F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices NAT and ALG Configuration Guide-6PW100
Table Of Contents
- Title Page
- Table of Contents
- Configuring NAT
- Overview
- Configuration guidelines
- Configuring NAT in the Web interface
- Recommended configuration procedure
- Creating an address pool
- Configuring dynamic NAT on an interface
- Creating a static address mapping
- Enabling static NAT on an interface
- Configuring an internal server
- Configuring ACL-based NAT on the internal server
- Configuring DNS mapping
- NAT configuration example
- Internal server configuration example
- Configuring NAT at the CLI
- NAT configuration task list
- Configuring static NAT
- Configuring dynamic NAT
- Configuring an internal server
- Configuring ACL-based NAT on an internal server
- Configuring DNS mapping
- Displaying and maintaining NAT
- One-to-one static NAT configuration example
- Dynamic NAT configuration example
- Common internal server configuration example
- NAT DNS mapping configuration example
- Troubleshooting NAT
- Configuring NAT-PT
- Feature and hardware compatibility
- Overview
- NAT-PT configuration task list
- Configuration prerequisites
- Enabling NAT-PT
- Configuring a NAT-PT prefix
- Configuring IPv4/IPv6 address mappings on the IPv6 side
- Configuring IPv4/IPv6 address mappings on the IPv4 side
- Setting the ToS field after NAT-PT translation
- Setting the traffic class field after NAT-PT translation
- Configuring static NAPT-PT mappings of IPv6 servers
- Displaying and maintaining NAT-PT
- NAT-PT configuration examples
- Troubleshooting NAT-PT
- NAT444
- Configuring ALG
- Support and other resources
- Index
57
4. Exchanging data.
The host and the FTP server exchange data through the established data connection.
36B
Configuring ALG in the Web interface
By default, ALG is enabled only for FTP.
92BConfiguration procedure
To enable ALG for protocols:
1. From the navigation tree, select Firewall > ALG.
Figure 40 ALG configuration page
2. Add target application protocols to the Selected Application Protocols list to enable ALG for them.
By default, ALG is enabled for all protocols.
3. Click Apply.
93BFTP ALG configuration example
144BNetwork requirements
As shown in 281HFigure 56, a company uses the private network segment 192.168.1.0/24. The company
wants to provide FTP services using public IP address 5.5.5.10.
Configure NAT and ALG on the firewall so that hosts on the external network can access the FTP server
on the internal network.