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    <title>SNMP Version 1 and Version 2c </title>
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<a name="wp1351763"> </a><h1 class="pTitle">
SNMP Version 1 and Version 2c

</h1>
<a name="wp1351764"> </a><p class="pBody">
SNMP Version 1 (SNMPv1) and SNMP Version 2c (SNMPv2c) use a community string match for user 
authentication. Community strings provided a weak form of access control in earlier versions of SNMP. 
SNMPv3 provides much improved access control using strong authentication and should be preferred 
over SNMPv1 and SNMPv2c wherever it is supported. 

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<hr /><br><p class="pBody">Copyright 2010-2013, Cisco Systems, Inc. All rights reserved.</p> 

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