proc ConfigIpv4GatewayIpNgpf {args} {
    set direction increment
    set step 0.0.0.0

    set paramList {}
    set argIndex 0
    while {$argIndex < [llength $args]} {
	set currentArg [lindex $args $argIndex]
	switch -exact -- $currentArg {
	    -ipv4Obj {
		set ipv4Obj [lindex $args [expr $argIndex + 1]]
		incr argIndex 2
	    }
	    -gatewayIp  {
		set gatewayIp [lindex $args [expr $argIndex + 1]]
		append paramList " -start $gatewayIp"
		incr argIndex 2
	    }
	    -direction {
		set direction [lindex $args [expr $argIndex + 1]]
		append paramList " -direction $direction"
		incr argIndex 2
	    }
	    -step {
		set step [lindex $args [expr $argIndex + 1]]
		append paramList " -step $step"
		incr argIndex 2
	    }
	    -ipv4GatewayPortStep {
		set ipv4GatewayPortStep [lindex $args [expr $argIndex + 1]]
		incr argIndex 2
	    }
	    default {
		puts "Connect: No such parameter: $currentArg"
		return 1
	    }
	}
    }

    set gatewayMultivalue [ixNet getAttribute $ipv4Obj -gatewayIp]

    puts "\t$paramList"
    if {[catch {eval ixNet setMultiAttribute $gatewayMultivalue/counter $paramList} errMsg]} {
	puts "\nConfigGatewayIpNgpf failed: $errMsg"
	return 1
    }
    ixNet commit

    if {[info exists ipv4GatewayPortStep]} {
	puts "\nConfiguring ConfigIpv4GatewayIpNgpf port step: $gatewayMultivalue/nest:1 $ipv4GatewayPortStep"
	ixNet setAttribute $gatewayMultivalue/nest:1 -step $ipv4GatewayPortStep
	ixNet commit
    }
}