Windows 7 connected to the internal and external network conflict resolution method

  
Windows 7 dual network card when connected to the internal and external network, there will be two default gateway conflicts, resulting in two networks can not access.
So the solution is to configure only one gateway, and another network with a static route.
The first step is to configure the external network card as normal. Then configure the internal network NIC, and pay attention to the default gateway of the internal network.
The second step, route print, confirm 0.0.0.0 from the external network gateway.
If the current default is not an external gateway, start cmd as an administrator, first route delete 0.0.0.0, then route add 0.0.0.0 mask 0.0.0.0 zzz.zzz.zzz.zzz (outside gateway).
The third step, route add -p 192.168.100.0 mask 255.255.255.0 192.168.100.1 if 14, where 14, is the internal network interface number, you can see from the route print. -p means to add a static route, that is, it will not be lost after reboot.

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