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?
Cisco ASA5525-FTD-K9 Security Appliance with FirePower Services
$1000.00
Juniper Networks SRX-210 Secure Services Gateway VPN Firewall
$39.99
Cisco FPR2110-ASA-K9 Firepower Security Appliance
$299.99
Ubiquiti Networks USG Unifi Security Gateway Router/Firewall
$29.95
New Fortinet FortiGate 40F Network Firewall FG-40F
$219.99
Fortinet Fortiwifi 60D FWF-60D Security Appliance Firewall Wifi VPN
$29.99
OPNsense six-port Gigabit router/firewall on Lanner FW-7535 hardware
$69.00
Cisco ASA 5506-X Network Security Firewall Appliance w/ Power Adapter
$69.00
Fortinet Fortiwifi 60D FG-60D Security Appliance Firewall / VPN w/ AC Adapter
$34.97
Fortinet FortiGate 60F | 10 Gbps Firewall Security Throughput (FG-60F)- Open Box
$381.99