In the first few days, some netizens asked cisco2811 how to use the ACL to block QQ. At that time, they wanted to help him, but there was no cisco router in his hand,
Only the GNS3 cisco simulator is available. Now the problem is to use the router of the gns3 simulator to act as a real working router, so that other virtual machines can access the Internet
Through this virtual router
After several experiments at www.2cto.com, the following methods are feasible. Although it is a little troublesome, there may be simpler methods. A vm is connected to the Internet.
The soft route of the sea spider, two NICs, one bridging network card, used for ADSL dial-up Internet access. One Nic uses vmnet8 and is connected to the LAN. Lab Topology
The XP Virtual Machine Used for the test on www.2cto.com, with the network adapter vmnet1. The IP address is allocated as shown in the figure.
Www.2cto.com note that the LAN address of the sea spider route must be 16 as the mask. 192.168.1.1 route 255.0.0 configure the default route pointing to 192.168.1.1 ip route 0.0.0.0 0.0.0.0 fa2/0 192.168.1.1 on vror4. Now, the XP Virtual Machine can access the Internet normally and access qq, it also passes through the virtual router in gns3.
Www.2cto.com can write some ACL restrictions on the Intranet qq on the vro, but it is not successful. There are too many qq servers and it is not possible to block them,
Besides, it is futile for people on the Intranet to use the ie proxy for qq.