When the device functions as a PPPoE client to obtain public IP addresses, how do I configure NAT service on a dialer interface

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Run the nat outbound acl-number command on the dialer interface to configure Internet access in Easy IP mode.

Other related questions:
How to provide the NAT Internet access service on the dialer interface when the AR router serves as the PPPoE client to obtain the public network IP address?
You can run the nat outbound acl -number command on the dialer interface to provide the Internet access service in the Easy IP method.

How is the NAT server configured on the PPPoE dialup interface
On an AR, the NAT server can be configured on the PPPoE dialup interface. 1. Create a dialup interface and configure parameters on the dialup interface. 2. Configure the NAT server on the dialup interface. The internal IP address of the internal server is 192.168.20.2/24, the port used for providing services is port 8080, and the external address is 202.169.10.5/24. [Huawei] interface dialer 1 [Huawei-Dialer1] nat server protocol tcp global 202.169.10.5 www inside 192.168.20.2 8080 [Huawei-Dialer1] quit

What should I do if I do not know the PPP authentication mode of the PPPoE server when the device functions as a PPPoE client
PPPoE authentication will fail if inconsistent PPP authentication modes are used on the PPPoE server and client. If you do not know the PPPoE authentication mode provided by the carrier, you are advised to configure both CHAP and PAP authentication modes on the device. The device will dynamically determine the authentication mode based on packets exchanged with the PPPoE server. Run the ppp chap user username command in the dialer interface view to configure a user name for CHAP authentication. Run the ppp chap password cipher password command in the dialer interface view to configure a password for CHAP authentication. Run the ppp pap local-user username password cipher password command in the dialer interface view to configure a user name and a password for PAP authentication.

How are NAT services not interrupted when external interfaces on the AR router used as the NAT server dynamically obtain IP addresses
When the AR router functions as the NAT server and the external interface changes continuously, the dialer interface needs to be configured to ensure nonstop NAT services.

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