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Community Member

Upgrade 4506 switch to enable WCCP

Hi, we have a Cisco 4506 switch that is running IOS 12.2(20)EWA3. We are wanting to enable WCCP to use transparent proxying however I need to upgrade the IOS to support this feature. Going through the Software Advisor the latest it is telling me I can go to is 12.2(25). I guess I have several questions:

1) What version/build do I need to go to to enable WCCP? From what I can see it is at least 12.2(31)

2) Our version of IOS appears to be an ED version and to get above build 25 I need to move to an SG version or something like that. Is this correct?

3) The software advisor is telling me I don't have enough boot flash memory to perform the upgrade. Below is a copy of my show hardware and show file systems commands:

Cisco Internetwork Operating System Software

IOS (tm) Catalyst 4000 L3 Switch Software (cat4000-I9S-M), Version 12.2(20)EWA3,


Technical Support:

Copyright (c) 1986-2005 by cisco Systems, Inc.

Compiled Wed 07-Sep-05 17:29 by kesnyder

Image text-base: 0x00000000, data-base: 0x012244CC

ROM: 12.2(20r)EW1

Dagobah Revision 226, Swamp Revision 34

QTC4506 uptime is 1 year, 6 weeks, 21 hours, 54 minutes

System returned to ROM by reload

System restarted at 08:23:26 aest Sat May 12 2007

System image file is "bootflash:"

cisco WS-C4506 (MPC8245) processor (revision 4) with 524288K bytes of memory.

Processor board ID FOX1013037X

MPC8245 CPU at 400Mhz, Supervisor V

Last reset from Reload

3 Virtual Ethernet/IEEE 802.3 interface(s)

146 Gigabit Ethernet/IEEE 802.3 interface(s)

511K bytes of non-volatile configuration memory.

Configuration register is 0x2101

Hall of Fame Super Bronze

Re: Upgrade 4506 switch to enable WCCP

I don't see the amount of space you have in the file system, can you post the output from typing "dir /all" ?

Edit: BTW, all the IOS images old and new in the 4500 line are the same size and require the same memory. You need to make space for the new IOS image by deleting your current IOS image before copying the new one.

If you have more than 128MB in your flash, then you can have both IOS images at the same time but it's not necessary to have both.




Community Member

Re: Upgrade 4506 switch to enable WCCP

Thanks for your response. Below is the output of dir /all. It looks like there are two images on there already with the older one being used. And it appears the size of flash is 64MB.

Directory of bootflash:/

1 -rwx 12495228 Feb 24 2006 07:38:40 +10:00 [cat4000-i9s-mz.122-25.EWA


2 -rwx 12468084 Jun 22 2006 09:59:42 +10:00 cat4000-i9s-mz.122-20.EWA3


59244544 bytes total (34280976 bytes free)


Re: Upgrade 4506 switch to enable WCCP

There is more than enough room in bootflash to add another image , or if you want to you can get rid of the one you are not using by using the "delete bootflash:" command .

seeing the images are less than 13 meg and you have 34 meg free you have plenty of room .

Community Member

Re: Upgrade 4506 switch to enable WCCP

Thanks for that. So how does this work? Do you configure the switch to boot off the new image, and if it fails then it can revert back to the old one, or is it a manual process to revert back?

Also, is 12.2(31) the version I should use to enable WCCP? Thanks

Hall of Fame Super Bronze

Re: Upgrade 4506 switch to enable WCCP

You configure the switch to boot off the new image with the boot system bootflash: command.

If you fail to supply this command, the IOS will select the first valid image from the file system.

It seems you have 2 images but one of the images is enclosed with "[]" which makes in an invalid file name on that search therefore it defaults to the second image in the list.

For WCCP, you need 12.2(31)SG as described in the Release Notes




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