Yesterday I received my new CCNP books from Cisco Press. Surprisingly the price was not that bad what I got. All three courses, 642- 902, 813 and the 832. I opt for Certs Kits for each as well.
The complete course was around $250 which includes the “Official Certification Guides” , Cert Kits and shipping.
The Cert Kits includes a Quick Reference booklets, flash cards (found online) and a DVD. Each DVD in the same familiar format as the the Video Mentor series is, each with an introduction and roughly 5 to 6 hours of video, each covering the the material talk about in the Certification Guides.
This is makes this series stand out is that the Cert Kits complement the Cert Guides. I would recommend that you buy them both. While scanning through the new material I notice that this time Cisco is really pushing hard on the routing and switching. They have left a lot of the VOiP and security out, which was found in the ONT (642-845) and ISCW (642-825) tracks.
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Just received our first Juniper router, a J2300; this will be added to our lab along with the Extreme Summit and the rest of Cisco gear. At first glance the J2300 looks like any other device that will fit a 19in rack. The first thing I had to do was pop the top off and see what made this tick. As you can see from the following picture there not a whole lot in here. The box appears rather empty, I did 
notice a beefy processor and a standard compact flash.
The power supply is 250watt, not much going on here, than again you really don’t much to drive this thing.
root@J2300> show version
Hostname: J2300
Model: j2300
JUNOS Software Release [7.1R1.3] (Export edition)
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Network Address Translation, sometimes called Network Address Translator (NAT), was originally outlined in RFC 1631 in 1994. This was to allow devices on the inside network the use of private IP addresses that are presently defined in RFC 1918. NAT makes it possible to have a very big internal network with thousands of local addresses represented by a handful of global addresses or possibly a single global address.
We will setup a basic static and dynamic NAT configuration.
To the left we have a basic example of how NAT operates. Starting from the bottom we have our …
- Inside Local Addresses
- Outside Local Address
- Inside Global Address
- Outside Global Address
Our ISP has given us the following IP range. 189.45.23.56/29, looking at this subnet we can tell that our network starts on the 8th subnet range and this will give us 6 useable addresses
(For simplicity we will not be using subnet-zero)
- Network ID: 189.45.23.56
- First usable address: 189.45.23.57
- Last usable address: 189.45.23.63
- Broadcast address: 189.45.23.64
- Netmask of: 255.255.255.248
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The Cert Kits includes a Quick Reference booklets, flash cards (found online) and a DVD. Each DVD in the same familiar format as the the Video Mentor series is, each with an introduction and roughly 5 to 6 hours of video, each covering the the material talk about in the Certification Guides.
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