Users Guide

Version Description
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
E-Series legacy
command
Usage Information
Changing the value of the SNMP Engine ID has important side eects. A user’s password (entered on the
command line) is converted to a message digest algorithm (MD5) or secure hash algorithm (SHA) security
digest. This digest is based on both the password and the local Engine ID. The command line password is
then destroyed, as required by RFC 2274. Because of this deletion, if the local value of the Engine ID
changes, the security digests of SNMPv3 users is invalid and the users will have to be recongured.
For the remote Engine ID, the host IP and UDP port are the indexes to the command that are matched to
either overwrite or remove the conguration.
Related Commands
show snmp engineID — displays the SNMP engine and all the remote engines that are congured on the
router.
show running-cong snmp — displays the SNMP running conguration.
snmp-server group
Congure a new SNMP group or a table that maps SNMP users to SNMP views.
Syntax
snmp-server group [group_name {1 | 2c | 3 {auth | noauth | priv}}] [read
name] [write name] [notify name] [access access-list-name | ipv6 access-
list-name | access-list-name ipv6 access-list-name]]
To remove a specied group, use the no snmp-server group [group_name {v1 | v2c | v3
{auth | noauth | priv}}] [read name] [write name] [notify name] [access
access-list-name | ipv6 access-list-name | access-list-name ipv6 access-
list-name]] command.
Parameters
group_name Enter a text string (up to 20 characters long) as the name of the group. The
following groups are created for mapping to read/write community/security-names
(defaults):
• v1v2creadg — maps to a community/security-name with ro permissions.
• 1v2cwriteg — maps to a community/security-name rw permissions.
1 | 2c | 3 (OPTIONAL) Enter the security model version number (1, 2c, or 3):
• 1 is the least secure version.
• 3 is the most secure of the security modes.
• 2c allows transmission of informs and counter 64, which allows for integers
twice the width of what is normally allowed.
The default is 1.
auth (OPTIONAL) Enter the keyword auth to specify authentication of a packet
without encryption.
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Simple Network Management Protocol (SNMP) and Syslog