Is it possible to add ipv6 to a deployed Shared network?

##### ISSUE TYPE

* Other / Question

##### COMPONENT NAME

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Network
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##### CLOUDSTACK VERSION

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CloudStack 4.18.1.0
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##### CONFIGURATION

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Network in advanced core zone
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##### OS / ENVIRONMENT

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N/A
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##### SUMMARY

Can you tell me if it is possible to add ipv6 to a deployed Shared network in an advanced core zone if the fields related to ipv6 were not filled in during its creation. Perhaps this can be achieved by editing the database? The important point is that there are already deployed vms in the network and their operability should not be disturbed.

首先检查 CloudStack 对高级核心区域中 Shared networks 的 IPv6 字段的处理方式，以及更改会如何影响已经部署的 VMs。确定是否存在一种不会中断这些 VMs 的受支持路径；完成的标准是记录该过程或确认此限制。

由索引模型根据 Issue 内容生成。