proc ConfigIpv4PrefixNgpf { ipv4StackObj prefixValue } {
    set ipv4Prefix [ixNet getAttribute $ipv4StackObj -prefix]
    set ipv4PrefixObj [ixNet add $ipv4PrefixObj "singleValue"]
    ixNet setAttribute $ipv4Prefix -value $prefixValue
    ixNet commit

    return [lindex [ixNet remapIds $ipv4PrefixObj] 0]
}