Dhcp Client On A Vlan; Dhcp Client Operation With Stacking - Dell PowerEdge M IO Aggregator Command Reference Manual

DHCP Client on a VLAN

The following conditions apply on a VLAN that operates as a DHCP client:
• The default VLAN 1 with all ports auto-configured as members is the only L3 interface on the
Aggregator.
• When the default management VLAN has a DHCP-assigned address and you reconfigure the default
VLAN ID number, the Aggregator:
• Sends a DHCP release to the DHCP server to release the IP address.
• Sends a DHCP request to obtain a new IP address. The IP address assigned by the DHCP server is
used for the new default management VLAN.

DHCP Client Operation with Stacking

The DHCP client daemon runs only on the master unit and handles all DHCP packet transactions. The
DHCP client running on the master unit periodically synchronizes the lease file with the standby unit.
When a stack failover occurs, the new master requests the same DHCP server-assigned IP address on
DHCP client interfaces. On non-bound interfaces, the new master re-initiates a DHCP packet transaction
by sending a DHCP discovery packet.
92 | Dynamic Host Configuration Protocol (DHCP)