电脑同时使用双网卡实现方法

PC机很少会装双网卡，但笔记本电脑就不同。在公司因工作原因，经常需要在公司内容和无线外网之间切来切去，怎一个麻烦了得。琢磨琢磨既然双网卡各有一个网关，那么只要指定被访问的某个ip走特定的网关路由不就实现需求了嘛。于是乎找啊找，竟然有dos的route命令可以实现。

ROUTE [-f] [-p] [command [destination] [MASK netmask] [gateway] [METRIC metric] [IF interface] -f Clears the routing tables of all gateway entries. If this is used in conjunction with one of the commands, the tables are cleared prior to running the command. -p When used with the ADD command, makes a route persistent across boots of the system. By default, routes are not preserved when the system is restarted. Ignored for all other commands, which always affect the appropriate persistent routes. This option is not supported in Windows 95. command One of these: PRINT Prints a route ADD Adds a route DELETE Deletes a route CHANGE Modifies an existing route destination Specifies the host. MASK Specifies that the next parameter is the 'netmask' value. netmask Specifies a subnet mask value for this route entry. If not specified, it defaults to 255.255.255.255. gateway Specifies gateway. interface the interface number for the specified route. METRIC specifies the metric, ie. cost for the destination.All symbolic names used for destination are looked up in the network databasefile NETWORKS. The symbolic names for gateway are looked up in the host namedatabase file HOSTS.If the command is PRINT or DELETE. Destination or gateway can be a wildcard,(wildcard is specified as a star '*'), or the gateway argument may be omitted.If Dest contains a * or ?, it is treated as a shell pattern, and onlymatching destination routes are printed. The '*' matches any string,and '?' matches any one char. Examples: 157.*.1, 157.*, 127.*, *224*.Diagnostic Notes: Invalid MASK generates an error, that is when (DEST & MASK) != DEST. Example> route ADD 157.0.0.0 MASK 155.0.0.0 157.55.80.1 IF 1 The route addition failed: The specified mask parameter is invalid (Destination & Mask) != Destination.Examples: > route PRINT > route ADD 157.0.0.0 MASK 255.0.0.0 157.55.80.1 METRIC 3 IF 2 destination^ ^mask ^gateway metric^ ^ Interface^ If IF is not given, it tries to find the best interface for a given gateway. > route PRINT > route PRINT 157* .... Only prints those matching 157* > route CHANGE 157.0.0.0 MASK 255.0.0.0 157.55.80.5 METRIC 2 IF 2 CHANGE is used to modify gateway and/or metric only. > route PRINT > route DELETE 157.0.0.0 > route PRINT

好吧，抛弃掉一切附加参数，只使用核心参数。

route add 211.*.*.* 120.196.155.254 //设置ip路由下一个跳跃点是cmcc的网关route add 12.130.132.30 120.196.155.254 //设置sina的ip下一个跳跃点是cmcc网关。route add 221.179.9.18 120.196.155.254 //设置cmcc wlan 认证网址

首先去掉ie内网代理，直接访问sina，让cmcc wlan弹出认证页面，认证。