H12-811-V2.0: HCIA-Datacom V2.0Demo

NAPT performs address-and-port translation, distinguishing concurrent private connections through translated port numbers so private hosts can share public address resources. Easy IP uses this address-and-port translation behavior with public addresses associated with an outbound interface.

SSH client first-time authentication is enabled by default on Huawei network devices, allowing the client to automatically accept and locally save an unrecognized server's public key on the first connection. The ssh client first-time enable command is only required to restore this behavior after it has been explicitly disabled with undo ssh client first-time enable; it is not a mandatory prerequisite that must always be executed before a first-time login can succeed.

AAA accounting collects resource-consumption data for billing, auditing, capacity planning, and trend analysis. It can record Internet-access usage, including traffic volume and session duration; it is not limited to fees. RFC 2975

PAT performs many-to-one address translation and uses port translation to distinguish concurrent sessions. Consequently, multiple intranet users with different original IP addresses can share the same post-NAT IP address; they are not required to have different translated IP addresses. The configured address pool includes 100.1.23.254 as a possible translated address.

The put command uploads a local file from the FTP client to the remote FTP server. Huawei documents its format as put local-filename [ remote-filename ].