debian/ubuntu kvm ipv6 bridge

interfaces

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

auto eno1
iface eno1 inet manual

# The primary network interface
auto br0
iface br0 inet dhcp
	bridge_ports eno1
	bridge_stp off
	bridge_fd 0
	bridge_maxwait 0
	up echo -n 0 > /sys/devices/virtual/net/br0/bridge/multicast_snooping
# This is an autoconfigured IPv6 interface
iface br0 inet6 auto
	dhcp 1