... current version of BGP, including 17 72, 17 73, 17 74, 19 30, 19 66, 19 97, 19 98, 2042, 2385, 2439, 2545, 2547, 2796, 2858, 2 918 , 3065, 310 7, 3392, 4223, and 42 71. BGP4 has many enhancements over ... the route to 17 2 .18 .0.0 /16 . If that route is passed through AS 65500 using IBGP and is mistakenly announced to ISP-B, then ISP-B may decide that the best way to get to 17 2 .18 .0.0 /16 is through ... Asia-Pacific region. AS numbers are 16 -bit numbers ranging from 1 to 65535; RFC 19 30 provides guidelines for the use of AS numbers. A range of AS numbers, 64 512 through 65535, is reserved for...