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CatPaw Rumors: Post Release Summary, Part II

Our agent, snmpd.exe, supports all three SNMP versions. Then how to get data from it?

SNMP v1 and v2c

The community strings for both GET and SET operations are the same, public.

SNMP v3

Community names are obsolete, so snmpd.exe supports three users (to match three modes).

  • neither is the user for noAuthNoPriv mode. If you use it, remember to use default authentication provider and default privacy provider.
  • auth is the user for authNoPriv mode. It uses MD5 authentication provider whose phrase is authentication. Its privacy provider is still the default one.
  • privacy is the user for authPriv mode. It uses MD5 authentication provider whose phrase is authentication, but its privacy provider is the DES privacy provider whose phrase is privacyphrase.

Now let’s see if you are going to test out snmpd.exe using our command line tools what commands should be used.

SNMPGET

For SNMP v1 and v2c, typical command is

snmpget -v=1 -c=public localhost 1.3.6.1.2.1.1.1.0

For SNMP v3, typical command is

snmpget -v=3 -l=authPriv -a=MD5 -A=authentication -x=DES -X=privacyphrase -u=privacy localhost 1.3.6.1.2.1.1.1.0

SNMPSET

For SNMP v1 and v2c, typical command is

snmpset -v=1 -c=public localhost 1.3.6.1.2.1.1.6.0 s Shanghai

For SNMP v3, typical command is

snmpset -v=3 -l=authPriv -a=MD5 -A=authentication -x=DES -X=privacyphrase -u=privacy localhost 1.3.6.1.2.1.1.1.0 s Shanghai

SNMPBULKGET

For SNMP v2c, typical command is

snmpbulkget -v=2 -c=public -Cr=10 localhost 1.3.6.1.2.1.1.1.0

For SNMP v3, typical command is

snmpbulkget -v=3 -l=authPriv -a=MD5 -A=authentication -x=DES -X=privacyphrase -u=privacy -Cr=10 localhost 1.3.6.1.2.1.1.1.0

SNMPGETNEXT

For SNMP v1 and v2c, typical command is

snmpgetnext -v=1 -c=public localhost 1.3.6.1.2.1.1.1.0

For SNMP v3, typical command is

snmpgetnext -v=3 -l=authPriv -a=MD5 -A=authentication -x=DES -X=privacyphrase -u=privacy localhost 1.3.6.1.2.1.1.1.0

SNMPTRANSLATE

Typical command is

snmptranslate 1.3.6.1.2.1.1.1.0

SNMPWALK

For SNMP v1, typical command is

snmpwalk -v=1 -c=public -m=subtree localhost 1.3.6.1.2.1.1

For SNMP v2c, typical command is

snmpwalk -v=2 -c=public -Cr=10 -m=subtree localhost 1.3.6.1.2.1.1

For SNMP v3, typical command is

snmpwalk -v=3 -l=authPriv -a=MD5 -A=authentication -x=DES -X=privacyphrase -u=privacy -Cr=10 -m=subtree localhost 1.3.6.1.2.1.1

(Update: Two more bugs were found and fixed during the authoring of this article. So we will refresh CatPaw again, and it should be 5.2.)

This post is licensed under CC BY 4.0 by the author.
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