问如何配置UTM以远程访问SQL Server2008 R2

EN

config firewall vip
    edit "sql_server"
    set extintf "<external_if>"
    set portforward enable
    set mappedip <ip_of_server>
    set extport <external_port_number_to_listen_on>
    set mappedport <internal_port_on_server>
    end
end

config firewall policy
edit 0
    set srcintf "<external_if>"
    set dstintf "internal_if"
    set srcaddr "all"
    set dstaddr "sql_server"
    set action accept
    set schedule "always"
    set service "ALL"
end
end