Re: [Xen-users] bridge interface with (initially) no ports

["Fajar A. Nugraha" <fajar@xxxxxxxxx>]

On Sat, Jun 27, 2009 at 9:50 AM, James
Harper<james.harper@xxxxxxxxxxxxxxxx> wrote:
> I use some completely virtual networks inside my DomU's. In Dom0 I want
> to have the following in /etc/network/interfaces:
>
> auto br-wan
> iface br-wan inet static
>  address x.y.z.254
>  netmask 255.255.255.0
>  bridge_maxwait 0
>  bridge_ports none
> up ip addr add 2002:xy:xfe:3::1/64 dev $IFACE
>
> but of course when the br-wan interface comes up, it has no mac address
> because it has no ports yet to inherit a mac address from.

Here's what I get on my Ubuntu
# brctl addbr br-test1
# ip link show br-test1
12: br-test1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
    link/ether ea:32:77:5d:2d:f7 brd ff:ff:ff:ff:ff:ff

it has a mac address by default.

Even if it doesn't have a mac address, you should be able to assign one
# ip link set br-test1 addr 00:16:3e:00:00:01
# ip link show br-test1
12: br-test1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
    link/ether 00:16:3e:00:00:01 brd ff:ff:ff:ff:ff:ff

-- 
Fajar

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