Whether the USG2000 and USG5000 series support the NAT based on domain names accessed by intranet users

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USG firewalls do not support NAT based on domain names accessed by intranet users. To allow users to access specified websites, you can configure the URL filtering.

Other related questions:
Whether the USG2000 and USG5000 support multicast NAT
USG2000 and USG5000 support multicast NAT

Whether the L2TP domain name and tunnel key are case-sensitive on the USG2000 and USG5000
On the USG2000 and USG5000, the L2TP domain name is case-insensitive but the tunnel key is case-sensitive.

Configuring intranet users to access a public address on the USG2000/5000
Configuring intranet users to access a public address on the USG2000/5000 as follows: Search for Example for Configuring Address Pool-based NAPT and NAT Server in USG2000/5000 Product Documentation.

Whether the intranet servers can use the same port number to access the external network after experiencing the NAT on the USG2000, USG5000, and USG6000
Can the intranet servers use the same port number to access the external network after experiencing the NAT on the USG2000, USG5000, and USG6000? No.

Whether OceanStor 9000 supports accesses through domain names
OceanStor 9000 supports accesses through domain names. OceanStor 9000 has dynamic and static domain names. You can either connect an external DNS server or use OceanStor 9000 itself for domain name resolution. For details about the access mode, see the OceanStor 9000 InfoEqualizer Feature Guide: - OceanStor 9000 V100R001C01 InfoEqualizer Feature Guide - OceanStor 9000 V100R001C20 InfoEqualizer Feature Guide - OceanStor 9000 V100R001C30 File System Feature Guide

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