# 配置拨号接口
interface Dialer1
ppp chap user username@provider
ppp chap password cipher your_password
ip address ppp-negotiate
# 启用IPv6功能
ipv6 address auto
ipv6 address auto link-local
# 关键:启用DHCPv6客户端功能以获取PD
ipv6 dhcp client pd 1
mtu 1492
# 绑定物理接口到Dialer
interface GigabitEthernet1/0/0
pppoe-client dial-bundle-number 1# 创建VLAN并配置IPv6地址(用于连接交换机的接口)
interface Vlan-interface10
description To-Switch
ipv6 address auto link-local
# 配置DHCPv6中继功能
ipv6 dhcp select relay
# 指定中继到的DHCPv6服务器地址(PPPoE服务器)
ipv6 dhcp relay server-address FE80::1 # 使用链路本地地址
# 或者使用全局地址(如果运营商提供)
# ipv6 dhcp relay server-address 2001:db8::1
# 物理接口配置
interface GigabitEthernet1/0/1
port link-mode bridge
port access vlan 10# 配置VLAN接口
interface Vlan-interface1
description Uplink-to-Firewall
ipv6 address auto link-local
# 启用DHCPv6客户端请求PD
ipv6 dhcp client pd prefix-name ISP-PD rapid-commit
# 开启DHCPv6客户端功能
ipv6 address dhcp-alloc
# 在下游接口应用PD分配的前缀
interface GigabitEthernet1/0/1
# 分配前缀给这个接口(例如:/64)
ipv6 address prefix-name ISP-PD 0:0:0:1::/64
# 或者启用有状态DHCPv6分配
ipv6 address auto# 启用IPv6
ipv6
# 在VLAN接口上配置DHCPv6客户端
interface Vlan-interface1
ipv6 enable
ipv6 address auto link-local
# 请求PD前缀
ipv6 dhcp client pd my-prefix
# 同时请求IPv6地址
ipv6 address dhcp-alloc
# 使用获取到的前缀配置下游网络
interface Vlan-interface100
description User-VLAN
ipv6 enable
# 使用从PD获取的第一个前缀(::1:0:0:0:0/64)
ipv6 address my-prefix 1::1/64
# 如果需要无状态地址分配(SLAAC)
interface Vlan-interface100
ipv6 nd ra prefix my-prefix 1 no-autoconfigipv6 dhcp select relay:启用DHCPv6中继功能ipv6 dhcp relay server-address:指定DHCPv6服务器地址FE80::1# 查看PPPoE接口的IPv6信息
display ipv6 interface Dialer1 brief
# 查看DHCPv6获取的详细信息
display ipv6 dhcp client pd verbose
# 查看PPPoE对端的链路本地地址
display pppoe-client session packet# 在交换机上查看DHCPv6客户端状态
display ipv6 dhcp client pd verbose
display ipv6 dhcp client statistics
# 在路由器上查看DHCPv6中继状态
display ipv6 dhcp relay statistics
display ipv6 dhcp relay server-address
# 查看路由表,确认PD路由
display ipv6 routing-table# PPPoE接口获取PD
interface Dialer1
ipv6 dhcp client pd dynamic-pd
# 将获取的PD直接分配给DHCPv6地址池
ipv6 dhcp pool LAN-POOL
prefix delegation dynamic-pd
dns-server 2001:4860:4860::8888
dns-server 2001:4860:4860::8844
# 内网接口应用DHCPv6池
interface Vlan-interface10
ipv6 dhcp select server
ipv6 dhcp server apply pool LAN-POOLipv6 dhcp relay server-address FE80::1
# 或
ipv6 dhcp relay server-address FE80::1234 # PPPoE对端地址
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