Reloading IOS Config at CLI for Dynamips/​Dynagen

David Sudjiman show us how to save and reload Cisco IOS con­fig­ur­a­tions from the com­mand line in Dynamips /​ Dynagen.

Dynamips, Dynagen, GNS3 0.7, IOS15.0 and Snow Leopard OSX

It works.

Install GNS3 on Mac OSX Leopard

This post looks at installing GNS3 on Snow Leopard and has a num­ber of screen­shots and some tips on mak­ing it go well.

Dynamips: Snow Leopard Works Well.

Dynamips on Snow Leopard — work­ing OK.

Caring for Your Dynamips Install — Deleting Unwanted Files

Dynamips and dyna­gen are well behaved pro­grams most of the time. Occasionally I am con­fig­ur­ing a fea­ture or two that causes IOS to crash (most recently I was con­fig­ur­ing MPLS and redis­tri­bu­tion on c2600 IOS which got really busted).

Then I noticed that my hard drive didn’t have a lot of free space.…

iTerm and Dynamips — Write to All Terminals at Once

I am often find myself need­ing to stop, make a con­fig­ur­a­tion change to Dynagen, and then restart. To make sure I don’t miss any­thing I go to every screen and write the configuration.

In iTerm, there is the abil­ity to send the same com­mand to all screens at once, excellent!

Suspending and Resuming Dynamips

As someone who travels often, and always look­ing to make use of the travel time, I was pleased to find that I can sus­pend and resume the Dynamips routers. This saves me bat­tery on longer trips, or lets me have more CPU when I run­ning other applic­a­tions such as Parallels /​ VMware to give me some Microsoft Visio joy. iTerm ses­sions are not ter­min­ated by doing this, they just don’t show any data until you resume the sessions.

Dynamips and the Leopard Terminal

I wanted Dynamips to act more like the way I think and it keeps on open­ing mul­tiple ter­minal win­dows but I like to use iTerm.

Configuring iTerm for Dynamips

To get star­ted with my lab faster I use iTerm to pre­pare a full set of pos­sible ses­sions. This post walks through how to do this which should help you to get star­ted faster. Also some key­board shortcuts.

Unzip Cisco IOS Images for Dynamips

I have a dir­ect­ory ‘dyn­alab’ in my ‘Documents’ where I have put ALL my Dynamips /​ Dynagen related files. I cre­ated a dir­ect­ory there which has all my IOS images, this makes more sense to my mind. Makes it easier to backup.

Tips for Dynamips /​ Dynagen on Leopard OS X

Tips for Dynamips /​ Dynagen on Leopard OS X

Dynamips on a MacBook Pro

I am doing some proof of concept for an MPLS data centre and did some­thing I have not nor­mally done. I used my MacBook Pro to run Dynamips /​​ Dynagen. I am very pleased with 9 3640 routers run­ning Enterprise Plus, and 2 2611 Routers with IP and run­ning less than 60% CPU across both cores

This means that I have still have […]