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Technical Configuration Guide for SNMP v2.0 December 2006
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NORTEL External Distribution
15
3.3.4 Modifying and/or adding community strings
Initially, there are 4 communities: first, second, index1 and index2. first represents the default
read-only access (public) and second represents the default read-write access (private) created
by the SNMPv3 engine. The access rights are determined by the Security Name from the VACM
table.
Previously existing default communities prior to software upgrade to release 3.7 appear as
index1 (private) and index2 (public). They can be modified or deleted. If you had other
communities defined, they will appear converted as index3, index4, etc…
You can modify or delete those, but you can not delete the default communities first and second,
however, you can change the community strings for them.
• ERS-8606:5# config snmp-v3 community info
================================================================================
Community Table
================================================================================
Index Name Security Name Transport Tag
--------------------------------------------------------------------------------
first ******** readview
index1 ******** initialview
index2 ******** readview
second ******** initialview
4 out of 4 Total entries displayed
--------------------------------------------------------------------------------
Please note that in software release 3.5, the community name is displayed as shown below.
• ERS8600G:3# config snmp-v3 community info
==========================================================================
Community Table
==========================================================================
INDEX NAME SECURITYNAME
--------------------------------------------------------------------------
first public initialview
second private initialview
2 out of 2 Total entries displayed
--------------------------------------------------------------------------
To change the default communities, for example, the index named first with a new community
name of readonly and the index named second with a new community name of readwrite, enter
the following commands:
• ERS-8606:5# config snmp-v3 community commname first new-commname
readonly
• ERS-8606:5# config snmp-v3 community commname second new-commname
readwrite
You will now not be able to access the switch with the default communities public and private; you
will need to use readonly and readwrite instead.
Note: You will not be able to see those new communities as they are now encrypted and hidden.
However, you can still always modify them.
If you wish to change or create further communities, alter the existing communities, create a new
community or delete a community (for example, in case you have forgotten the community string,
which is now encrypted and hidden).