> For the complete documentation index, see [llms.txt](https://docs.console.zenlayer.com/welcome/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.console.zenlayer.com/welcome/cn/elastic-compute/get-started/manage-networking/advertise-byoip.md).

# 宣告 BYOIP

## 前提条件

* 如果您需要保留现有的 IP、信誉或配置，请使用 BYOIP。
* 请先[在 RIR 中预注册 ROA/RPKI](/welcome/cn/elastic-compute/get-started/manage-networking/advertise-byoip/register-roa-rpki-with-rir.md) 以启用 BYOIP。
* 请提前[在 IRR 中注册对应的 route object](/welcome/cn/elastic-compute/get-started/manage-networking/advertise-byoip/register-a-route-object-in-the-irr.md)。
* 此功能为受限功能，请联系我们申请开通。

## 操作步骤

1. 进入 **弹性算力** > **IP 地址池** > **CIDR 地址块**，点击 **+ BYOIP**。
2. 宣告您的 IP 前缀。<br>

   <div align="left" data-with-frame="true"><figure><img src="/files/UQDBKlNDXNdOkgKHPzpq" alt=""><figcaption></figcaption></figure></div>
3. 如有需要，将其分配至资源组。
4. 检查并确认订单。

## 结果

Zenlayer 会在激活 BYOIP 之前验证您的 RPKI/ROA 和对应的 route object。


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