红帽全球峰会3.3. DHCPv6 和 radvd 的比较
在 IPv6 网络中，只有路由器广告消息提供有关 IPv6 默认网关的信息。因此，如果您想在需要默认网关设置的子网中使用 DHCPv6，您必须额外配置路由器广告服务，如路由器广告守护进程(radvd)。
radvd 服务使用路由器广告数据包中的标志来声明 DHCPv6 服务器的可用性。
下表比较了 DHCPv6 和 radvd 的功能：
| DHCPv6 | radvd | |
|---|---|---|
| 提供有关默认网关的信息 | 否 | 是 |
| 保证随机地址以保护隐私 | 是 | 否 |
| 发送更多网络配置选项 | 是 | 否 |
| 将 MAC 地址映射到 IPv6 地址 | 是 | 否 |
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