{
    # Having created a new Inbound TCP chain, activate it and destroy the old.
    $OUT .=<<'EOF';
    /sbin/iptables --replace InboundTCP 1 \
	    --jump $NEW_InboundTCP
    /sbin/iptables --flush $OLD_InboundTCP
    /sbin/iptables --delete-chain $OLD_InboundTCP
EOF
}
