This article explains how to update the ADSL firmware on a Cisco 877. Download File and Put on TFTP server You will need to download the latest firmware – you can do this from the Cisco website (if you have a smartnet contract) or you can download from http://www.alcatron.net/cisco877/firmware/. The version I have downloaded is [...]
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The below example shows how to open up a Cisco PIX or ASA firewall to allow direct connections to a server on the inside network. In general you need a NAT and access rule to make this work. This is known as adding a static NAT rule or “port forwarding”. ASA Version 8.3 In the [...]
This article explains how to take a backup of a Cisco device using the putty terminal emulation program. You can download putty from here Open putty as administrator. Connect a console cable to your PC and connect via Putty to the Cisco device. Make sure you enable session logging (this output is sent to a [...]
This article explains how to setup remote SSH access to an ASA running Cisco IOS 8.4. In the latest version of Ciscos ASA software (8.4) SSH access must be authenticated using AAA. It is assumed you have already create the necessary user account. Method One – Via ADSM Add the remote IP address Then enable [...]
This article is a quick overview of setting up a Cisco Wireless LAN Controller (WLC 2100) with various Cisco Aironet access points. The Cisco Aironets are the lightweight version. They are configured as shown below: Configure the WLC via using the initial setup wizard Connect a console cable to the WLC and using hyper terminal/putty, [...]
General Find mac/ip address and the ports they connect to Sh mac-address-table Backup cisco config via FTP copy running-config ftp://<username>:<password>@<ftp server>/<filename> Set time server Ntp server time.windows.com Encrypt passwords service password-encryption [...]
In this example I am setting up a Cisco WAP200e to link 2 separate wired network – i.e. acting as a bridge. The setup is as shown below. Pre-requisites I would recommend upgrading to the latest firmware. You can download this from Cisco.com Both networks need to be on the same subnet (as the [...]
Cisco ASA IKEv2 PKI Site-Site VPN Hi For the last couple of weeks I’ve been trying to get a IKEv2 site-to-site VPN working between a 2921 running 15.13T and an ASA running 8.4.1. After spending long into the night tearing my hair out, I’ve found out that it’s not working due to a [...]
With ASA 8.4 coming out last week and supporting the long awaited IKEv2 I thought that I would knock up a quick VPN using pre-shared-keys This is a very basic setup shown below. Each router has a default route to the local ASA. Each ASA had a default route to the opposing ASA. Below are [...]
Something to be wary of when using a virtualisation server such as ESX, ESXi, HyperV, Xen Server etc. You may see the errors: Access denied to one or more connecting devices on this port, or This port is blocked by Spanning Tree Protocol Problem By default the Cisco Catalyst Express uses smartports [...]