Last month when our PIX 515E was running into the memory leak problem (CSCsi53936)with PIX code 7.2(1) we were told to upgrade to the cisco interim code 7.2(2)22. So slowly we have been migrating our PIX 515E boxes to that code release in order to prevent the memory leak problem.
However, yesterday after we have successfully upgraded the code from 7.2(1) to 7.2(2)22 interim release we ran into this strange phenomenon. The ACL between different interfaces on the same firewall suddenly supposed working. For instance, the hosts behind E2 (security level 10) suddenly failed to communicate with the hosts behind E1 (security level 100). However, the hosts behind E3 (security level 10) has no problems in reaching to the hosts behind E1. All the ACLs have been working and in place for years. I wonder if anyone has encountered this issue after they upgrade to the interim code and how they go about to fix it. Or should I upgrade the code to the latest release of 8.0(2) ?
Any advice would be appreciated. Thanks.