April 26, 2018

Author: Kelvin

CCIE Security v5 :: ICMP Redirects

Today I wanted to share my CCIE Security notes on ICMP redirect messages. ICMP Redirection is used to notify hosts that a better route is available for packets destined for a specific destination. This feature is available and enabled by default on all Cisco IOS releases but it is worth mentioning that there may be […]

Cisco :: Configure ASAv To Use Virtual Serial Ports

In this article, I will demonstrate how to configure the ASAv so that you use a virtual serial port. This article assumes that you have installed the virtual Cisco Adaptive Security Appliance using VMware workstation or it’s equivalent and that you can only access the ASAv CLI via the VMware client. By default, the virtual serial […]

Cisco :: aNCE Graduate Program Q&A

Following on from my previous post: https://blog.synack.co.uk/2017/12/13/cisco-ance-graduate-program-qa-coming-soon/ I would like to share my Q&A session with you. Thank you to all those that sent in your questions, I hope that I’ve been able to answer them for you. Please like, share and feel free to comment should you have any more questions.  

Cisco :: aNCE Graduate Program Q&A Coming Soon

Over the past few months, I have received many questions related to the Cisco Associate Network Consulting Engineer (aNCE) Program. This has come as a result of some of my previous blog posts related to the program; https://blog.synack.co.uk/2016/12/05/cisco-ance-program-stage-1/  https://blog.synack.co.uk/2016/12/06/cisco-ance-program-stage-2/ https://blog.synack.co.uk/2016/12/21/cisco-ance-program-assessment-center/ I am overwhelmed by the comments and questions received, nearly one year on and would like to take […]

Cisco :: FXOS Authentication Using TACACS

In this article, I will describe how to enable authentication and authorization for Firepower eXtensible Operating System (FXOS) devices. The use case presented in this document illustrates how Cisco Identity Services Engine (ISE) can be utilised with attribute-value pairs (AV-Pairs) to authenticate and authorize users accessing the Firepower Chassis Manager (FCM) or FXOS platforms via […]

Cisco ASA :: Verifying ICMP Reachability on the ASA

If you’re a firewall engineer or work closely with the Cisco ASA then no doubt you will often find yourself troubleshooting and verifying reachability of packets on a network. One great feature that the ASA has to test reachability is the ‘packet-tracer’ command which when given an input will provide you with a very handy […]

Cisco NFV :: Adding Devices to Cisco Cloud Services Platform

In this article, we will take a look at how we run a new service on the Cisco Cloud Sevices Platform (CSP). A ”service” on the CSP is basically a virtual machine that is run on top of the CSP platform, you can find more information about the CSP here: https://www.cisco.com/c/en/us/products/switches/cloud-services-platform-2100/index.html  Note: This post assumes that […]

Cisco ASA :: Object NAT

In this video demonstration, we take a look at Object NAT and how it can be used to map hosts statically.    

Cisco ISE :: Reset Expired Admin Password

In this video demonstration, I show you how to reset your administrator password after it has expired.    

Cisco ISE :: Reset Administrator Password Due to Lockout

In this video demonstration, I’ll show you how to reset your administrator password on a standalone Cisco Identity Services Engine. This method is used if you have forgotten your administrator password. Note: A reboot is required in order to complete the following procedure.   
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