Configuring an Internal DHCP Server Interaction With Other Features
OmniSwitch AOS Release 8 Network Configuration Guide December 2017 page 22-5
VitalQIP Message Service
This is the VitalQIP component that is present on the OmniSwitch acting as a remote server. This
component allows the OmniSwitch to interact with other VitalQIP components. Also other services such
as Active Lease Service register with the Message Server.
VitalQIP Active Lease Service
This component interacts with the VitalQIP server and provides the following capabilities:
• Viewing DHCP leases in VitalQIP
• Deleting Leases from VitalQIP.
Interaction With Other Features
This section contains important information about the internal DHCP server and its interaction with other
OmniSwitch features. Refer to the specific chapter for each feature to get more detailed information about
how to configure and use the feature.
Virtual Router Forwarding (VRF)
The same subnet cannot be shared across different VRFs since there is a single internal DHCP server
instance.
DHCP Snooping
Internal DHCP server and DHCP snooping are mutually exclusive and cannot function together in the
default VRF. DHCP snooping security is disabled when the DHCP server feature is enabled on the switch
since the DHCP server is internal and secure.
IP Interfaces
The DHCP client gets a lease only if the switch has an IP interface and the DHCP server is configured for
that particular subnet. If there are no IP address ranges defined for the incoming client interface, then the
client is not assigned a lease.
In case of IP multinetting, the primary interface address is used to calculate the subnet of the interface. If
there are no IP interfaces configured in the system, then the packet sent from the client is dropped.
VitalQIP Server
The VitalQIP framework provides a complete solution for IP Address Management. The OmniSwitch runs
the relevant components for a remote server such as Message Service and Active Lease that interact with
the VitalQIP server.
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