Re: [arch-general] tap device

3: tap0: <NO-CARRIER,BROADCAST,MULTICAST,PROMISC,UP> mtu 1500 qdisc

...

I do not understand why the tap0 profile is listed as DOWN. (# ip link set dev tap0 up does nothing more)

it's not down. it's UP, only NO-CARRIER. but for a tap device you also need a user-space program to handle it. what do you want to accomplish? do you perhaps need a veth device? -- damjan