Cisco Cisco Expressway Maintenance Manual
Field
Description
Usage tips
SNMP mode
Controls the level of SNMP support.
Disabled: no SNMP support.
SNMPv3 (secure SNMP): supports authentication and
encryption.
encryption.
SNMPv3 plus TMS support: secure SNMPv3 plus non-
secure access to OID 1.3.6.1.2.1.1.2.0 only.
secure access to OID 1.3.6.1.2.1.1.2.0 only.
SNMPv2c: non-secure community-based SNMP.
If you want to use secure SNMPv3 but
you also use Cisco TMS as your
external manager, you must select
SNMPv3 plus TMS support.
you also use Cisco TMS as your
external manager, you must select
SNMPv3 plus TMS support.
Community
name
name
The Expressway's SNMP community name. The default
is public.
is public.
Only applies to SNMPv2c and
SNMPv3 plus TMS support.
SNMPv3 plus TMS support.
System
contact
contact
The name of the person who can be contacted
regarding issues with the Expressway.
regarding issues with the Expressway.
The System contact and Location
are used for reference purposes by
administrators when following up on
queries.
are used for reference purposes by
administrators when following up on
queries.
Location
Specifies the physical location of the Expressway.
Username
The Expressway's SNMP username, used to identify
this SNMP agent to the SNMP manager.
this SNMP agent to the SNMP manager.
Only applies when using secure
SNMPv3.
SNMPv3.
v3 Authentication
settings (only applicable to SNMPv3)
Authentication
mode
mode
Enables or disables SNMPv3 authentication.
Type
The algorithm used to encrypt authentication
credentials.
credentials.
SHA: Secure Hash Algorithm.
MD5: Message-Digest algorithm 5.
Password
The password used to encrypt authentication
credentials.
credentials.
Must be at least 8 characters.
v3 Privacy
settings (only applicable to SNMPv3)
Privacy mode
Enables or disables SNMPv3 encryption.
Type
The security model used to encrypt messages.
DES: Data Encryption Standard 56-bit encryption.
AES: Advanced Encryption Standard 128-bit
encryption.
encryption.
Password
The password used to encrypt messages.
Must be at least 8 characters.
The Expressway does not support SNMP traps or SNMP sets, therefore it cannot be managed via SNMP.
Note: SNMP is disabled by default, because of the potentially sensitive nature of the information involved.
Do not enable SNMP on an Expressway on the public internet or in any other environment where you do not
want to expose internal system information.
Do not enable SNMP on an Expressway on the public internet or in any other environment where you do not
want to expose internal system information.
Configuring time settings
The
Time
page (
System > Time
) is used to configure the Expressway's NTP servers and to specify the
local time zone.
Cisco Expressway Administrator Guide (X8.2)
Page 37 of 378
Network and system settings
Network services