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How to upgrade IOS on Cisco Router 2801 ?

Hi friends !

I want to analysis actual bandwidth available to our Gateway Router to be assured that we are getting what we bought from our ISP.

Experts from the same experts-exchange community suggested me some tools and I found that most of them are based on NetFlow. Now, I want to I want to configure NetFlow on my Cisco Router 2801.

BUT...the present IOS on this router doesn't support NetFlow. The output of "Show Version" has this informatino about my router's IOS:
*******************************************Router's IOS information********************************************
Cisco IOS Software, 2801 Software (C2801-IPBASE-M), Version 12.4 (1c), RELEASE SOFTWARE (fc1)
ROM: System Bootstrap, Version 12.4 (13r)T, RELEASE SOFTWARE (fc1)
********************************************************************************************************************

Now, I want to upgrade Cisco IOS to the latest IOS supported by this Router 2801.

I don't have any CD. I know the method, though I have NEVER upgraded IOS before, but I know that we need some program (installed on a PC)  to backup the current IOS / NVRAM and then use the same program to provide the location of new IOS file, so that router takes new IOS from that file.

Please tell me:

1. How can I get the latest version of Cisco IOS for Router 2801 ?
2. How can I get the program to use to backup and restore the Router's configurations ?

Regards
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JatinHemant
Asked:
JatinHemant
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7 Solutions
 
hau_itCommented:
Hi there,

I am afraid that you have to pay in order to get the latest IOS. Unless you have some friend that have access to cisco.com, you must buy the new IOS

In order to save the current IOS and config file and also to upload your new IOS you need a TFTP server. It is an application and actually a small one. I mean you do not need a dedicated server to host the application.

The procedure is quite simple. But you must check before upgrade if you have enough Flash and Ram to host the new IOS.

http://www.dslreports.com/faq/9817 

In the link there is a guide. Please read it before proceed if this is your first time!!!

Good luck
Dimitris
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JatinHemantAuthor Commented:
Thanks for your reply.

I am going to explore the link. But please tell me, I have purchased the Cisco Router 2801 recently and it, by default, came with Version 12.4 (1c). Now I was thinking that the newer versions like 12.4(10), 12.4(10)T would be just minor upgrades (Just like Service Packs in Windows OS)

Would you please tell me whether I should go on Cisco.com to see those IOS and if they ask me for payment or not ?

Regards.
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hau_itCommented:
When you are looking for IOS it is not only the version but the features that they support.
There ipbase, advanced IP services, Security IOS etc.

In the cisco.com there is the IOS advisor that asks you about the features that you are looking and suggests you the correct IOS
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nodiscoCommented:
You don't "need" the latest version persay - whats more important is the capability of the actual ios image.  There are several different release of each image - e.g. and IP services, Advanced IP, Advanced Enterprise services etc.  All of them have different capabilities.

You need one of these if you require your router to do certain tasks - e.g. support IPSEC, nhrp etc  etc.  If your router is not accepting certain commands you wish to use, its because the IOS you have doesn't support them.

If the release you have supports everything you want to do, then there is no massive need to upgrade - but if you check on the release notes of your version and the versions above, it will tell you your current capabilities and more importantly the fixed bugs in the later ones.  Often these can be very obscure bugs that will not affect you.  If you need to download an IOS - you will need a Cisco CCO account - you can get one of these by having smartnet support or contacting a Cisco reseller.

cheers
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nodiscoCommented:
haha - late refresh!
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JatinHemantAuthor Commented:
Thanks for your comments.

You see, I just want to analyze actual bandwidth available to us by our ISP. Because we purchased 3 Mbps / 1Mbps from our ISP. They claim that they are providing the committed bandwidth but I suspect on their claim because our Internet speed is very very slow (Even if I connect only a single PC)

For this I installed SolarWInds NetFlow Configurator (To fetch the configurations from Router) and SolarWind's Real-time NetFlow Analyzer (To analyze the fetched configurations and real-time traffic).

The PC where I installed these tool and the Router are in the same subnet and I can ping and telnet to router. I also setup these:

snmp-server community string public RO
snmp-server community string private RW

BUT...when I try to connect, I get an error. (Please see the attached snap shot)

Now, it says that my Cisco IOS doesn't support NetFlow.

Please tell me...

1. Is NetFlow a very new technology that was introduced later than this IOS ?
2. Is there any alternate solution to check the bandwidth available ? What about the older routers with old IOS, how network bandwidth is assured on them when they don't support NetFlow ? (or Will I have to PURCHASE and UPGRADE to newer IOS mentioned in the error message ?

Waiting for your valuable replies

Regards.
SolarwindNetFlowMessage.JPG
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nodiscoCommented:
Hi

1) Netflow is a couple of years old but as suspected, its your IP-BASE image that is not letting you run it.  Here is the IOS history regarding Netflow support -
http://www.cisco.com/en/US/docs/ios/fnetflow/configuration/guide/fnetflow_feat_rdmap_ps6441_TSD_Products_Configuration_Guide_Chapter.html

So it looks like you will need to upgrade if you want to use Solarwinds - and considering how good Solarwinds is, I would recommend it!

2) For simply checking the bandwidth that you are getting from the ISP - you could just use one of the many "Download speed tests" online.  Make sure you pick one in your own country and if possible, on your own ISP.  It will indicate your upload download speed - usually in bits/second.  
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JatinHemantAuthor Commented:
Thanks for your reply.

(1) ***and considering how good Solarwinds is, I would recommend it!***

Mean you also consider SolarWinds as a good Network Analyzer. Am I right ?


(2) Download speed tests...

I don't know what is that ? How to use them ? and are they reliable ?

Regards.
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nodiscoCommented:
Yes - I quite like Solarwinds, it has a lot of good features.  Orion, Cirrus, etc Engineers toolkit if you can afford it!
We use it for netflow, device monitoring and so forth

Just do a google search on download speed test

http://www.telecom.co.nz/speedtest

This is one from a New Zealand ISP - it rates your upload/download speed.  Make sure you choose one from your own country and if you can, your own isp - otherwise the speed listed will not be essentially accurate as you will take into account hops between several providers/countries
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JatinHemantAuthor Commented:
Thanks for your instant reply.

Well...let me google for "download speed test". So, it means I am unfortunate here, because SolarWinds is good but can be configured only when IOS support NetFlow and my IOS doesn't support NetFlow

Regards.
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nodiscoCommented:
I would investigate getting yourself smartnet support from Cisco or just contacting a local reseller to see how you can organize getting yourself a Cisco CCO account so you can download IOS images.  If you work any way regularly with this equipment, the CCO is invaluable.
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JatinHemantAuthor Commented:
Thanks for your support. Let me also see how can I get access to Cisco IOS.

Regard.
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Istvan KalmarCommented:
Better way, to buy shared support, it is cheaper, than smartnet!
Contact your Cisco system Integrator, the able to solve your problem, and supporting you for a year!
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