# Install packages
  opkg update
  opkg install kmod-br-netfilter
  
  # Configure kernel parameters
  cat << EOF >> /etc/sysctl.conf
  net.bridge.bridge-nf-call-arptables=1
  net.bridge.bridge-nf-call-iptables=1
  net.bridge.bridge-nf-call-ip6tables=1
  EOF
  /etc/init.d/sysctl restart