ASA Cisco ASA Object Groups: Network, Service, and Protocol Object groups are the difference between an ACL you can read and one you cannot. Without them, an ACL that J May 10, 2026 9 min read
ASA Cisco ASA Interfaces, Subinterfaces, and VLAN Trunks The interface configuration on a Cisco ASA looks superficially like an IOS router, but two things are different and both J May 10, 2026 8 min read
ASA Cisco ASA Routed Mode vs Transparent Mode Cisco ASA can run in two firewall modes: routed mode, where the firewall is a Layer 3 hop with its J May 10, 2026 9 min read
ASA Cisco ASA Common Outage Scenarios and Fixes Every Cisco ASA that runs long enough hits a small set of repeatable failure modes: a NAT pool exhausting, an J May 10, 2026 8 min read
ASA Cisco ASA Connection Table and xlate Table Troubleshooting The Cisco ASA tracks two layered tables that explain almost every "is this traffic flowing" question: the connection J May 10, 2026 9 min read
ASA Cisco ASA asp-drop Counters Explained The Cisco ASA's accelerated security path (ASP) is the data-plane fast path that handles every forwarded packet after J May 10, 2026 8 min read