Asus GigaX3112 User Manual

Page 50

GigaX3112 Series Layer 3 Managed Switch

Note

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.

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.

Figure 38. L3 Interface Conﬁguration

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.

This manual is related to the following products:

GigaX3112F