Checks a Linksys Router or Switch using SNMP.
- Perl libraries: Net::SNMP
check_linksys.pl -H|--host=<host> -C|--community=<SNMP community string>
            [-e|--ethernetinterfaces]
            [-u|--uptime]
            [-d|--description]
            [-t|--timeout=<timeout in seconds>]
            [-v|--verbose=<verbosity level>]
            [-h|--help] [-V|--version]