Have you tried security oriented distro Operator.iso by ussysadmin.org? It is based on knoppix and debian. Also it is one of the best network testing and pen testers tool?
PFSense Firewall - New N5100 chip - 2.5 GbE - 250GB SSD - 8GB RAM - US Seller
$249.95
Fortinet Fortigate-50E FG-50E Network Security Firewall Initialized Power Cable
$55.73
Fortinet FortiGate FG-60D Firewall Security Appliance W/ Power Supply 1059-2-1
$180.00
pfSense Firewall Router (6) 1Gb Intel Ethernet Ports AES-NI CPU 4GB RAM 80GB SSD
$79.95
Fortinet FortiGate FG-40F Network Security Firewall
$200.00
Fortinet Fortigate FG-60D Firewall Security Appliance w/ AC
$49.98
Netgate SG-2440 with pfSense Plus Software - Router, Firewall, VPN Security Gate
$50.00
Fortinet Fortigate FG-60D Firewall Network Security Appliance v5.4.7
$29.00
New Open Box - WatchGuard Firebox T40 Network Security/Firewall FS4AE5W - Gold
$159.00
Cisco ASA 5508-X Firewall Adaptive Security Appliance / Not Affected Serial
$199.99