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You are here: Home / SWITCH / Module 6 / LAN Security – Private VLANs

LAN Security – Private VLANs

Private VLANs (PVLANs) prevent inter-host communication by providing port-specific security between adjacent ports within a VLAN across one or more switches. Access ports within PVLANs are allowed to communicate only with the certain designated router ports, which are typically those connected to the default gateway for the VLAN. Both normal VLANs and PVLANs can co-exist on the same switch; however, unlike normal VLANs, PVLANs allow for the segregation of traffic at Layer 2. This effectively transforms a traditional Broadcast segment into a non-Broadcast multi-access segment.
Private VLAN Port Types
The PVLAN feature uses three different . . .

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