Application scenarios for the USG6000 served as a DHCP server

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When the USG6000 serves as a DHCP server, the typical application scenarios are as follows:
?The DHCP client and the DHCP server are in the same network segment: The firewall serves as the DHCP server that is connected to the DHCP client through the L2 switch (or hub).
?The DHCP client and the DHCP server are in different network segments: The DHCP server needs to cooperate with a DHCP relay to dynamically allocate IP addresses in different network segments.

Other related questions:
Typical applications for the USG6000 served as a DHCP relay
The USG6000 DHCP client and DHCP server are in different network segments. The DHCP relay is deployed in the network segment where the DHCP client resides. The DHCP client can communicate with the DHCP server over the DHCP relay and obtain configuration information such as IP address from the DHCP server.

Application scenarios where the USG6000 serves as the DNS Client
The firewall serves as the DNS Client and uses DNS to dynamically obtain the IP address corresponding to the domain name for user communications. When the firewall executes the following services, it can serve as the DNS Client to send DNS request packets to the DNS Server. Perform the ping or tracert operation in domain name mode. Access the security center platform in domain name mode to update the signature database. Access the CA server in domain name mode to obtain the certificate online.

Application scenarios of GRE features on the USG6000
GRE features are mainly applied in the following scenarios: GRE over IPSec, IPv6 over IPv4 tunnel, expanding the working scope of the network with restricted hops, and GRE VPN.

Whether the USG2000&5000&6000 series can serve as an FTP server
They can serve as an FTP server to upload configuration files and system software versions but not as a server to provide public services for intranet users.

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