Questions[snmp](ubuntu)

I am new to the SNMP protocol. I try to configure SNMP-traps for Zabbix but I am confused what daemons I have to use. I need to install snmptrapd, but somehow snmpd is required for that:

sudo apt install snmptrapd
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following additional packages will be installed:
  snmpd
The following NEW packages will be installed:
  snmpd snmptrapd
0 upgraded, 2 newly installed, 0 to remove and 75 not upgraded.

What is the relationship between these 2 packages? Am I right that these 2 are daemons?

And what is inside the Ubuntu SNMP-package? What's the relationship between the snmp and snmpd packages?

I am trying to set the SNMP authentication protocol to SHA to connect to my CISCO switch. When I run:

sudo munin-node-configure --snmp SWITCH01 --snmpversion 3 --snmpauthprotocol sha --snmpusername munin --snmpauthpass PASSWORD

I am getting the error:

Unknown option: snmpauthprotocol

It does say in the manual that the option is available:

--snmpauthprotocol <protocol>
           Authentication protocol.  One of 'md5' or 'sha' (HMAC-MD5-96, RFC1321 and SHA-1/HMAC-SHA-96, NIST FIPS PIB 180, RFC2264).  ['md5']

I could change the protocol on the switch ... If I hadn't accidentally denied ssh access for myself ... I don't feel like taking a 2 hour drive today :/

Just as an extra note, if I run it without the --snmpauthprotocol and with --debug I get:

Received usmStatsWrongDigests.0 Report-PDU with value 4 during synchronization

So, I definitely can't use md5 ...

I'm running Ubuntu 12.10 and I'm trying to find my SNMP community string.

I followed the instructions here, but my /etc/snmp/snmpd.conf file has different contents than what they're talking about.

• Their snmpd.conf file: rocommunity [community string]
• Mine: rocommunity public default -V systemonly

That being the case, what is my community string?

I want to install a SNMP client (NOT AGENT) on my computer so I can connect to a Cisco Router on which an SNMP agent is already installed.

The problem that all the documentation I found for Ubuntu were for installing an agent not a client.

I am using snmp and trying to get with

snmpwalk -v 2c -c public x.x.x.x ipadd

where x.x.x.x is the ip of the pc with ubuntu 12.04 i get this answer :

IP-MIB::ipAddrTable = No Such Object available on this agent at this OID

so how can I get the ip addres from a ubuntu 12.04 LT pc , there is maybe another comand that I can use?

Thanks for the answer .