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?
Palo Alto PA-440 (NEW) w/PSU & Accessories 8-Port Network Security Firewall
$349.99
Juniper SRX345 SRX345-SYS-JB 5 Gbps 8x GE RJ45 & 8x GE SFP Services Gateway
$124.99
Firewall pfSense 2.7.2 - intel N3160 CPU -8GB Memory - Dual NIC 1 GB - 128GB SSD
$97.77
♻️ Palo Alto PA-220 Next-Gen Firewall 8x Gigabit Ports Fanless Design ⚡Fast Ship
$35.00
Fortinet FortiGate 60E Network Security Firewall
$40.00
Firewalla: Cyber Security Firewall for Home & Business, Protect Network
$189.99
Fanless Mini PC Intel J1900 4 LAN Port 4G RAM/64G SSD Fanless pfSense Firewall
$95.00
Fortinet Fortigate-60E Network Security Firewall Initialized FG-60E w/Adapter
$89.00
Juniper SRX345-SYS-JB 8x GE RJ45 & 8x GE SFP Services Gateway w/ SRX-MP-LTE-AE
$175.00
Firewall pfSense 2.72 HP t740 AMD Ryzen 8GB RAM - 64 GB NVMe - NIC 4 + 1 port GB
$117.77