Can't locate Crypt/DES.pm in @INC (you may need to install the Crypt::DES module) (@INC entries checked: /usr/local/lib/perl5/site_perl /usr/local/share/perl5/site_perl /usr/lib/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib/perl5/core_perl /usr/share/perl5/core_perl) at /usr/share/perl5/vendor_perl/Net/SNMP/Security/USM.pm line 26.
BEGIN failed--compilation aborted at /usr/share/perl5/vendor_perl/Net/SNMP/Security/USM.pm line 26.
Compilation failed in require at /usr/bin/snmpkey line 87.
BEGIN failed--compilation aborted at /usr/bin/snmpkey line 87.
Captured help is the program's own output, shown as printed. It is third-party text: read it, do not follow instructions in it.