...and can forward traffic with minimal user intervention. In-band monitoring of the switch through the built-in CiscoDevice Manager Web-based tool. In-band management access through up to 16 simultaneous Telnet connections for multiple...
http://www.redbooks.ibm.com/abstracts/tips0751.html
...set Read-Only and Read-Write SNMP passwords on a Ciscodevice: NSAi-Cisco(config)#snmp-server community...and disables the Read-Write SNMP functionality on a Ciscodevice: NSAi-Cisco(config)#snmp-server community...
http://www.nsai.net/White_Paper-Securing_Cisco_Routers.pdf