@make Well it all goes via a computer disposable facility -  so  in theory it's not just getting thrown in a landfill. However,  the Cisco Pix 525 is rubbish.  It's also been EOL since 200, and it was rubbish then. You could DOS it by scp'ing a file through it.  Throughput would drop from 100Mb/s to something ridiculous low, even when it was configured to just allow packets through.

 The Juniper SRX240 are better firewalls, and may still be in support, so I might not bin them immediately