Whether the USG2000&5000 series supports TCP proxy defense

9

Yes.
By default, the TCP proxy function is disabled.

Other related questions:
Whether the USG6000 series supports TCP proxy defense
Yes. By default, the TCP proxy function is disabled.

Whether the USG2000&5000 series supports SIP flood attack defense
The USG2000&5000 supports SIP flood attack defense based on IP addresses and security zones.

Whether the USG2000&5000 supports IP spoofing attack defense
Yes. When the USG2000&5000 works in transparent or multi-egress mode, or policy-based routing is applied, IP spoofing attack defense cannot be configured.

Whether the USG2000&5000 series supports threshold learning
No.

Whether the USG2000&5000 support capturing packets
You can enable the packet capture function on the USG2000&5000 as follows: 1. Configure the packet capture queue. [USG] packet-capture all-packet queue 0 interface GigabitEthernet 0/0/1 2. Enable the packet capture function. [USG] packet-capture startup manual 3. Save packets in the specified queue as file 1.cap on the device. The default directory is hda1:/. [USG] packet-capture queue 0 to-file 1.cap 4. Use FTP to download file 1.cap from the device, use the packet capture software to open the file, and analyze the captured packets. 5. Clear the packet capture queue and release the memory. After confirming that the host has completed receiving the packets, delete all packets from the queue. reset packet-capture queue 0

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