There is an ongoing outage on the primary CPAN mirror. It is possible to work around the issue by using MetaCPAN as a mirror.
Module Install Instructions
To install , copy and paste the appropriate command in to your terminal.
cpanm GRAHAMC/SiePerl-5.00503-bin-1.0-Linux2.2.14.INSTALL.tar.gzperl -MCPAN -e shell
install GRAHAMC/SiePerl-5.00503-bin-1.0-Linux2.2.14.INSTALL.tar.gzFor more information on module installation, please visit the detailed CPAN module installation guide.