Subnet Vlan - D-Link Xstack DES-3528 Series Reference Manual

xStack® DES-3528/DES-3552 Series Layer 2 Managed Stackable Fast Ethernet Switch Web UI Reference Guide

Subnet VLAN

The Switch uses IP subnet-based VLAN classification to group devices.
Figure 3 - 1 Application of Subnet VLAN
The above figure is an example of subnet-based VLAN. The IP address of customer A is 172.18.0.1 and IP
address of customer B is 172.18.0.2. Both of them connect to the same port of the Switch through a HUB.
Customers can access Internet through VLAN 10 and the local server through VLAN 20. However, with the subnet
VLAN configuration in the example, IP 172.18.0.1 is assigned to VLAN 10 and 172.18.0.2 is assigned to VLAN 20.
Customer A can only access Internet, and customer B can only access the local server.
Subnet VLAN Settings
The subnet-based VLAN settings are used to create, find or delete a subnet-based VLAN entry. A subnet-based
VLAN entry is an IP subnet-based VLAN classification rule. If an untagged or priority-tagged IP packet is received
on a port, its source IP address will be used to match the subnet-based VLAN entries. If the source IP is in the
subnet of an entry, the packet will be classified to the VLAN defined for this subnet.
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