ASA Transparent Mode
The Cisco ASA software supports two firewall modes, routed and transparent. A transparent firewall is a layer 2 firewall that acts like a stealth firewall and is not seen as…
ASA Service Policies
The Cisco ASA firewall, Service Policies use the Modular Policy Framework (MPF) to provide a flexible way to configure ASA features, such as connection settings, inspection, QoS, redirection to service…
ASA TCP Intercept
An attacker can launch a DOS attack by flooding a host with thousands of TCP SYN packets, the source address would be spoofed with no way for the host server…
ASA Firmware Upgrade
ASA Firmware Upgrade This post will describe how to upgrade a standalone Firepower 1010 hardware running ASA firmware version 9.18.2 to 9.20.2. The software upgrade image will be copied to…
ASA NAT Exemption
The Order of Operations on the ASA processes NAT before determining whether the packet should be encrypted. In most scenarios an ASA is configured with a Dynamic PAT (Auto NAT)…
ASA 3DES License
ASA 3DES License When configuring a reimaged ASA device either using ASA or Firepower hardware, the device will not have a 3DES-AES license, which will mean cryptographic functionality will be…