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Configuration Guide - IP Service

CloudEngine 8800, 7800, 6800, and 5800 V200R003C00

This document describes the configurations of IP Service, including IP address, ARP, DHCP, DNS, IP performance optimization, IPv6, DHCPv6, and IPv6 DNS.
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Distributed VXLAN Gateways Functioning as DHCPv6 Relay Agents

Distributed VXLAN Gateways Functioning as DHCPv6 Relay Agents

After DHCPv6 relay is enabled on a VXLAN gateway, terminal tenants can dynamically obtain IPv6 addresses using DHCPv6.

DHCPv6 Client and Server on the Same VPN

On the network shown in Figure 8-21:
  • Distributed Layer 3 VXLAN gateways are deployed on leaf1, leaf2, and leaf3, and they are connected over a Layer 3 VXLAN tunnel.
  • VM1 and VM3 are in the same subnet. VM2 and VM4 are in another subnet.
  • The DHCPv6 server connected to leaf3 belongs to the same VPN but different subnet as VM1, VM2, VM3, and VM4.
After DHCPv6 relay is enabled on leaf1 and leaf2, VM1, VM2, VM3, and VM4 can all function as DHCPv6 clients to dynamically request for IPv6 addresses from the DHCPv6 server.
Figure 8-21 Distributed VXLAN Gateways Functioning as DHCPv6 Relay Agents in Intra-VPN Scenarios

DHCPv6 Client and Server on Different VPNs

On the network shown in Figure 8-22:
  • Distributed Layer 3 VXLAN gateways are deployed on leaf1, leaf2, and leaf3, and they are connected over a Layer 3 VXLAN tunnel.
  • VM1 and VM3 belong to the subnet with VNI 10. VM2 and VM4 belong to the subnet with VNI 20.
  • The DHCPv6 server connected to leaf3 belongs to a different subnet as VM1, VM2, VM3, and VM4.
  • VM1, VM2, VM3, and VM4 belong to VPN 10. The DHCPv6 server belongs to VPN 20.
After DHCPv6 relay is enabled on leaf1 and leaf2, VM1, VM2, VM3, and VM4 can all function as DHCPv6 clients to dynamically request for IPv6 addresses from the DHCPv6 server.
Figure 8-22 Distributed VXLAN Gateways Functioning as DHCPv6 Relay Agents in Inter-VPN Scenarios
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Updated: 2019-05-08

Document ID: EDOC1100004354

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