This wiki is a community-maintained resource about everything there is to know about IPFire.
Net-SNMP is the most used SNMP implementation for Linux.
At first the net-snmp has to be installed with Pakfire. You can do that with the Webinterface or on the shell with:
pakfire -y install netsnmpd
To get access to a Linux-System over SNMP, you have to modify:
Should the Subnet 192.168.0.0/24 be allowed to read the whole SNMP-Directory, to following have to be added:
com2sec localnet 192.168.0.0/24 public group localgroup usm localnet group localgroup v1 localnet view all included .1 access localgroup "" any noauth exact all none none
snmpwalk -v1 -c public 192.168.0.254 system
Change the IP to the system that should be tested.