Dell PowerSwitch S4128F-ON OS10 Enterprise Edition User Guide Release 10.4.3.0 - Page 689

that acts as a DHCP relay must have its virtual-network IP address installed using a route leaking mechanism as a route to the underlay and advertised to all underlay routers, including the spine switches. Similarly, the DHCP server in the underlay VRF must be reachable from the client tenant VRF in the overlay. Configure a static route for the DHCP server subnet in the underlay default VRF, and leak the static route to the client tenant VRF in the overlay. This configuration sets up a bi-directional communication between the client and DHCP server across the virtual networks. The route-leaking configuration is not required if the VxLAN overlay subnet and underlay subnet are in same default VRF. Configure DHCP relay on VTEPs 1 Configure the IP address of the virtual-network relay interface in the non-default tenant VRF as a static route in the default VRF. OS10(config)# ip route 10.10.0.2/32 interface virtual-network 10 2 Configure a static IP route to the DHCP server interface in the tenant VRF. OS10(config)# ip route vrf tenant01 40.1.1.0/24 interface vlan40 3 Configure DHCP relay on the virtual-network interface of the tenant VRF. OS10(config)# interface virtual-network 10 OS10(conf-if-vn-10)# ip helper-address 40.1.1.1 vrf tenant01 View VXLAN configuration Use show commands to verify the VXLAN configuration and monitor VXLAN operation. View the VXLAN virtual network OS10# show virtual-network Codes: DP - MAC-learn Dataplane, CP - MAC-learn Controlplane, UUD - Unknown-Unicast-Drop Un-tagged VLAN: 888 Virtual Network: 60000 VLTi-VLAN: 2500 Members: VLAN 1000: port-channel1, ethernet1/1/9, ethernet1/1/10 VLAN 2500: port-channel1000 VxLAN Virtual Network Identifier: 16775000 Source Interface: loopback100(222.222.222.222) Remote-VTEPs (flood-list): 55.55.55.55(DP),77.1.1.1(DP) View the VXLAN virtual-network port OS10# show virtual-network interface ethernet 1/1/1 Interface Vlan Virtual-network ethernet1/1/1 100 1000 ethernet1/1/1 200 2000 ethernet1/1/1 300 3000 View the VXLAN virtual-network VLAN OS10# show virtual-network vlan 100 Vlan Virtual-network Interface 100 1000 ethernet1/1/1,ethernet1/1/2 100 5000 ethernet1/1/2 View the VXLAN virtual-network VLANs OS10# show vlan Codes: * - Default VLAN, M - Management VLAN, R - Remote Port Mirroring VLANs, @ - Attached to Virtual Network Q: A - Access (Untagged), T - Tagged NUM * 1 @ 100 @ 101 200 Status Description Q Ports up A Eth1/1/1-1/1/48 up T Eth1/1/2,Eth1/1/3 A Eth1/1/1 up T port-channel5 up T Eth1/1/11-1/1/15 VXLAN 689