ZyXEL Communications MES-3528 User Manual page 102

Chapter 9 VLAN
Note: Subnet based VLAN applies to un-tagged packets and is applicable only when
you use IEEE 802.1Q tagged VLAN.
Figure 52 Advanced Application > VLAN > VLAN Port Setting > Subnet Based
VLAN
The following table describes the labels in this screen.
Table 18 Advanced Application > VLAN > VLAN Port Setting > Subnet Based VLAN
Setup
LABEL
Active
DHCP-Vlan
Override
Apply
Active
Name
IP
Mask-Bits
102
DESCRIPTION
Check this box to activate this subnet based VLANs on the Switch.
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 checkbox to force the DHCP clients in this IP subnet to obtain
their IP addresses through the DHCP VLAN.
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.
Check this box to activate the IP subnet VLAN you are creating or editing.
Enter up to 32 alpha numeric characters to identify this subnet based
VLAN.
Enter the IP address of the subnet for which you want to configure this
subnet based VLAN.
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).
MES-3528 User's Guide