That's what I thought, too. But the instructions for the application said to do so, and I figured it wouldn't hurt. Yet, when I run the application, I still get the same error as when I tried to install the module:

[root@burvil perl]# /usr/local/netdisco/netdisco -u root
Can't load '/usr/lib/perl5/site_perl/5.8.5/i386-linux-thread-multi/aut
+o/NetSNMP/default_store/default_store.so' for module NetSNMP::default
+_store: libnetsnmp.so.10: cannot open shared object file: No such fil
+e or directory at /usr/lib/perl5/5.8.5/i386-linux-thread-multi/DynaLo
+ader.pm line 230.
 at /usr/lib/perl5/site_perl/5.8.5/i386-linux-thread-multi/SNMP.pm lin
+e 16
Compilation failed in require at /usr/lib/perl5/site_perl/5.8.5/i386-l
+inux-thread-multi/SNMP.pm line 16.
BEGIN failed--compilation aborted at /usr/lib/perl5/site_perl/5.8.5/i3
+86-linux-thread-multi/SNMP.pm line 16.
Compilation failed in require at /usr/lib/perl5/site_perl/5.8.5/SNMP/I
+nfo.pm line 16.
BEGIN failed--compilation aborted at /usr/lib/perl5/site_perl/5.8.5/SN
+MP/Info.pm line 16.
Compilation failed in require at /usr/local/netdisco/netdisco line 25.
BEGIN failed--compilation aborted at /usr/local/netdisco/netdisco line
+ 25.
[root@burvil perl]#
[download]

So, even though perldoc NetSNMP::agent gives me a valid manpage, the error still occurs. What I need is NetSNMP::default_store, not NetSNMP::agent, to avoid the error.