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The school is using a D-Link DI-604 fast ethernet router for internet sharing and connected to port e1 on Linksys SRW224G4 + 4port Gigabit Switch with Webview and also have 4 D-Link DES-1024D switch and connected to port e5,e6,e7,e8 on SRW224G4 switch. I created 4 VLANs, vlan10 on e5, vlan20 on e6, vlan30 on e7 and vlan40 on e8. The computers are connected to the DES-1024D switch and have a sharing of files. That?s why all PCs can communicate to the other PCs and also to the other 3 DES-1024D switch. The DES-1024D switch 1 are installed on Computer Lab. Switch 2 are installed on Accounting Office. Switch 3 on Admin Office and Switch 4 on Faculty Room. The connection of PCs on Computer Lab can access the shared files in the other PCs in the offices (Accounting, Admin and Faculty Room) that are strictly prohibited. I want to secure the PCs in the Accounting, Admin and Faculty to not to access those shared files. In short all I want is the PCs connected to vlan10 cannot access the PCs in vlan20, vlan30 and vlan40 connected computers. So how do I configure my SRW224G4 for that?

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  •  Robert
    Robert May 11, 2010

    That is very strange. If they are on different VLANs, then that should not be possible. Are you sure those VLANs are assigned to the respective switch ports? Those different VLANs are on different subnets right? The only other thing I can think of is maybe inter-VLAN routing is somehow configured at the router. To test that, do a traceroute from one host in one VLAN to another host in another VLAN. If that's what is occuring, you will probably have to configure some ACLs (Access Contol Lists) on the SRW224G4. If all else fails, replace the DI-604 with a Cisco router. One of those can handle VLAN traffic better.

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