R3721-F3210-F3171-HP High-End Firewalls NAT and ALG Configuration Guide-6PW101

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Figure 19 Configuring dynamic NAT
• Select GigabitEthernet0/1 for Interface.
• Enter 2001 in ACL.
• Select PAT for Address Transfer.
• Enter 0 in Address Pool Index.
• Click Apply.
Internal server configuration example
Network requirements
As shown in Figure 20, a company provides two Web servers and one FTP server for external users to
access. The internal network address is 10.110.0.0/16. The internal address for the FTP server is
10.110.10.3/16, for the Web server 1 is 10.110.10.1/16, and for the Web server 2 is 10.110.10.2/16. The
company has three public IP addresses from 202.38.1.1/24 through 202.38.1.3/24. Specifically, the
company has the following requirements:
• External hosts can access internal servers using public address 202.38.1.1/24.
• Port 8080 is used for Web server 2.
Figure 20 Network diagram
Configuration procedure
# Configure the FTP server.