环境 Cisco IOS
问题 有无在RSRB Token-ring上只允许SNA的过滤的例子?
解答 interface tokenring x
access-expression in lsap(202)
!
access-list 202 permit 0x0404 0x0001 ! permit SNA frames cmd or response
access-list 202 permit 0x0004 0x0001 ! permit SNA explorers with NULL DSAP