jpbion@cisco.com (Joel P. Bion) (10/27/90)
Hello. cisco Systems has recently uncovered a bug in the use of IP access lists and IP fast switching with the 8.1(19)-8.1(21) releases. This problem has been fixed in 8.2 development code, and will also be included in the next GS maintenance release, currently scheduled for November 12th. The conditions under which the problem is seen are complex, but the result is that access would (to the end user) apparently be "randomly" granted or denied. Your safest insurance is to simply DISABLE fast switching on all interfaces to which an IP access list is applied. For example, to disable fast switching on interface ethernet 0, issue the following configuration commands: interface ethernet 0 no ip route-cache A mailing will be sent to this list indicating when the next 8.1 maintenance is available to fix this problem. Thank you, Joel Bion Manager, cisco Customer Engineering