1-54
Static Virtual LANs (VLANs)     
Special VLAN Types
Using DHCP to Obtain an IP Address
You can use DHCP to obtain an IPv4 address for your Management VLAN or 
a client on that VLAN. The following examples illustrate when an IP address 
will be received from the DHCP server. 
1. If Blue_VLAN is configured as the Management VLAN and the DHCP 
server is also on Blue_VLAN, Blue_VLAN receives an IP address. Because 
DHCP Relay does not forward onto or off of the Management VLAN, 
devices on Red_VLAN cannot get an IP address from the DHCP server on 
Blue_VLAN (Management VLAN) and Red_VLAN does not receive an IP 
address. See figure 1-36.
Figure 1-36.  Example of DHCP Server on Management VLAN
DHCP
Server
Red_VLAN
Blue_VLAN is Management VLAN
Blue_VLAN is Management VLAN - receives IP 
address
Red_VLAN does not receive IP address