时 ddwrt 有这个功能不久。 -69222- ♂ (258 bytes) () 08/16/2012 postreply 14:43:56