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Cisco ASA Ping TCP troubleshooting command

Cisco ASA Ping TCP troubleshooting command

We’ve all used ping to test basic connectivity and we all know that command sends ICMP packets and waits for replies. On Cisco ASA’s you can also use an enhanced version of this command to send any TCP packet instead of just ICMP. This is awesome for troubleshooting purposes and verifying remote services/ports are up, running and reachable. It’s also a great trick to force traffic over a VPN connection to bring a tunnel up from the ASA! Let’s assume…

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Cisco ASA Active/Active Failover

Cisco ASA Active/Active Failover

Cisco ASA Active/Active failover requires two identical Cisco ASA appliances talking to each other through a dedicated failover link and a dedicated stateful link (these can be the same interface). With Active/Active failover both appliances will carry traffic. Failover contexts and failover groups need to be created, the failover group is then applied to the Primary or Secondary ASA appliance. Example configuration parameters:ASA1 & ASA2 are the firewall names being used. Make sure the interfaces being used for the failover…

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Cisco ASA Active/Standby Failover

Cisco ASA Active/Standby Failover

Active/Standby failover enables you to use a standby ASA to take over for a failed unit. When the active unit fails it changes to the standby state while the standby unit changes to the active state. The unit that becomes active assumes the IP addresses and the MAC addresses of the failed unit and starts passing traffic. In Active/Standby failover, failover occurs on a unit basis, even on systems running in multiple context mode, you can’t failover individual contexts. Aside…

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Cisco FirePOWER Management Center Alerting – v6

Cisco FirePOWER Management Center Alerting – v6

If you want to be notified of system alerts without having to stare at the dashboard then you need to configure an email server and external alerting. Configure Email Notification Navigate to System > Configuration > Email Notification Enter the Mail Relay Host, the port number, the encryption method, the from address and the authentication settings and click Save. Make sure to click Test Mail Server Settings to make sure they are working properly before proceeding.  

Cisco ASA5500-X FirePOWER Preparation v6

Cisco ASA5500-X FirePOWER Preparation v6

To upgrade an ASA’s FirePOWER module to version 6 and get it ready to be integrated into FirePOWER Management Center is a bit of a process but thankfully most of it isn’t production impacting. First a few prerequisites. The ASA must have a SSD drive installed and functional.  Do a show inventory from the CLI to make sure one is found before you get started, if you have a drive installed but it’s not showing up try rebooting the ASA….

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Cisco FirePOWER Management Center v6 – Adding Licenses

Cisco FirePOWER Management Center v6 – Adding Licenses

This will cover Classic Licensing, not Smart Licensing for FirePOWER features.  You’ll receive your PAK code from Cisco either electronically or on a paper card.  From there you can goto https://cisco.com/go/license to register it and get the actual .LIC file. If you haven’t purchased a license yet, you can get a demo license from Cisco by working with your sales engineer. Before you head over there you will need the License Key from the FirePOWER Management Center since that’s where…

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Cisco FirePOWER Management Center AD Integration v6

Cisco FirePOWER Management Center AD Integration v6

You have FirePOWER Management Center all fired up and configured and you are getting lots of information but rather then seeing what user is doing what, you are just getting source computer IP addresses.  You can tie FirePOWER into Active Directory to report on actual users as well as being able to create policies based on AD users.  This lets you get much more granular with your approach. There are two ways to accomplish this, active authentication and passive authentication….

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Cisco FirePOWER Management Center v6 – Initial Installation

Cisco FirePOWER Management Center v6 – Initial Installation

This will review deploying the Cisco FirePOWER Management Center on ESXi.  The Management Center makes it possible to manage multiple FirePOWER devices from a central server, allowing you to scale up more efficiently. Before we get started, a few prerequisites.  Make sure you have a VMware host (ESXi or ESX).  You will need capacity on this host for 8GB RAM, 4 vCPU’s and 250GB storage (thick provisioned) for the FirePOWER Management Center VM.  You can deploy this thin provisioned if…

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