89 
Protocol type  Value 
LACP  0x8809 
802.1X  0x888E 
Table 7-3 Values of Ethernet frame protocol type in common use 
This VLAN VPN function is implemented on the VPN Config, VLAN Mapping and Port Enable 
pages. 
7.7.1 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 7-12 VPN Global Config 
The following entries are displayed on this screen:
 
  Global Config 
VPN Mode:  Allows you to Enable/Disable the VLAN-VPN function. 
Global TPID:  Enter the global TPID (Tag protocol identifier).   
  VPN Up-link Ports 
Unit:  Select the unit ID of the desired member in the stack. 
VPN Up-link ports:  Select the desired port as the VPN Up-link port. 
Note: 
If VPN mode is enabled, please create VLAN Mapping entries on the VLAN Mapping function 
page. 
7.7.2 Port Enable 
On this page, you can enable the port for the VLAN Mapping function. Only the port is enabled, 
can the configured VLAN Mapping function take effect.