Questions about controlling IP Internet access?

cebonalg

Our unit's local area network has more than 70 machines, fiber broadband, a Cisco router and several Cisco switches, no other servers, the internal network IP is bound to the physical network card address of each client, and the administrator has set The IP address can access the Internet from 192.168.1.120 to 192.168.1.200, and other IPs cannot access the Internet. If a new machine is added, this range can be expanded. I want to know how this is done? Please give as much detailed operation steps as possible, thank you!

wuhexian

Restricted port

read001

Configure ACL globally on the switch, similar to the following configuration:
rule deny all //First prohibit all packet forwarding, and then open the allowed IPs in turn
rule permit source 192.168.1.120
rule permit destination 192.168.1.120
Configure the IP address 192.168.1.120 as above, and other IPs are similar.

michaelmeme

Use a proxy server to surf the Internet
Use virtual private network (vpn)

神气建造师

It is not enough to install DHCP. Which IP addresses you want to go online can be used to go online. This is very easy to set up. Just go and read the book on how to configure DHCP! ! ! ! ! ! ! ! ! ! ! ! ! !

ainijun909

Yes, as the 2nd floor said, go to the router and disable it, is it OK?

henfing123

ip filtering, very simple

11011023

You can cancel the binding between the IP address and the client, and then create a DHCP service yourself, and set each computer to automatically obtain an IP. In this way, the company can let the IP address of the unused machine be released to others The machine uses .plex and saves IP.