# File lib/methods.rb, line 900
def validate_ip_addr(ip, options=nil)
    known_args = [:Version]
    version = nil

    # validate options
    if (options)
        raise ArgumentError, "Hash expected for argument 'options' but #{options.class} provided." if (!options.kind_of?(Hash))
        NetAddr.validate_args(options.keys,known_args)

        if (options.has_key?(:Version))
            version = options[:Version]
            if (version != 4 && version != 6)
                raise ArgumentError, ":Version should be 4 or 6, but was '#{version}'."
            end
        end
    end

    if ( ip.kind_of?(String) )
        version = NetAddr.detect_ip_version(ip) if (!version)
        NetAddr.validate_ip_str(ip,version)

    elsif ( ip.kind_of?(Integer) )
        NetAddr.validate_ip_int(ip,version)

    else
        raise ArgumentError, "Integer or String expected for argument 'ip' but " +
                             "#{ip.class} provided." if (!ip.kind_of?(String) && !ip.kind_of?(Integer))
    end

    return(true)
end