D-Link DGS-1210-48 Product Manual - Page 37

Configuration > Asymmetric VLAN, Apply, Enabling Asymmetric VLAN function

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5 Configuration D-Link Web Smart Switch User Manual Figure 54 - Configuration > 802.1Q VLAN > Example VIDs Figure 55 - Configuration > 802.1Q VLAN > VID Assignments Configuration > Asymmetric VLAN This function is located in the 802.1Q Configuration page. It allows devices in different VLANs to communicate with the servers, firewalls or other shared resources in the shared VLAN. This configuration is accomplished in three steps: Enabling Asymmetric VLAN function Creating shared VLAN and access VLAN Configuring the PVID of access VLAN Asymmetric VLAN is especially effective when used in a small network where a L3 routing device is absent, or if the resource to be shared is not capable of supporting tagged VLAN (for example, a printer). The example below is a typical application of Asymmetric VLAN. Servers and firewall are located in shared VLAN (default VLAN), and PCs 1, 2 and 3 are located in different VLAN. Because VLANs remain separate, PCs 1, 2, and 3 cannot communicate with each other; but all of them need to access the servers or the Internet behind the firewall. PC 1 (Port 5, V2) PC 2 (Port 6, V3) PC 3 (Port 7, V4) Firewall, V1~V4 Servers, V1~V4 Figure 56 - Configuration > 802.1Q VLAN > Asymmetric VLAN Example 1. Enable Asymmetric VLAN Enable Asymmetric VLAN and click the Apply button. The overlapping VLAN cannot be configured unless this function is enabled.. 33

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5
Configuration
D-Link Web Smart Switch User Manual
Figure 54 – Configuration > 802.1Q VLAN > Example VIDs
Figure 55 – Configuration > 802.1Q VLAN > VID Assignments
Configuration > Asymmetric VLAN
This function is located in the 802.1Q Configuration page. It allows devices in different VLANs to
communicate with the servers, firewalls or other shared resources in the shared VLAN. This configuration is
accomplished in three steps:
Enabling Asymmetric VLAN function
Creating shared VLAN and access VLAN
Configuring the PVID of access VLAN
Asymmetric VLAN is especially effective when used in a small network where a L3 routing device is absent,
or if the resource to be shared is not capable of supporting tagged VLAN (for example, a printer).
The example below is a typical application of Asymmetric VLAN. Servers and firewall are located in shared
VLAN (default VLAN), and PCs 1, 2 and 3 are located in different VLAN. Because VLANs remain separate,
PCs 1, 2, and 3 cannot communicate with each other; but all of them need to access the servers or the
Internet behind the firewall.
PC 1 (Port 5, V2)
Firewall, V1~V4
Servers, V1~V4
PC 2 (Port 6, V3)
PC 3 (Port 7, V4)
Figure 56 – Configuration > 802.1Q VLAN > Asymmetric VLAN Example
1. Enable Asymmetric VLAN
Enable Asymmetric VLAN and click the
Apply
button. The overlapping VLAN cannot be configured
unless this function is enabled..
33