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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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Centralized VXLAN Gateways Functioning as DHCPv6 Relay Agents

Centralized VXLAN Gateways Functioning as DHCPv6 Relay Agents

VXLAN support for DHCPv6 relay allows tenants to dynamically obtain IPv6 addresses using DHCPv6.

DHCPv6 Client and Server on the Same VPN

On the network shown in Figure 8-19, the requirements are as follows:
  • Device1, Device2, and Device3 are Layer 2 VXLAN gateways that are connected to the VXLAN Layer 3 gateway over VXLAN tunnels. VXLAN tunnel setup and data forwarding are implemented on an IPv4 network.
  • VM1 and VM3 belong to one subnet, and VM2 and VM4 belong to another subnet.
  • The DHCPv6 server connected to Device3 belongs to the same VPN but different subnet as VM1, VM2, VM3, and VM4.
After DHCPv6 relay is deployed on the VXLAN Layer 3 gateway, VM1, VM2, VM3, and VM4 can all function as a DHCPv6 client to dynamically request for IPv6 addresses from the DHCPv6 server.
Figure 8-19 VXLAN support for DHCPv6 relay in intra-VPN scenarios

DHCPv6 Client and Server on Different VPNs

Figure 8-20 shows an inter-VPN scenario where VM1, VM2, VM3, and VM4 belong to one VPN while the DHCPv6 server belongs to another VPN.

Figure 8-20 VXLAN support for DHCPv6 relay in inter-VPN scenarios

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Updated: 2019-05-08

Document ID: EDOC1100004354

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