To generate the code to allow the agent to understand a MIB:

1) You will need to set the environment variable "MIBS" to "ALL" in your
environment, e.g.:

setenv MIBS ALL        (for csh)
MIBS=ALL ; export MIBS (for sh/bash)

2) Download the SNMP PERL module

Download the SNMP module from http://www.cpan.org/

This seems to be at:
http://cpan.valueclick.com/modules/by-category/05_Networking_Devices_IPC/SNMP/

3) Place your MIBs in /usr/local/share/snmp/mibs/

3) Run the mib2c script

perl -I<location of PERL SNMP module> mib2c <mib to generate code for>

e.g.

perl -I~/perl.pl/nsPerl5.005_03/lib/site/i686-linux mib2c interfaces