双网卡访问外网和学校内网

寝室用的网通，我用的路由器获取IP，虽然分配给路由器本地ip也能被认为是学校内网IP，但是很多校内的资源很多还是无法工作。譬如论文检索、光盘下载、校内的FTP。

当然，路由器的外网IP是联通分配的。

本机自带的网卡用来连接路由器访问internet，

USB网卡用来连接交换机（寝室用来连接学校网络的，路由器也连接在这个交换机上面）。

自动获取寝室内网ip：

为了保证USB网卡访问内网不影响本机网卡访问外网，设置路由跳点：

这样设置之后，就可以访问内网了

这个IP是学校内网的一个IP,实验室也是用的这个子网，这应该是学校教学楼的内网。

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Microsoft Windows XP [版本 5.1.2600]
(C) 版权所有 1985-2001 Microsoft Corp.


C:\Documents and Settings\Administrator>netstat


Active Connections


  Proto  Local Address          Foreign Address        State
  TCP    zhangbin-pcstar:1138   localhost:1139         ESTABLISHED
  TCP    zhangbin-pcstar:1139   localhost:1138         ESTABLISHED
  TCP    zhangbin-pcstar:1186   localhost:1187         ESTABLISHED
  TCP    zhangbin-pcstar:1187   localhost:1186         ESTABLISHED
  TCP    zhangbin-pcstar:1829   202.193.80.183:http    TIME_WAIT
  TCP    zhangbin-pcstar:1841   202.193.80.183:http    TIME_WAIT
  TCP    zhangbin-pcstar:1847   202.193.80.185:http    ESTABLISHED
  TCP    zhangbin-pcstar:1848   202.193.80.185:http    ESTABLISHED
  TCP    zhangbin-pcstar:1849   202.193.80.185:http    ESTABLISHED
  TCP    zhangbin-pcstar:1850   202.193.80.185:http    ESTABLISHED
  TCP    zhangbin-pcstar:1851   202.193.80.185:http    ESTABLISHED
  TCP    zhangbin-pcstar:1852   202.193.80.185:http    ESTABLISHED
  TCP    zhangbin-pcstar:1043   61.135.218.41:http     CLOSE_WAIT
  TCP    zhangbin-pcstar:1044   61.135.218.41:http     CLOSE_WAIT
  TCP    zhangbin-pcstar:1045   61.135.218.44:http     CLOSE_WAIT
  TCP    zhangbin-pcstar:1046   61.135.218.41:http     CLOSE_WAIT
  TCP    zhangbin-pcstar:1144   a23-15-99-51.deploy.akamaitechnologies.com:https
  CLOSE_WAIT
  TCP    zhangbin-pcstar:1628   183.60.49.180:https    ESTABLISHED
  TCP    zhangbin-pcstar:pptp   61.135.217.78:http     CLOSE_WAIT
  TCP    zhangbin-pcstar:1826   61.135.218.44:http     LAST_ACK
  TCP    zhangbin-pcstar:1837   sin01s04-in-f1.1e100.net:https  ESTABLISHED
  TCP    zhangbin-pcstar:1846   61.135.218.44:http     CLOSE_WAIT
  TCP    zhangbin-pcstar:1854   117.79.157.241:http    ESTABLISHED
  TCP    zhangbin-pcstar:1855   117.79.157.241:http    ESTABLISHED
  TCP    zhangbin-pcstar:1856   117.79.157.241:http    ESTABLISHED
  TCP    zhangbin-pcstar:1857   117.79.157.214:http    ESTABLISHED
  TCP    zhangbin-pcstar:1858   117.79.157.214:http    ESTABLISHED
  TCP    zhangbin-pcstar:1859   117.79.157.202:http    ESTABLISHED
  TCP    zhangbin-pcstar:1860   117.79.157.202:http    ESTABLISHED
  TCP    zhangbin-pcstar:1861   117.79.157.202:http    ESTABLISHED
  TCP    zhangbin-pcstar:1862   117.79.157.241:http    ESTABLISHED
  TCP    zhangbin-pcstar:1863   117.79.157.241:http    ESTABLISHED
  TCP    zhangbin-pcstar:1864   117.79.157.241:http    ESTABLISHED
  TCP    zhangbin-pcstar:1865   117.79.157.241:http    ESTABLISHED
  TCP    zhangbin-pcstar:1866   117.79.157.241:http    ESTABLISHED
  TCP    zhangbin-pcstar:1867   117.79.157.241:http    ESTABLISHED
  TCP    zhangbin-pcstar:1868   117.79.157.214:http    ESTABLISHED
  TCP    zhangbin-pcstar:1869   117.79.157.214:http    ESTABLISHED
  TCP    zhangbin-pcstar:1870   117.79.157.214:http    ESTABLISHED
  TCP    zhangbin-pcstar:1871   117.79.157.214:http    ESTABLISHED
  TCP    zhangbin-pcstar:1872   117.79.157.214:http    ESTABLISHED
  TCP    zhangbin-pcstar:1873   117.79.157.214:http    ESTABLISHED
  TCP    zhangbin-pcstar:1874   117.79.157.214:http    ESTABLISHED
  TCP    zhangbin-pcstar:1875   117.79.157.214:http    ESTABLISHED
  TCP    zhangbin-pcstar:1876   117.79.157.214:http    ESTABLISHED
  TCP    zhangbin-pcstar:1877   117.79.157.214:http    ESTABLISHED
  TCP    zhangbin-pcstar:1878   117.79.157.224:http    ESTABLISHED
  TCP    zhangbin-pcstar:1879   117.79.157.224:http    ESTABLISHED
  TCP    zhangbin-pcstar:1880   117.79.157.224:http    ESTABLISHED
  TCP    zhangbin-pcstar:1881   117.79.157.231:http    ESTABLISHED
  TCP    zhangbin-pcstar:1882   117.79.157.231:http    ESTABLISHED
  TCP    zhangbin-pcstar:1883   117.79.157.231:http    ESTABLISHED
  TCP    zhangbin-pcstar:1884   hx-in-f139.1e100.net:http  ESTABLISHED
  TCP    zhangbin-pcstar:1885   hx-in-f139.1e100.net:http  ESTABLISHED
  TCP    zhangbin-pcstar:1886   hx-in-f139.1e100.net:http  ESTABLISHED
  TCP    zhangbin-pcstar:1887   117.79.157.214:http    ESTABLISHED    这是http://www.csdn.net/ 。
  TCP    zhangbin-pcstar:1888   117.79.157.214:http    ESTABLISHED
  TCP    zhangbin-pcstar:2869   192.168.1.2:31240      CLOSE_WAIT    路由器端口号


C:\Documents and Settings\Administrator>ipconfig


Windows IP Configuration




Ethernet adapter 本地连接:


        Connection-specific DNS Suffix  . :
        IP Address. . . . . . . . . . . . : 192.168.1.88
        Subnet Mask . . . . . . . . . . . : 255.255.255.0
        Default Gateway . . . . . . . . . : 192.168.1.2


Ethernet adapter VirtualBox Host-Only Network:


        Connection-specific DNS Suffix  . :
        IP Address. . . . . . . . . . . . : 192.168.56.1
        Subnet Mask . . . . . . . . . . . : 255.255.255.0
        Default Gateway . . . . . . . . . :


Ethernet adapter ASIX:    USB网卡的


        Connection-specific DNS Suffix  . :
        IP Address. . . . . . . . . . . . : 172.27.0.4
        Subnet Mask . . . . . . . . . . . : 255.255.252.0
        Default Gateway . . . . . . . . . : 172.27.3.254  学校的内网网关


C:\Documents and Settings\Administrator>route


Manipulates network routing tables.


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 database
file NETWORKS. The symbolic names for gateway are looked up in the host name
database 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 only
matching 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


C:\Documents and Settings\Administrator>ifconfig
'ifconfig' 不是内部或外部命令，也不是可运行的程序
或批处理文件。


C:\Documents and Settings\Administrator>

C:\Documents and Settings\Administrator>route print
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...6c f0 49 05 94 e3 ...... Realtek PCIe GBE Family Controller - 数据包计划
程序微型端口
0x3 ...08 00 27 00 44 26 ...... VirtualBox Host-Only Ethernet Adapter - 数据包计
划程序微型端口
0x20005 ...00 8a 8d 8a 1c 1c ...... ASIX AX88772A USB2.0 to Fast Ethernet Adapte
r - 数据包计划程序微型端口
===========================================================================
===========================================================================
Active Routes:
Network Destination        Netmask          Gateway       Interface  Metric
          0.0.0.0          0.0.0.0     172.27.3.254      172.27.0.4       30
          0.0.0.0          0.0.0.0      192.168.1.2    192.168.1.88       10
        127.0.0.0        255.0.0.0        127.0.0.1       127.0.0.1       1
       172.16.0.0      255.240.0.0     172.27.3.254      172.27.0.4       1
       172.27.0.0    255.255.252.0       172.27.0.4      172.27.0.4       30
       172.27.0.4  255.255.255.255        127.0.0.1       127.0.0.1       30
   172.27.255.255  255.255.255.255       172.27.0.4      172.27.0.4       30
      192.168.1.0    255.255.255.0     192.168.1.88    192.168.1.88       10
     192.168.1.88  255.255.255.255        127.0.0.1       127.0.0.1       10
    192.168.1.255  255.255.255.255     192.168.1.88    192.168.1.88       10
     192.168.56.0    255.255.255.0     192.168.56.1    192.168.56.1       20
     192.168.56.1  255.255.255.255        127.0.0.1       127.0.0.1       20
   192.168.56.255  255.255.255.255     192.168.56.1    192.168.56.1       20
     202.193.80.0    255.255.240.0     172.27.3.254      172.27.0.4       1
     222.203.32.0    255.255.240.0     172.27.3.254      172.27.0.4       1
        224.0.0.0        240.0.0.0       172.27.0.4      172.27.0.4       30
        224.0.0.0        240.0.0.0     192.168.1.88    192.168.1.88       10
        224.0.0.0        240.0.0.0     192.168.56.1    192.168.56.1       20
  255.255.255.255  255.255.255.255       172.27.0.4      172.27.0.4       1
  255.255.255.255  255.255.255.255     192.168.1.88    192.168.1.88       1
  255.255.255.255  255.255.255.255     192.168.56.1    192.168.56.1       1
Default Gateway:       192.168.1.2
===========================================================================
Persistent Routes:
  None


C:\Documents and Settings\Administrator>