The first step is to define perfectly which PC's must have internet access and which don't. I guess it could be easier to configure using your proxy's properties, but if u want to achieve this with ur switch, i recommend you to define vlans if your switch support it. One vlan for adminitration, one vlan including all pc's with internet access, and obviously the proxy server machine, and the other with all the rest.
Note: if you do not have any layer 3 equipment, you wont be able to stablish communication between vlans. Anyway, i will search for another solution.
Access list can be managed in my switch to solve this problem, I was planning to create a PERMIT access list an assigned it to the port wher proxy hub is connected, so it will come tons of traffic from rest of ports, but only will pass the ones I've enlisted in that PERMIT list.
It is called multi vlan (no, it is not the samething as trunking). You MUST assign pcs that can go to the internet and the intranet to one hub. And the other pc that can only go to the intranet on a different hub. Then assign vlan 2 to the proxy server and vlan 2 and 3 to the port with the hub that can go to the internet and intranet. Then assign vlan 3 only to the ports with the hubs that can go to the intranet.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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