Weird.
You have bridge-utils installed? Does
brctl addbr lxcbr0
ifconfig lxcbr0 192.168.42.8 netmask 255.255.255.0
/opt/bin/lxcbr0-up
work?
Quoting matthew byers (faintstlsa...@gmail.com):
> stlsaint@stlsaint-devcore:~$ sudo ifup lxcbr0
> SIOCSIFADDR: No such device
> lxcbr0: ERROR while getting interface flags: No such device
> SIOCSIFNETMASK: No such device
> lxcbr0: ERROR while getting interface flags: No such device
> Failed to bring up lxcbr0.
>
>
> On Fri, Jun 3, 2011 at 6:14 PM, Serge Hallyn
> <serge.hal...@canonical.com>wrote:
>
> > Quoting matthew byers (faintstlsa...@gmail.com):
> > > Hey i am trying to run lxc on my laptop but am having problem setting up
> > > bridge. My internet connection consist of a WAN that i have absolutely no
> > > control over. I connect my tablet to the network and then tether it to my
> > > laptop. I followed directions from this site:
> > >
> > http://s3hh.wordpress.com/2011/05/17/lxc-containers-on-a-host-with-wireless/up
> > > until the point of running: ifup br0 #in which i get the Ignoring Uknown
> > > Interface.....as shown below
> > >
> > > stlsaint@stlsaint-devcore:~$ cat /etc/network/interfaces
> > > auto lo
> > > iface lo inet loopback
> > >
> > > auto lxcbr0
> > > iface lxcbr0 inet static
> > > address 192.168.42.8
> > > netmask 255.255.255.0
> > > post-up /opt/bin/lxcbr0-up
> > >
> > >
> > > stlsaint@stlsaint-devcore:~$ cat /opt/bin/lxcbr0-up
> > > #!/bin/sh
> > > # This is the address we assigned to our bridge in
> > /etc/network/interfaces
> > > braddr=192.168.42.8
> > > # ip address range for containers
> > > brrange=192.168.42.9,192.168.42.230
> > > iptables -A FORWARD -i lxcbr0 -s /24 -m conntrack --ctstate NEW -j ACCEPT
> > > iptables -A FORWARD -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
> > > iptables -A POSTROUTING -t nat -j MASQUERADE
> > > dnsmasq --bind-interfaces --conf-file= --listen-address
> > --except-interface
> > > lo --dhcp-range --dhcp-lease-max=253 --dhcp-no-override
> > >
> > >
> > > stlsaint@stlsaint-devcore:~$ sudo ifup br0
> > > Ignoring unknown interface br0=br0.
> >
> > D'oh!
> >
> > Halfway through writing the post I changed br0 to lxcbr0. Apparently not
> > completely.
> > What happens if you do:
> >
> > sudo ifup lxcbr0
> >
> > ?
> >
>
>
>
> --
> God Bless
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