Contemporary-control-systems Compact Managed Switches Software Manual for Web B Instrukcja Użytkownika Pobierz pdf (Strona 29)

TD020851-0MG

4.4.4.12 Port VLAN Security Example

Suppose that 3 computers on ports 1, 2 and 3 must talk to a printer on port 4, but not

with each other — and none of these devices is VLAN-aware. One way to accomplish

this is to define 4 VLANs, assign each included port the option “MF” (enabling its Tag

Filter) and match the Default Tags to the VIDs as follows:

Group VID Member Ports Default Tags

1 1 1 & 4 Port 1 = 1

2 2 2 & 4 Port 2 = 2

3 3 3 & 4 Port 3 = 3

4 4 1, 2, 3 & 4 Port 4 = 4

Ports 1, 2 and 3 do not talk to each other because each port uses a different tag.

However, each port’s tag is shared with port 4. The printer on port 4 can still talk to

ports 1, 2 and 3 using its own tag (4).

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Contemporary-control-systems Compact Managed Switches Software Manual for Web B Instrukcja Użytkownika Strona 29