cisco self study cisco books: Jun 15, 2008

Current cisco cse News

• RPIOS: Provides the Cisco IOS Software sub-package, which is where Cisco IOS Software features are stored and run; each software release has a different RPIOS sub-package

An excerpt from my ‘Layer 2 Security’ notes

Wed, 21 May 2008 18:34:23 +0000
Layer 2 Security – “Use either Dynamic ARP Inspection (DAI) or private VLANs to prevent frame sniffing”

Introduction to DAI:
- DAI prevents man-in-the middle attacks that misuse IP ARP (gratuitous ARPs)
- DAI checks at ingress only
- When DAI is enabled, all ports are untrusted by default, ports configured as being trusted bypass DAI checks
General Configuration (DHCP ...]

Up-to-Date Earning the Certs the Market Demands

Thu, 28 Feb 2008 07:46:29 +0000
Certification is an excellent way to enhance your skills and employability, but although everyone wants to move ahead, many lack direction. Which certifications should be pursued to achieve the best return on your investment in time and money?
Microsoft Certified Systems Engineer (MCSE), Project Management Professional (PMP), Microsoft Certified Database Administrator (MCDBA), Cisco Certified Network Associate ...]

BGP Design and Implementation Chapter 1. Adv. BGP Intro.

Fri, 31 Aug 2007 04:20:05 +0000
I finished the 1st chapter of the BGP Design and Implementation book (Advanced BGP Introduction) and I must say that so far this book seems to be well written. Now I don’t want to jump the gun and say that it is written as well as a Doyle book, it is definitely not as bad ...]

old habit

Today I recalled my old habit in configuring the routers. And today as well, I am using that habit for my home lab
access.

What old habit did I have? Configuring the router using notepad and pasted it to the router. Is it a 'bad' habit
or a 'good' habit? I have no idea!

During my work at various clients (particularly in Australia), I must carry out the router configuraion that way.
Whay is that so? To save time! When a customer request a replacement or a new site setup, most of the time the router
is not yet arrived in the office. Thus, to save time, I configure the router based on my best knowledge on the IOS,
chasis, modules, etc. Then I drafted out the basic configuration for connectivity then build the config from that
point on using all 'imagination' in my head on whether this command would do good once pasted or it will wreck havoc
in the production later. To make things worst, 'usually', the router (or even switch) only transits my office area
for around 4 hours. Thus within that 4 hour, I must be able to configured it in the 'full config' and ship it to the
customer in the same day. I would be lucky to have the router arrived at 5pm, but that means I must ship it before
10am the next working day. That means only 2 hours instead of 4 hour 'transit'.

During that period, there was no such thing called dynamips or in-kind. I must really knock on my head in order to
realized whether the config would work or not (not should!).

As of today, I have a poor Internet connection to home's (dynamips) lab. So, to save time I drafted out the
config, verify it that it would (and should!) work and once I arrived home: pasted it and compared it against the
correct answer. I have a quick glimpse on some answers that I have no idea what it asked. More than 90% of the
question is quite clear for me. Only minor (or silly???) misunderstanding in those 10% that might dragged me down
during my next lab attempt.

In the last two days, I have used extensive full-blown dynagen management. It is a very nice tool and could have
been tweaked for more dynamips options. All-in-all, I already have some idea to develop my own dynamips management
console (I will tell you all later once I got my CCIE number, ok? ;) )

It turned out that my answer so far is able to reach fair amount of correctness (I have not really drill the
details, maybe tonight). I am surprised with the result (and happy of course!)

Now the rest remains in the day of the lab next Monday. I will do my best to pass this one this time and earn the
number that I deserve (and have been desperately waiting on).

IEWB-RS Volume I Version 5 Beta Frame Relay Labs Now Available

Sat, 31 May 2008 17:05:17 +0000
IEWB-RS Volume I Version 5 Frame Relay labs are now posted on the members site. Please post all questions and comments about it here.
Happy labbing!

Congratulations Brian Dennis - 5 Times CCIE!

Fri, 06 Jun 2008 11:28:21 +0000
Our congratulations goes out to Brian Dennis who just passed the Voice CCIE Lab Exam yesterday, making him one of very few in the elite group of engineers with FIVE CCIEs! Contact Brian directly to send him your congratulations!

Disable resume from MGCP shared line FXS port

Thu, 20 Jul 2006 00:51:44 +0000
This parameter determines if you can resume a call from hold on a MGCP FXS shared line.
Default value is true

It is with a heavy heart that we have come to the end of this beautiful composition on cisco cse. Please do disburse its beauty to others.
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