Cisco 2600 IOS upgrade

[tony-payne]

I have a 2611 which I would like to upgrade so that I can use it for VLAN trunking - Here is the sho ver response:

Cisco-2611>sho ver
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-IS-M), Version 12.0(17a), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Mon 11-Feb-02 03:01 by kellythw
Image text-base: 0x80008088, data-base: 0x808F8C8C

ROM: System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)

Cisco-2611 uptime is 40 minutes
System restarted by power-on
System image file is "flash:c2600-is-mz.120-17a.bin"

cisco 2611 (MPC860) processor (revision 0x203) with 34816K/6144K bytes of memory.
Processor board ID JAD05240H87 (3259154391)
M860 processor: part number 0, mask 49
Bridging software.
X.25 software, Version 3.0.0.
2 Ethernet/IEEE 802.3 interface(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102

Firstly, there seems to be a multitude of IOS out there but I am unsure what i need to achieve my aim (maybe IP plus but I don't have enough memory?). Secondly, I have been able to download Switch IOS but not Router IOS (it says I need a valid Contract or something to that effect) does this mean I have to stick with what I have. Is anybody able to give me advice on IOS upgrading and understanding the IOS naming structure or point to some on line documents please?

[Richard Burts · Accepted solution]

Tony

First lets deal with the easy part of your question. You want to know what release and what feature set of software for the 2600 will support trunking. You should be able to find that answer using the Cisco Feature Navigator (www.cisco.com/go/fn).

The less easy part of the question is finding an image that will support the trunking feature and will fit within the hardware resources of your router. I am not sure what the answer to this really is, and I think that you need to be prepared for the answer to turn out that there is not an image that fits within your hardware resources and gives the trunking functionality.

And the most difficult part of the answer is how to obtain the image (if you find that there is one that does fit). To be able to download IOS image files you need to have a valid maintenance contract. And it sounds like you do not have a valid maintenance contract.

HTH

Rick

[tony-payne]

Hi Rick,

Thanks for the reply.

I'll look at the web page you suggested. I didn't realise such a site existed.

I'm almost resigned to not being able to find an IOS image that will do the job and fit on my hardware. I purchased the unit before I investigated whether it was suitable or not (but it was only £5.00, so no loss really). I will still use it to study the other features that it does support.

What I don't understand about having to have a support contract, is why I can download some IOS, but not others. Also, as equipment gets older it will naturally end up with people like myself (at home, using it for learning purposes), who have bought the equipment legitimately, but have no support available.

Thanks for your help, I'll carry on looking around to see if there is anything I can do.

Tony.

[Richard Burts · Accepted solution]

Tony

I do not have a good explanation of why you can download some switch image files and not other router image files. In my experience download images of switch software enforces the same restrictions as downloading images for router software. Perhaps if you could give us some specifics of the switch software which you have been able to download we might find the ways in which it is different.

While the software on the 2600 is pretty old, it should still be a good machine to practice and learn many of the concepts of routing and should aid you in your studies.

There have been many discussions and many suggestions made about what to do about old routers and switches that are being used for study purposes. As far as I know Cisco has not made any announcements about providing updates of IOS for study purposes.

HTH

Rick

[tony-payne]

This is the switch IOS I have successfully downloaded:

c2950-i6q4l2-mz.121-22.EA14.bin

Maybe it's something to do with the age of the units?

[pompeychimes · Accepted solution]

This should help you out with the IOS naming structure http://packetlife.net/media/library/21/Cisco_IOS_Versions.pdf

To download IOS' you do indeed need an active service contract.

You should be able to create a trunked interface with the IOS you currently have.

James

[tony-payne]

Thanks James,

Not sure about VLAN Trunking on the router I have. I've had a look at the feature navigator web page that Rick mentioned and it isn't there as VLAN trunking. Would it be called something different? Sorry to be so basic, but this is a new environment for me.

The PDF is very good though.

Thanks again,

Tony.

[pompeychimes · Accepted solution]

Router on a stick is the friendly name. I doubt that would be in the FN though.

To determine if the router supports it just try and enable it...

!

config t

int xx

encapsulation dot1q 10

!

[tony-payne]

okay,

I've proved that it is not supported by doing what you suggested. the command 'encapsulation dot1q 10' (PS. What's the 10, is it the VLAN ID?) is not recognised, and it isn't in the list when I call it up using the question mark. I'll use the router as it is at the moment and probably end up looking into buying another router that supports the feature. Thanks for your help though.

[pompeychimes]

The FN calls it "IEEE 802.1Q VLAN Trunking"

[cadet alain · Accepted solution]

hi,

this command must be entered under a subinterface:

int f0/0

no sh

int f0/0.1

encap dot1q 10 where 10 is VLAN ID

Regards.

Alain.

[tony-payne]

Alain,

I just tried what you suggested and got this response:

Cisco-2611#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
Cisco-2611(config)#int eth0/0
Cisco-2611(config-if)#int eth 0/0.1              
Cisco-2611(config-subif)#encap dot1q 10
             
% Invalid input detected at '^' marker.

Cisco-2611(config-subif)#?
Interface configuration commands:
  arp            Set arp type (arpa, probe, snap) or timeout
  backup         Modify backup parameters
  bandwidth      Set bandwidth informational parameter
  bridge-group   Transparent bridging interface parameters
  carrier-delay  Specify delay for interface transitions
  cdp            CDP interface subcommands
  default        Set a command to its defaults
  delay          Specify interface throughput delay
  description    Interface specific description
  dspu           Down Stream PU
  encapsulation  Set encapsulation type for an interface
  exit           Exit from interface configuration mode
  fras           DLC Switch Interface Command
  ip             Interface Internet Protocol config commands
  llc2           LLC2 Interface Subcommands
  mtu            Set the interface Maximum Transmission Unit (MTU)
  netbios        Use a defined NETBIOS access list or enable name-caching
  no             Negate a command or set its defaults
  ntp            Configure NTP
  rate-limit     Rate Limit
  shutdown       Shutdown the selected interface

Cisco-2611(config-subif)#encapsulation ?
  sde  IEEE 802.10 Virtual LAN - Secure Data Exchange

After looking at the help file above "sde  IEEE 802.10 Virtual LAN - Secure Data Exchange" is the only encapsulation available. That's Ciscos own protocol isn't it? I've seen it in the Certification guide, I'll look it up.

Thanks for the advice

[tony-payne]

Sorry,

I was thinking of ISL when I asked if it was their own protocol!