Re: Debian VMs on a routed libvirt ULA network are not exchanging neighbor sollicitations with the host

2021-03-17 Thread Mathieu Baudier
> This sounds like multicast packets aren't getting through the bridge. > Check the values of /sys/class/net/$IFACE/bridge/multicast_querier and > /sys/class/net/$IFACE/bridge/multicast_snooping On the host, I get: cat /sys/class/net/virbr2/bridge/multicast_querier 0 cat

Re: Debian VMs on a routed libvirt ULA network are not exchanging neighbor sollicitations with the host

2021-03-16 Thread peter
> "Mathieu" == Mathieu Baudier writes: This sounds like multicast packets aren't getting through the bridge. Check the values of /sys/class/net/$IFACE/bridge/multicast_querier and /sys/class/net/$IFACE/bridge/multicast_snooping Peter C

Re: Debian VMs on a routed libvirt ULA network are not exchanging neighbor sollicitations with the host

2021-03-16 Thread Mathieu Baudier
Hello Bastian, > - Neighbor sollicitations between the host and the CentOS VMs are being > exchanged regularly > > - With the Debian guest: > > - Neighbor sollicitations are exchanged when the VM is rebooted > > - Afterwards they are not exchanged... > > - ... unless one explicitly pings the

Re: Debian VMs on a routed libvirt ULA network are not exchanging neighbor sollicitations with the host

2021-03-16 Thread Bastian Blank
Hi Mathieu On Tue, Mar 16, 2021 at 10:23:15AM +0100, Mathieu Baudier wrote: > What I can observe is that: > - Neighbor sollicitations between the host and the CentOS VMs are being > exchanged regularly > - With the Debian guest: > - Neighbor sollicitations are exchanged when the VM is rebooted