Users Guide

interface Ethernet 1/1/2
no shutdown
ip address 20.1.1.1/24
DHCP Server
OS10# show running-configuration ip dhcp
!
ip dhcp server
!
pool Client_1.1.1.0
network 1.1.1.0/24
default-router 1.1.1.254
range 1.1.1.2 1.1.1.10
!
pool Server_20.1.1.0
network 20.1.1.0/24
default-router 20.1.1.2
range 20.1.1.3 20.1.1.10
OS10# show running-configuration route
ip route 1.1.1.0/24 20.1.1.1
ip route 3.1.1.0/24 20.1.1.1
Use Case 2: Configuration of source-interface CLI, link selection, and
server-override and VSS suboptions
NOTE:
You cannot use DellEMC OS10 switch as a DHCP Server for the Use Case 2 scenario since it is not VRF aware and
the DHCP server that you use must be compliant with the RFC standards mentioned under the DHCP Server configuration
example section. Configure at least one interface to match one of the configured network pools. An interface matches a
network pool when its IP address is included in the subnet defined for that network pool. For example, an interface with
IP address 1.1.1.1/24 matches a pool configured with network 1.1.1.0/24. For the DHCP server to process DHCP discovery
packets, you must configure the IP address pool for all the interfaces on which DHCP packets are received. Also, these
interfaces must be connected to the DHCP server. This configuration is required even if the IP addresses are not leased to
any DHCP client in the subnet directly connected to the DHCP server.
In this example, the DHCP client is connected to
eth 1/1/1 on the default VRF and eth 1/1/3 on the VRF hello.
Loopback 0 is used as the relay source-interface for the default VRF clients. The server-override option is enabled globally.
Configure the DHCP relay agent globally to insert the server ID override suboption and link selection suboption into the relay
agent information option of the DHCP packet. The VSS option is enabled globally and the vss-info value is configured on the
interfaces to send VRF information on the client-connected interfaces to the DHCP server.
System management
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