ssh server tcp forwarding enable

Function

The ssh server tcp forwarding enable command enables the local port forwarding function on the SSH server.

The undo ssh server tcp forwarding enable command disables the local port forwarding function on the SSH server.

By default, the tcp port forwarding service of SSH server is disabled.

Format

ssh server tcp forwarding enable

undo ssh server tcp forwarding enable

Parameters

None

Views

System view

Default Level

3: Management level

Task Name and Operations

Task Name	Operations
ssh-server	write

Usage Guidelines

Usage Scenario

You can run the command to enable the local port forwarding service for the SSH server to allow the SSH server to establish TCP connections that cannot be established before due to limitations imposed by a firewall. Implementation of firewall restrictions to complete some previously unable to establish TCP connectionsTo enable the local port forwarding function on the SSH server, run the ssh server tcp forwarding enable command. To disable this function, run the undo ssh server tcp forwarding enable command. The SSH server can receive forwarding request messages from the SSH client and establish a TCP connection (forwarding channel) with a host with a specified IP address and port number to forward data received from the client to the host only after the local port forwarding function is enabled on the SSH server.

Precautions

A maximum of 32 forwarding channels can be established.
If a forwarding channel remains idle for 10 minutes, it is disabled.

Example

# Enable the tcp port forwarding servive of SSH server.

<HUAWEI> system-view
[~HUAWEI] ssh server tcp forwarding enable
Info: Succeeded in starting the FWD server.