How do I set a network bridge to have an MTU of 9000?

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http://askubuntu.com – I have to gigabit network interfaces which I have bridged. /etc/network/interfaces is: auto lo iface lo inet loopback # Set up interfaces manually, avoiding conflicts with, e.g., network manager iface eth0 inet manual iface eth1 inet manual # Bridge setup auto br0 iface br0 inet static bridge_ports eth0 eth1 address broadcast netmask gateway dns-nameservers But the MTU is only 1500 myth@myth:~$ traceroute --mtu traceroute to (, 30 hops max, 65000 (HowTos)