Connect Firewall to FMC Through NAT Device

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Normally connecting a firewall to a Firepower Management Center server is a short, simple process. This is because a lot of use cases have the FMC and the FTD firewall on the same network....

ERROR: TRACER: NP failed tracing packet

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I recently implemented a couple of Cisco Firepower firewalls and have been using the packet-tracer feature to determine which NAT rules were being used for certain traffic for instance. Then, after troubleshooting an issue...

Firepower 4100/9300 – Reset to Factory Default

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I recently began working on a project with a Firepower 4100 chassis. When I powered on the appliance I quickly realized that the setup would be different than a normal Firepower device. The console...

Cisco Router IPSec VPN Tunnel Lab (with Video)

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This post will cover the creation of an IPSec tunnel between two Cisco routers. If you've ever done one of these on an ASA firewall for instance, you will notice right off the bat...
Remote-Firepower-Firewall-Example-Topology

Add Remote Firepower Firewall to Firepower Management Center

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*UPDATE** - See comments and now my own experience. This method is NOT working on FPR-1010 devices (and possibly 2000 and 4000 series as well). This was tested with 5506, 5508, and 5516 devices....
pmtu-d packet

PMTU-D Packet Greater Than Effective MTU

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Nothing special about this post, but I ran into an issue today and wanted to pass along the fix. I've noticed some of my posts that revolve around bug fixes are the most popular,...

Cisco NX-OS TACACS+ Setup Guide

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Quick post here, nothing much to it. This will be a straight forward guide to NX-OS TACACS+ Setup. TACACS+ was developed by Cisco as an extension to TACACS that fully encrypts each packet. This...