R3303-HP HSR6800 Routers Layer 2 - LAN Switching Configuration Guide

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Figure 63 Network diagram
Configuration procedure
1. Configure VLANs and QinQ termination.
For the configuration procedure, see "Ambiguous QinQ termination c
onfiguration example."
2. Configure related PPPoE settings on GigabitEthernet 4/0/1.10.
For more information about the PPPoE configuration, see Layer 2—WAN Configuration Guide.
Configuration example for QinQ termination
supporting DHCP relay
Network requirements
As shown in Figure 64:
• Provider A and Provider B are edge devices on the service provider network.
• DHCP client A and DHCP client B are devices on the customer networks.
• Provider A is the DHCP relay agent and Provider B is the DHCP server.
• Provider A and Provider B communicate with each other through Layer 3 interfaces.
The expected results after the configuration are:
• DHCP relay agent Provider A receives double-tagged packets sent from DHCP clients, terminates
these packets by removing their inner and outer VLAN tags, and forwards the packets to DHCP
server Provider B through the service provider network.
• DHCP client A and client B can apply for IP addresses and related network configuration
parameters from Provider B through the service provider network.