How can I determine what feature set is running on a Cat4506 with a really old IOS version? In newer versions it's easy to find by looking at the filename, but I'm on cat4000-is-mz.121-12c.EW1.bin. As far as I can tell, there is no difference between the filenames for "BASIC L3" and "ENHANCED L3" images on this version.
I'm asking because we're about to upgrade, and I want to get the right version.
Output from "sh ver":
Cisco Internetwork Operating System Software
IOS (tm) Catalyst 4000 L3 Switch Software (cat4000-IS-M), Version 12.1(12c)EW1, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
TAC Support: http://www.cisco.com/tac
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Thu 24-Oct-02 23:05 by eaarmas
Image text-base: 0x00000000, data-base: 0x00CA7368
Dagobah Revision 63, Swamp Revision 24
<name removed> uptime is 3 years, 9 weeks, 4 days, 3 hours, 30 minutes
System returned to ROM by power-on
System restarted at 12:59:33 MET Wed Jan 10 2007
System image file is "bootflash:cat4000-is-mz.121-12c.EW1.bin"
cisco WS-C4506 (XPC8245) processor (revision 5) with 524288K bytes of memory.
Processor board ID FOX07021E49
Last reset from PowerUp
44 Gigabit Ethernet/IEEE 802.3 interface(s)
403K bytes of non-volatile configuration memory.
Configuration register is 0x2102