[pve-devel] [PATCH manager/network 0/3] add IPv6 SLAAC for vnets in evpn zones

[Hannes Laimer <h.laimer@proxmox.com>]

FRR natively supports sending RAs, if configured to do so, dnsmasq also
doesn't seem to correctly send RAs in a VRF context. Both DHCPv4 and v6
worked fine when running on a VNet, but RAs just wouldn't be send
correctly. From a quick look it may have to the with dnsmasq not using
the link-local address of the interface, or not sending it if the
interface also has another address attached. [1][2] I did try building
it myself with some changes, but could not get the RA packets to "hit
the wire", they never showed up in tcpdump. So either they were not sent
or the kernel dropped them cause they didn't have a ll source address.
Regardless, these are the two reasons why I went with using FRR directly
rather than using dnsmasq like we aleardy do for DHCPv4.

This series adds a `ipv6-nd-prefix`-option for vnets that is than used by
client on the vnet to perform SLAAC. Without a prefix specified, SLAAC
is not enabled.

[1] https://thekelleys.org.uk/gitweb1/?p=dnsmasq.git;a=blob;f=src/radv.c;h=aaf6b71e27ba392d7517c68fa90f251eccbf4641;hb=d8f66f4fda02ca50616f428d9c161c8ca1a0cb70#l308
[2] https://thekelleys.org.uk/gitweb1/?p=dnsmasq.git;a=blob;f=src/dhcp6.c;h=482caf7dd492849f5a454316d86e759677c0072a;hb=d8f66f4fda02ca50616f428d9c161c8ca1a0cb70#l138

pve-network:

Hannes Laimer (2):
  evpn: add ipv6 slaac support for vnets in an evpn zone
  evpn: add test for vnets with a `ipv6-nd-prefix` set

 src/PVE/API2/Network/SDN/Vnets.pm             |  7 +++
 src/PVE/Network/SDN/Controllers/EvpnPlugin.pm | 15 ++++++
 src/PVE/Network/SDN/VnetPlugin.pm             |  8 +++
 .../expected_controller_config                | 49 +++++++++++++++++++
 .../ipv6_slaacprefix/expected_sdn_interfaces  | 42 ++++++++++++++++
 .../zones/evpn/ipv6_slaacprefix/interfaces    |  7 +++
 .../zones/evpn/ipv6_slaacprefix/sdn_config    | 39 +++++++++++++++
 7 files changed, 167 insertions(+)
 create mode 100644 src/test/zones/evpn/ipv6_slaacprefix/expected_controller_config
 create mode 100644 src/test/zones/evpn/ipv6_slaacprefix/expected_sdn_interfaces
 create mode 100644 src/test/zones/evpn/ipv6_slaacprefix/interfaces
 create mode 100644 src/test/zones/evpn/ipv6_slaacprefix/sdn_config


pve-manager:

Hannes Laimer (1):
  ui: sdn: add `ipv6-nd-prefix` field to vnet form

 www/manager6/sdn/VnetEdit.js | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)


Summary over all repositories:
  8 files changed, 188 insertions(+), 0 deletions(-)

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