I was going to enable IP SLA feature in my 2921 router. It's running IOS 15.1. However, I couldn't find SLA number options.
Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.1(4)M1, REL EASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2011 by Cisco Systems, Inc.
Compiled Tue 14-Jun-11 19:25 by prod_rel_team
ROM: System Bootstrap, Version 15.0(1r)M12, RELEASE SOFTWARE (fc1)
Router uptime is 29 weeks, 21 hours, 38 minutes
System returned to ROM by power-on
System restarted at 14:30:14 HKT Thu Mar 21 2013
System image file is "flash0:c2900-universalk9-mz.SPA.151-4.M1.bin"
Router(config)#ip sla ?
key-chain Use MD5 Authentication for IP SLAs Control Messages
responder Enable IP SLAs Responder
server IPPM server configuration
Is it a bug?