User's Manual

Device Management
SNMP
Cisco ISA500 Series Integrated Security Appliance Administrator Guide 292
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• Web Server SSL Certificate: Choose the certificate to authenticate the
users who try to access the Configuration Utility through the web browser
by using HTTPS. By default, the web authentication server uses the default
certificate for authentication. If you choose an imported certificate for
authentication, the web authentication server restarts to load the selected
certificate.
STEP 3 Click Save to apply your settings.
SNMP
Simple Network Management Protocol (SNMP) is a network protocol used over
User Datagram Protocol (UPD) that lets you monitor and manage the security
appliance from a SNMP manager. SNMP provides a remote means to monitor and
control the network devices, and to manage the configurations, statistics
collection, performance, and security.
STEP 1 Click Device Management -> SNMP.
The SNMP window opens.
STEP 2 Click On to enable SNMP, or click Off to disable SNMP. By default, SNMP is
disabled.
STEP 3 If you enable SNMP, specify the SNMP version. By default, SNMP V1&V2 is
selected.
• SNMP V1&V2: SNMP version 1 (SNMPv1) is the initial implementation of the
SNMP protocol. SNMPv1 is widely used and is the network management
protocol in the Internet community. SNMP version 2 (SNMPv2), revises
version 1 and includes improvements in the areas of performance, security,
confidentiality, and manager-to-manager communications.
• SNMP V3: SNMPv3 is defined by RFC 3411–RFC 3418. SNMPv3 primarily
adds security and remote configuration enhancements to SNMP. SNMPv3
provides important security features:
- Confidentiality: Encryption of packets to prevent snooping by an
unauthorized source.
- Integrity: Message integrity to ensure that a packet has not been
tampered with in transit.