Chapter 9 VLAN
ES3500 Series User’s Guide
108
Note: Subnet based VLAN applies to un-tagged packets and is applicable only when you
use IEEE 802.1Q tagged VLAN.
Figure 45
Advanced Application > VLAN > VLAN Port Setting > Subnet Based VLAN
The following table describes the labels in this screen.
Table 25
Advanced Application > VLAN > VLAN Port Setting > Subnet Based VLAN Setup
LABEL
DESCRIPTION
Active
Check this to activate this subnet based VLANs on the Switch.
DHCP-Vlan
Override
When DHCP snooping is enabled DHCP clients can renew their IP address through the DHCP
VLAN or via another DHCP server on the subnet based VLAN.
Select this to force the DHCP clients in this IP subnet to obtain their IP addresses through the
DHCP VLAN.
Apply
Click Apply to save your changes to the Switch’s run-time memory. The Switch loses these
changes if it is turned off or loses power, so use the Save link on the top navigation panel to
save your changes to the non-volatile memory when you are done configuring.
Active
Select this to activate the IP subnet VLAN you are creating or editing.
Name
Enter up to 32 alphanumeric characters to identify this subnet based VLAN.
IP
Enter the IP address of the subnet for which you want to configure this subnet based VLAN.
Mask-Bits
Enter the bit number of the subnet mask. To find the bit number, convert the subnet mask to
binary format and add all the 1’s together. Take “255.255.255.0” for example. 255 converts
to eight 1s in binary. There are three 255s, so add three eights together and you get the bit
number (24).
VID
Enter the ID of a VLAN with which the untagged frames from the IP subnet specified in this
subnet based VLAN are tagged. This must be an existing VLAN which you defined in the
Advanced Applications > VLAN screens.
Priority
Select the priority level that the Switch assigns to frames belonging to this VLAN.
Add
Click Add to save your changes to the Switch’s run-time memory. The Switch loses these
changes if it is turned off or loses power, so use the Save link on the top navigation panel to
save your changes to the non-volatile memory when you are done configuring.
Cancel
Click Cancel to begin configuring this screen afresh.
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