Gigabit MINI firewall SBT-FW-450L, 5 * 1000M RJ45 electrical port
Hardware parameters: CPU: IPQ-4019, Arm 32-bit, 4-core, 700MHz Memory: 1GB SSD: 512MB Network card: Electrical port: 5 * 1000M RJ45 Size: 90 * 115mm Introduction: The firewall can mark IP datagrams, P2P protocols, source and destination IP addresses, ports, IP protocols, protocols (ICMP, TCP, MSS, etc.), network interfaces, internal datagrams and connections through IP firewall filters, and filter and control the AKS byte, key content, time control, and packet length.
Software interface:

Firewall workflow:
1. The workflow of IP datagrams entering the input linked list, with shaded areas representing the processing components passed through:

2. The process of IP datagrams entering the output linked list, with shaded areas representing the processing components passed through:

3. The process of IP data entering the forward linked list, with shaded areas representing the processing components passed through:

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