Re: [PATCH proxmox{,-backup} v2 0/2] fix #7329: network: unkwown iface option error

[Christian Ebner <c.ebner@proxmox.com>]

On 3/16/26 4:21 PM, Shan Shaji wrote:
> Using `inet6 auto` resulted in an error message in the web GUI. To fix
> the issue, I added the `Auto` config method variant to the `NetworkConfigMethod` enum.
> This fixed the error in the web GUI, but when editing the interface through the UI,
> the `inet6 (auto)` family was still being removed.
> 
> For example, if I updated only the comment for the interface, the `auto` method was dropped.
> 
> This happened because, when editing the interface without providing
> `cidr6` or `gateway6` values, the config method was being replaced
> with `Manual` regardless of the current `inet6` method from the existing config.
> 
> Later, when writing the config to interfaces.new file if the config method was
> `Manual` and there were no values present inside the `inet6` block, then the
> entire stanza was removed.
> 
> To fix this, the `inet6` config method is now set to `Manual` only if the
> interface method6 prop does not already have a value.
> 
> changes since v1: Thanks @chris
> - added `fixes` trailer.
> - fixed typo s/Inorder/In order
> - api: fixed inet6 stanza getting dropped.
> 
> #### Testing
> - added a new bridge interface from the web UI.
> - manually added inet6 (auto) address family to /etc/network/interfaces file for the
>    bridge interface.
> - now from web ui, added a comment for the same interface.
> - verified if the block is getting removed. The comment was added and the block
>    not getting removed.
> - Now updated the vmbr0 IPv4/CIDR value.
> - verified if the method changed from manual to static.
> - updated the vmbr0 IPv6/CIDR value.
> - verified if the method changed from auto to static.

Great, thanks!

Can confirm that this now parses the inet6 auto stanza as expected and 
also no longer modifies it on unrelated network config changes.

FWIW, consider:

Reviewed-by: Christian Ebner <c.ebner@proxmox.com>
Tested-by: Christian Ebner <c.ebner@proxmox.com>