From IOS to Junos – Final Day

From IOS to Junos – Final Day – Part 4 (BGP)

This serious show clearly how tiredness cause simple mistakes :)

Some Troubleshooting

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Break the Network Emulators out of the Cloud

Cisco IOU and JunoSphere Recently both Cisco and Juniper have announced the availability of online resources to provide hands on training over the internet. They have built software emulators in the cloud that can be accessed remotely for a cost. These solutions are based purely around the certification programs and therefore are pretty rigid in the topology that are provided, not to mention the re-occurring cost. http://www.juniper.net/us/en/company/press-center/press-releases/2011/pr_2011_05_16-03_01.html https://learningnetworkstore.cisco.com/market/prod/listSubCatLearnLab.se.work?TRGT=85&/nxt/rcrs/=2559 Rack Rentals There are training providers such as Internetwork Expert (http://www.ine.com/) and IPexpert (http://www.ipexpert.com/) who provide rack rentals based on their training materials. These guy cannot possibly compete going forward. To keep these sustainable they will need to reduce the overhead of building physical racks, providing power and space for the racks. Using e

VMWARE ESXi 5.0 Command line quickies

Hi, It has been a long time since my last posts, but recently I have been working on my home ESXi lab so I thought I would share. I switched over to using Apple Mac just over a year ago, so I don't have a windows machine running by default to run the vSphere client software and generally all I want to do is startup VMs and switch off the ESXi server when I am done. I did some searching and found that I could use vmware vim-cmd if I SSHed into the ESXi server. This need to be enabled at the console, then you can use putty or your tool of choice to connect. Anyway there are several commands the following to me are most useful. List all Virtual Machines vim-cmd vmsvc/getallvms Get a Virtual Machines state (on/off etc) vim-cmd vmsvc/power.getstate Power on a virtual machine vim-cmd vmsvc/power.on Combining command to a one liner you can find out the power on state of all Virtual Machines vim-cmd vmsvc/getallvms && for x in `vim-cmd vmsvc/getallvms|

Where are all the AAA and PKI solutions gone for Dot1x

More Question than answers (This series will be based on an enterprise with >20,000 dot1x devices) I have been looking into dot1x authentication for Wired and Wireless devices based on device identity using x.509 Certificates. While I understand PKI, AAA, PEAP and sorts I had never really had the opertunity to bring these technologies together. I quickly found out that despite this stuff being around for years, it was difficult to answer the following questions: Which PKI solution should I use? Which AAA solution should I use? How to setup the PKI solution? Does the PKI server need to be part of AD? What if the clients are not in AD e.g. Wireless Tablets? How do I issue certificates for devices? How to configure the devices (wired and wireless)? What AAA server do I use? How do configure the rules and policies and identify clients? What are the answers? I am going to kick off a series here at networking-guru.net that tries to address the question above; I have l

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