Re: [PATCH docs/manager/network/proxmox{-perl-rs,-ve-rs} v5 0/9] add IPv6 RA / SLAAC support to EVPN zones

["Lukas Sichert" <l.sichert@proxmox.com>]

On 2026-10-29 16:41, Hannes Laimer <h.laimer@proxmox.com> wrote:

> This series adds IPv6 Router Advertisement / SLAAC support to EVPN
> zones.

I have tested this by setting up a new EVPN Zone and enabling it on an
existing EVPN zone. Inside of the EVPN zone I used the installer of an
ubuntu server 26.04 to test configuration without any prior
configuration. This worked correctly and the new address was inside the
subnet. Also with tcpdump I was able to verify that the Managed and
Other flag were sent correctly. Also RDNSS was correctly advertised to
the machine when set. Inside the Subnet pane the SLAAC A option could
be used to disable SLAAC for that subnet. I did not test the L flag nor
the advanced options, as those are hidden even with "Advanced" ticked.
As far as I can tell from a quick glance into proxmox-widget-toolkit it
would need to be fixed there, because the advanced button only toggles
the advanced options for the general pane. Alternatively, all of the
options could be made non-advanced.

Two minor observations, which I would not consider necessary for this
series. Maybe somebody with a bit more UI experience could chime in
here:

One is not warned when RDNSS is not set. When configuring static
addresses inside a VM it is required to set a DNS server, but when using
SLAAC the VM is just not able to resolve URLs. Also the ubuntu installer
did not allow setting DNS manually, so this can cause some confusion.

Currently in the subnet tab there is the option to set DHCP Ranges. This
option currently does not do anything as EVPN does not support DHCP.
Combined with the fact that you can set a Managed DHCP option it seems
like this would start a DHCP Server. As there already exists and
override for this Panel to add the RA subnet options I think the Range
tab could be deleted here. Still it is a bit weird that then only for
EVPN Zones DHCP Ranges are deactivated, even though other Zones also do
not support them.