Macvlan based interface pings from host but not from namespace

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http://serverfault.com – My setup: Private network vboxnet1 1 Host, ubuntu desktop 1 VM, ubuntu server (VirtualBox) Adressing layout: HOST: VM: VM MAC NAMESPACE: On the VM, I ran the following commands: ip netns add mac # create a new nmespace ip link add link eth0 mac0 type macvlan # create a new macvlan interface ip link set mac0 netns mac On the mac namespace, inside the VM: ip link set lo up ip link set mac up ip addr add dev mac0 So that we basically end up with: (Like Inception ?) +------------------------+ | Host: 10. (HowTos)