[pve-devel] [PATCH ifupdown2] patch: fix bond mac address at boot.

[Thomas Lamprecht]

Am 01/09/2023 um 11:12 schrieb Alexandre Derumier:
> since systemd v241, like for bridge, the bond mac is setup
> randomly at boot, instead inherit from first slave.
> 
> Then, on next ifreload, ifupdown2 was already fixing it,
> but with an down/up of the bond (with potentials impact on the network).
> 


Hmm, we now got a few reports in the forum that get quite a few
"Received packet on bond0 with own address as source" warnings
after upgrading to ifupdown2 to the version that just ships this
patch here:


https://forum.proxmox.com/threads/kernel-vmbr0-received-packet-on-bond0-with-own-address-as-source-address.133152/#post-597121
https://forum.proxmox.com/threads/vmbr0-received-packet-on-bond0-with-own-address-as-source-address.135044/#post-597283

Seem like the switches send the ECTP loopback packages sometimes
back over the other link due both having the same MAC address,
Wolfgang thinks that shouldn't matter though..

They mention that a downgrade helps so even if this is a switch
(configuration) issue on their side it might not be ideal to regress
here – do you have any idea what's going on?