On Aug 25 2016, Dryden Personalis wrote:
> iface eth0 inet dhcp
> iface eth0:1 inet manual

There is a problem here, these two lines shouldn't exist at all.

> iface br1 inet static
>   bridge_ports eth0:1
>   bridge_fd 0
>   address <address>
>   netmask 255.255.255.0

Because you are using at br1 an alias of the interface that DHCP is
assigning the IP to. You shouldn't assign an IP to an interface you are
using on the bridge, instead assign the IP to the bridge itself:

iface br1 inet dhcp
bridge_ports eth0

If you want more addresses you can add them later in the same br1 definition
with an up statement using ifconfig or ip addr add, for example.

The thing here is to assign the IPs to br1, not to its bridged interfaces. 

If you do it that way you won't find weird problems.

Regards.
-- 
Manty/BestiaTester -> http://manty.net

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