ASUSTeK COMPUTER GigaX3112 Series User Manual page 50

Mask: Interface Subnet mask
MAC: Mac address of this interface
Status: up/down status of this interface
DHCP IP Helper Addr: The DHCP Helper Address is the IP address of your
DHCP server.
Select the corresponding interface and configure the interface parameters then
click on the button. The field you changed will update the content in the display
window. To save any changes and make it effective immediately, click . Use to
refresh the setting.
There is one other catch with DHCP and VLANs. Because each
VLAN is a separate IP subnet, you must configure your DHCP
server to deliver IP addresses appropriate to each subnet.
Note
With Windows 2000ʼs DHCP server, you do this by setting up
a separate DHCP realm for each VLAN. Not all DHCP servers
have this capability. If your existing DHCP server works only with
flat LANs, youʼll likely have to upgrade to a more sophisticated
package.
Special Note: It is strong recommended that each interface should have its
own VLAN. That means one VLAN should not be assigned for two interfaces.
Otherwise it will make some confusion while RIP enable. It is also recommended
that only one physical port should be assigned to the VLAN that used for L3
interface. Assign multiple ports to one L3 interface, the L3 traffic will always go
through the port with lowest ID. The traffic load sharing is not supported in this
release.
GigaX3112 Series Layer 3 Managed Switch
Figure 38. L3 Interface Configuration
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