Network technologies and trends


August 13, 2009  8:56 AM

Configuring Multiple SSIDs in Cisco 1250 Access Points Series 2

Yasir Irfan Yasir Irfan Profile: Yasir Irfan

In order to configure multiple SSIDs in a Cisco Aironet 1250 Series Access Point, we will follow the following scenario,

 

The Scenario is based on following hardware and software versions.

 

Cisco Aironet 1250 Series Access Point runs with an IOS Version 12.4(10b) JDA3.

Cisco Catalyst 3560 Switch runs with an IOS version 12.2(44) SE1.

Cisco Catalyst 6500 Series Switch runs with an IOS version 12.2(18) SXF14.

 

The Cisco Aironet 1250 Series Access Point has three VLANs, – VLAN 100, VLAN 101 and VLAN 102. VLAN 100 will be the native VLAN, VLAN 101 for the ITKE admin department and VLAN 102 for the guest users. The Wireless users who belong to ITKE admin department must connect to the Cisco Aironet 1250 Series Access Point and should be able to connect the ITKE admin department users on the wired network which is VLAN 101.

 

The wireless guest users should be able to connect to the Internet Gateway or web server which is on the wired segment of VLAN 102.

A Cisco Catalyst 3560 Switch is connected to the Cisco Aironet 1250 Series Access Point at the access layer and the Cisco Catalyst 3560 Switch is also connected to the Cisco Catalyst 6500 Switch at the Core/Distribution layer). All VLANs are created in the Cisco Catalyst 6500 Switch which is beyond the scope of this document. (If any one feels he or she needs the sample configuration for the VLANs in the Cisco Catalyst 6500 switch it can be provided in the comments section of this blog entry).

 

A windows 2003 Server is used as a DHCP server which provides the IP address for both the VLANs VLAN 101 and VLAN 102. A DHCP scope has to be configured for both VLANS in the windows 2003 Server which is also beyond the scope of this document. But I am just adding the snap shot from the DHCP Server.

 

The following IP Address Scheme is applied for the VLANs

 

VLAN 100– 10.0.0.0 /23 (NATIVE VLAN)

VLAN 101 – 10.2.0.0/23

VLAN 102– 10.4.0.0/23

 

Following are the IP address used for the devices in this document.

 

·         The Cisco Aironet 1250 Series Access Point Bridge-Group Virtual Interface (BVI) IP Address (VLAN 100) 10.0.0.99.

 

·         Windows 2003 DHCP Server with an IP address 10.0.1.100 with VLAN scopes configured

 

·         Web Server with an IP Address 10.4.0.100.

 

·         Wireless Clients (SSID ITKE) gets connected to VLAN 101 gets an IP address from the Windows 2003 DHCP Server from the subnet 10.2.0.0.

 

·         Wireless Clients (SSID Guest) gets connected to VLAN 102 gets an IP Address from the Windows 2003 DHCP Server from the subnet 10.4.0.0.

In my next post I will post the configuration steps required to carry out the above motioned task. Until then do leave your comments for any future improvements or suggestions.

August 11, 2009  6:40 AM

Manage Engine releases Netflow Analyzer 7.5

Yasir Irfan Yasir Irfan Profile: Yasir Irfan

 

In one of my past posts, I mentioned about the Scrutinizer netflow analyzer, still I am testing some more netflow analyzers . Manage Engine recently released the latest version of its Manage Engine Netflow Analyzer 7.5.

 

So I though let me try the demo version of Manage Engine Netflow Analyzer 7.5, the new version features a customizable administrator dashboards allows an IT administrator to monitor the critical parts of the network infrastructure.

 

The new  Manage Engine Netflow Analyzer 7.5 ‘s Site-to-Site traffic monitoring capability helps businesses track network traffic patterns between separate physical locations, ensuring business-critical applications have the right amount of bandwidth allocated for maximum performance. This level of understanding is vital for the day-to-day performance of existing applications, as well as for planning infrastructure growth. It is also key to IT departments that chargeback business units for the volume of network traffic generated, and for service providers who bill customers based on volume and speed.

 

Some of the features of Manage Engine  Netflow Analyzer 7.5 are as follows

Network Bandwidth Monitoring

Bandwidth Reporting

Netflow Monitoring

Network Traffic Analysis

Site to site traffic monitoring

Application Performance Optimization

Network Security

Netflow Reporting

Automating Reports

Customizable Dashboard

 

 

The Manage Engine Netflow Analyzer 7.5 is worth trying the demo version for 30 days.  The good thing about the Manage Engine Netflow Analyzer 7.5 is the enhanced reporting tool, customizable dash board and ease to manage and install.


August 8, 2009  6:18 AM

Configuring Multiple SSIDs in Cisco 1250 Access Points Series 1

Yasir Irfan Yasir Irfan Profile: Yasir Irfan

 

Recently we purchased plenty of Cisco Aironet 1250 Series Access Points, unfortunately we don’t have any Wireless LAN controllers to manage the Cisco Aironet 1250 Series Access Points.  Previously we were using HP Procurve 503 and 420 access points with multiple SSIDs with different VLANS, which was quite simple and easy to manage.

Whereas with the Cisco Aironet 1250 Series Access Points, configuring multiple SSIDs was an uphill task. As there was no proper documentation or configuration scenarios available particularly for Cisco Aironet 1250 Series Access Points in the Cisco Web Site.   I did some research and  tried few things and finally managed to configure the Cisco Aironet 1250 Series Access Points, with multiple SSIDs. In my next post I will come up the scenario and sample configuration which can be used to create multiple SSIDs in a Cisco Aironet 1250 Series Access Point.


August 4, 2009  4:58 AM

Webinar “Guide to CCNA Wireless Certification” on 5th of August

Yasir Irfan Yasir Irfan Profile: Yasir Irfan

 

Cisco Press author Brandon Carroll is offering a CCNA Wireless Intro Webinar Aug of August 2009, the details of the Webinar is as follows, it’s good for the individuals who are aiming at CCNA Wireless Certification (IUWNE 640-721).

Topic:   Guide to CCNA Wireless Certification

Session dates:  

11:30 am, Pacific Daylight Time (San Francisco, GMT-07:00)

Duration:   30 minutes

 Presenters:   Ascolta 2

Description:   This webinar provides information on other resources recommended for CCNA Wireless study as well as a look at what one can expect if taking a self-study path, a self-study path with some practice using production equipment, or an instructor-led course with dedicated lab equipment.

Who Should Attend: Those beginning the CCNA Wireless or considering the CCNA Wireless Certification track would benefit from attending as well as those that want a look at the technical content in the IUWNE v1.0 course.

Instructor Name: Brandon Carroll

Host’s name:   Ascolta 2

Register now


August 1, 2009  6:19 AM

Chance to win a Flip Video Camcorder from Cisco!

Yasir Irfan Yasir Irfan Profile: Yasir Irfan

Starting 3rd of August, 2009, Cisco Systems is giving away 15 Flip Video Camcorders on twitter. The Flip Video Camcorders could be yours by following the three simple steps.


Watch!
Every business day for 3 weeks, Cisco will ask a different question from
http://www.twitter.com/DigitalCribs  about the new Digital Cribs webisodes featuring Paul Van Dyk, Graham Hill, and Martha Lane Fox. Watch the videos, tweet the answer to the daily question, and follow @DigitalCribs to find out if The Flip is yours!

Tweet!
To enter the contest, tweet the correct answer via @reply and include the hashtag #DigitalCribs.

Win!
Cisco will randomly choose one winner per day to win a new Flip VideoTM camcorder. Winners will be listed there and announced via our Twitter account, @DigitalCribs, every day before they post the next question.

 


July 27, 2009  11:26 AM

Cisco 2009 Midyear Security Report is out

Yasir Irfan Yasir Irfan Profile: Yasir Irfan

According to the Cisco 2009 Midyear Security Report , the Conficker worm is still active and affecting thousands of Systems daily.  Just to recap the Conficker worm began infecting the Systems in late 2008 and still an active worm.

Pic Courtesy:Cisco Systems

 

 Cisco Systems released the Cisco 2009 Midyear Security Report on 14th of July 2009 and the report highlights some of the most common technical and business strategies that Internet  criminals used to breach corporate networks compromise Web sites and steal personnel information.

The highlights of the Cisco 2009 Midyear Security Report is as follows

  • The Conficker worm, which began infecting computer systems late last year by exploiting a Windows operating system vulnerability, continues to spread. Several million computer systems were under Conficker’s control as of June 2009.
  • Online criminals are up on current events and making the most of them. After the outbreak of H1N1 influenza (“swine flu”) in April, cybercriminals quickly blanketed the Web with spam that advertised preventive drugs and linked to fake pharmacies. Cybercriminals will often seize on major news events to launch this type of attack.  While many spammers continue to operate with extremely high volumes, some are opting for lower-volume but more frequent attacks in an effort to remain under the radar.
  • President Barack Obama has made strengthening U.S. cybersecurity a high priority for his administration and looks to work with the international community and the private sector to leverage technology innovations to reduce cybercrime. This focus is expected to have a significant positive impact for the industry in the coming months. John N. Stewart, Cisco’s chief security officer and a contributor to the Center for Strategic and International Studies (CSIS) report for the Obama administration, provided additional insight in a recent blog and video blog post.

Continued »


July 27, 2009  5:55 AM

Reset Cisco 1250 Access Point to factory default settings

Yasir Irfan Yasir Irfan Profile: Yasir Irfan

 

If you want to reset the Cisco Aironet 1250 Access Point to factory default settings you have to use “Write erase or erase/all nvram” command, these commands resets the Cisco Aironet 1250 Access Point to factory default settings except the static IP Configured. This feature is really helpful if you reset the Cisco Aironet 1250 Access Point accidentally. Still you will have an option to access Cisco Aironet 1250 Access Point  using a web browser interface.

Mindful thinking from Cisco.

 

 


July 22, 2009  9:02 AM

Missed Cisco Live 2009? Get a virtual access to Cisco Live 2009

Yasir Irfan Yasir Irfan Profile: Yasir Irfan

 

Did you miss the much talked Cisco Live 2009? No worries Cisco Live Virtual is here, by registering you can have chance to access more than 200 technical training and educational sessions with a membership to Cisco Live Virtual. Browse the unique 3D virtual environment using full access and view more than a dozen complimentary sessions online now.

The Cisco Live Virtual is available in two flavors Cisco Live Virtual Pass: Free and Cisco Live Virtual Premier Pass:Full Access for $395 or 5 Cisco Learning Credits .

The Cisco Live Virtual Pass: Free provides you an access to on-demand technical training sessions, keynotes and Super Sessions in the auditorium as well as access to the Cisco customer community. Register for Cisco Live Virtual and see for yourself all that this community has to offer.

Whereas the Cisco Live Virtual Premier Pass: provides you an access to on-demand technical training sessions, keynotes and Super Sessions in the auditorium as well as access to the Cisco customer community. Register for Cisco Live Virtual and see for yourself all that this community has to offer.

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July 22, 2009  6:13 AM

Review for CCNA 640-802 Network Simulator

Yasir Irfan Yasir Irfan Profile: Yasir Irfan

 

If you are preparing for the CCNA 640-802 Certification exam and you are not willing to invest on hardware to setup you own lab, then the CCNA 640-802 Network Simulator released recently by Cisco Press  is the right Simulator for you.

The CCNA 640-802 Network Simulator  is a state of the art, interactive simulation software, which allows you to practice your networking skills with more than 250 labs, specifically designed strengthen CCNA and CCENT exam topics, including router and switch navigation and administration, LAN switching, IP addressing, routing, WANs, Spanning Tree Protocols,  VLANs and trunking, IP routing protocols, scaling IP, and troubleshooting.

 

The CCNA 640-802 Network Simulator will surely allow you to discover the realistic network device response as you work through each of the labs developed by the bestselling author and an expert instructor Wendell Odom.

 

 

  Continued »


July 21, 2009  7:58 AM

Support after sales Matters (Cisco Press Support is great)

Yasir Irfan Yasir Irfan Profile: Yasir Irfan

 

 Whenever we buy anything either it might be a small thing or huge buch of servers, we always think of support. Yes support matters a lot, especially after buying any piece of software, study guide or a simulator. When Cisco Press released the CCENT 640-822 Network Simulator, I purchased the Simulator to test and see what Cisco Press is offering in this simulator, which was amazing and in fact I wrote a review as well in my ITKE blog.

 

Recently Cisco Press released the CCNA 640-802 Network Simulator, when I purchased the CCENT 640-822 Network Simulator there was an offer , so I was entitled for a free upgrade of the CCNA 640-802 Network Simulator. When Cisco Press released the CCNA 640-802 Network Simulator I was thinking of upgrade but the CCENT 640-822 Network Simulator was corrupted in my laptop and I was not able to activate the product. Immediately I contacted the Cisco Press Support and my problem was solved in matter of hours, which was really amazing.

 

My past experience with other vendors was not as great as of Cisco Press Support. Which proved to be vital for the Certification aspirers, as time matters? Without proper support we can suffer a lot.


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