After 2 week joining Motorola, I need to get my self to learn more about communication and voice related knowledge. I come across a news from China’s IT laboratory
In recent days, Cisco Study Group of Experts for the Cisco Certified Voice Professional (CCVP) released a new test plan. CCVP: Cisco Unified Call Manager and CCVP: Cisco Unified Communications Manager. Originally a simple two divided CCVP section, CCVP: Cisco Unified CallManager and CCVP: Cisco Unified Communications Manager, candidates can choose according to one of their own test cases.
The 2 part of CCVP certification requires candidates to participate in five examinations, three of which are compulsory in both directions, (more…)
I am graduate as an Information System Engineer, which suppose to be a programmer at the moment, but I am not, because I was easily bored with those programming language. In the other way, I am very interest on those short command line, such as ms-dos command line.
Ciscopedia , which is a dictionary that have the collection of cisco command line. This Cisco Pedia contain where, when, why, and how to use the cisco commands. Most of the new Network engineer, or begineer who like to learn Cisco Networking Commands must keep this as their weapon especially those CCNA, CCNP, CCIE holder.
In CiscoPedia, the content in this software are very informative, it will shows the command, the mode, the syntax, syntax description, command description, examples, misconceptions, and also related command, the most I like will be the examples, because for new network engineer who without much experience, can actually more understanding with the example provide.
While a network administrator forgot the password over the cisco router or switch, you need to reset password for cisco router or recover password for cisco router, this is a common mistaken for a Network Administrator, always forgot the password if long time did not do configuration for the cisco router. how to reset cisco router password? if you forgot the password to login cisco router?
Router>enable
Password:
Password:
Password:
% Bad secrets
Router>show version
Cisco IOS Software, 2800 Software (C2800NM-ADVIPSERVICESK9-M), Version 12.4(15)T1, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2007 by Cisco Systems, Inc.
Compiled Wed 18-Jul-07 06:21 by pt_rel_team
ROM: System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)
Copyright (c) 2000 by cisco Systems, Inc.
System returned to ROM by power-on
System image file is “c2800nm-advipservicesk9-mz.124-15.T1.bin”
This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.
A summary of U.S. laws governing Cisco cryptographic products may be found at:
If you require further assistance please contact us by sending email to
export@cisco.com.
cisco 2811 (MPC860) processor (revision 0×200) with 60416K/5120K bytes of memory
Processor board ID JAD05190MTZ (4292891495)
M860 processor: part number 0, mask 49
2 FastEthernet/IEEE 802.3 interface(s)
239K bytes of NVRAM.
62720K bytes of processor board System flash (Read/Write)
Configuration register is 0×2102
Router>
Just remember the current cisco router register number “2102“, after that, on and off your cisco router, press crtl + backspace + break to enter the NVram(more…)
How to calculate Subnet mask, Calculate Variable Length Subnet Mask (VLSM)
Few week back I face one confusion when one of our client require to increase their company computer from 200 to 1000′s PC, in the near future. They require to change the subnet mask in all their computer, server, and manageable switch. The client currently are using 255.255.255.0 for their subnet mask, and require to change it to 255.255.252.0. I have to assist them to change the setting in their 3Com manageable switches. I was confuse, why set to 252 instead of 255?
After Re-attend my CCNA class, CCNA in Penang, I understand how this work and also get the method on how to calculate subnet mask.
Normally for class C IP address, we will put the subnet mask as 255.255.255.0, but some other case, they are putting 255.255.255.128, 255.255.255.192, 255.255.255.224…. So when will use 128 or 192 or 225…. as your subnet mask?
For example, We use 128 (255.255.255.128), when we require not more then 126′s PC in the network.
After watch the Packet Tracer video tutorial about “What If” and “Visualization” on Packet Tracer Video Tutorial Part 1; also “Troubleshooting on Packet Tracer” and “Using Packet Tracer in Presentation” on Packet Tracer VIdeo Tutorial Part 2, this Part 3 video tutorial and also the last 2 tutorial on packet tracer that I am going to show you on:
Video Tutorial 5 - Guiding Student Configurations
At this chapter, the video tutorial guide the Cisco trainer/instructor to disable the physical and configuration tab (automatic mode), and only allow the student to use the command line to configure the cisco router in the cisco simulation software.
To disable this 2 tab (physical and configuration), just simply go to Option -> Preferences, go to Hide tab, tick the function you would like to hide, and also can go to administrative tab to key in password , and enable it, the password is to protect packet tracer software being changes by the student.
Video Tutorial 6 - Configuration Portability
This is the last packet tracer video tutorial that I going to shows, in this chapter, shows how we copy the real cisco product command line, and apply all this command over packet tracer by just copy and paste, or vice versa. Meaning that after you success configure the simulation router over the packet tracer, you are able to “show run”, copy down all the command line, and paste it into the real router without typing all the command over again.
This make me remember during I follow my senior over client side to configure cisco product, my senior use to have a pen drive (more…)
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Ciscopedia , which is a dictionary that have the collection of cisco command line. This Cisco Pedia contain where, when, why, and how to use the cisco commands. Most of the new Network engineer, or begineer who like to learn Cisco Networking Commands must keep this as their weapon 
especially those CCNA, CCNP, CCIE holder.
Few week back I face one confusion when one of our client require to increase their company computer from 200 to 1000′s PC, in the near future. They require to change the subnet mask in all their computer, server, and manageable switch. The client currently are using 255.255.255.0 for their subnet mask, and require to change it to 255.255.252.0. I have to assist them to change the setting in their 3Com manageable switches. I was confuse, why set to 252 instead of 255?
My name is Calvyn, from PENANG, an IT Engineer, Malaysia LIFE tech blogger. I am an IT Engineer who blog about my LIFE working Experience, such as Technology, Computing, Networking and also my hobbies, Photography.