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Within a dual VM test-setup a strange behaviour was observed. The two VMs are connected via one vde_switch instance (instancevirtualisation.vlans = [ 1 ]; IMO a bad attribute name for switch instances, has nothing to do with VLANs in sense of 802.1Q). A ping on the base interface (eth1) works, but not on VLAN subinterfaces (vlan1@eth1). A tcpdump of eth1 includes the ARP requests tagged with the subinterfaces VLAN ID, but responses seems not to pass the vde_switch. This works fine if performed on the base interface. Putting the vde_switch in hub mode results in flooding traffic to all vde_switch ports. This results in a expected behaviour and a ping on a VLAN subinterface works as expected. Signed-off-by: Philippe Schaaf <philippe.schaaf@secunet.com> |
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*** NixOS *** NixOS is a Linux distribution based on the purely functional package management system Nix. More information can be found at https://nixos.org/nixos and in the manual in doc/manual.