This VLAN VPN function is implemented on the VPN Config, VLAN Mapping and Port Enable pages.

6.7.1 VPN Config

This page allows you to enable the VPN function, adjust the global TPID for VLAN-VPN packets and enable the VPN up-link port. When VPN mode is enabled, the switch will add a tag to the received tagged packet basing on the VLAN mapping entries.

Choose the menu “VLAN→VLAN VPN→VPN Config” to load the following page.

Figure 6-12 VPN Global Config

The following entries are displayed on this screen:

¾Global Config

VPN Mode:Allows you to Enable/Disable the VLAN-VPN function.

Global TPID:Enter the global TPID (Tag protocol identifier).

¾VPN Up-link Ports

Select the desired port as the VPN Up-link port. It’s required to set the port connected to the operators’ backbone networks to be up-link port.

Note:

If VPN mode is enabled, please create VLAN Mapping entries on the VLAN Mapping function page.

6.7.2 VLAN Mapping

VLAN Mapping function allows the VLAN TAG of the packets to be replaced with the new VLAN TAG according to the VLAN Mapping entries. And these packets can be forwarded in the new VLAN. If VLAN VPN function is enabled, a received packet already carrying a VLAN tag will be tagged basing on the VLAN Mapping entries and becomes a double-tagged packet to be forwarded in the new VLAN.

Choose the menu “VLAN→VLAN VPN→VLAN Mapping” to load the following page.

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TP-Link TL-SL5428E manual VPN Config, Vlan Mapping, ¾ VPN Up-link Ports