Category «Cisco»

Cisco

Upgrade Firmware on Cisco SGE2000\SFE2010 Switch

This article explains how to upgrade the firmware on a Cisco SGE or SFE 2000 series switch. The firmware files are uploaded using TFTP so you will need to have this installed on whatever computer you are using to update from (i.e. your PC). Download Firmware Update and Copy to TFTP The current release for …

Update ADSL firmware on Cisco 877

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 …

Port Forwarding on a Cisco ASA or PIX

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 …

Backup Cisco Config via Putty

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 …

Allow Remote SSH access to ASA running 8.4

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 …

Setup Cisco Wireless Controller and Cisco Aironets

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, …

Cisco Useful Commands

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 …

Setup Cisco WAP200e in bridge mode

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

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 …

Cisco IKE Version 2 Site-to-site VPN using PSK

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 …