Functions of the black-hole route on the USG2000 and USG5000

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The black-hole route provides the following functions: prevent the route loop between the NGFW and the uplink routing device; enable the uplink routing device to learn routes destined for addresses in the address pool.

Other related questions:
Configuration of the black-hole route on the USG2000 and USG5000
When the addresses in the NAT address pool and the interface address used to connect to the external network are in different network segments, you need to configure a black-hole route.

Functions of the routing table on the USG2000 and USG5000 series
When the network is disconnected, you can check whether a route to the specified destination exists in the routing table.

Route types in the routing table on the USG2000 and USG5000 series
Route types in the routing table on the USG2000 and USG5000 series include: protocol and destination address/mask.

Whether the UTM function is available on the USG2000 and USG5000
The UTM function can be used only after a license is purchased and activated.

Server black box
The black box consists of a built-in memory chip and fault monitoring software. The memory chip, independent from the server hard disks, stores fault information. The fault monitoring software records the kernel information when the server OS breaks down. For detailed information about the black box, see the iMana User Guide for your server model.

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