A string containing an IPv4 address in dotted decimal notation. A value type which decides which routes are deny for in/out/all traffic A value type which decides which AS are deny for in/out/all traffic The definition of an AS. It has to have an AS ID given in a positive integer. AS IDs between 1 and 64511 are reserved for public use (Internet), and AS IDs between 64512 and 65535 are for private use. In this AS, you have BGP router(s), the deny routes (IN/OUT) and the deny AS (IN/OUT).