Here's the general process based on the information available:

    Access the BBC:
        Open a web browser and navigate to the BBC web interface address for your Sangfor appliance.
        Enter your valid BBC credentials to log in.

    Locate VPN Paths:
        Navigate to the section managing VPN paths within the BBC interface. This might be under "Network" or "Security" depending on your Sangfor version.

    Identify WAN3 Path:
        Find the specific VPN path configuration related to WAN3. This might be identified by name, interface label, or other relevant information.

    Edit Interface Settings:
        Edit the settings for the identified WAN3 path. Look for an option to change the interface associated with WAN3. This might be labeled as "Interface," "Outgoing Interface," or similar.

    Select Replacement Interface:
        From the available options, choose the new interface you want to use for WAN3. This could be another physical interface (e.g., eth1) or a virtual interface (e.g., veth550).

    Save and Apply Changes:
        Carefully review your selections and confirm them. Save the changes to the VPN path configuration.
        Depending on your Sangfor version, you might need to apply the changes separately.

Here's the general process based on the information available:

    Access the BBC:
        Open a web browser and navigate to the BBC web interface address for your Sangfor appliance.
        Enter your valid BBC credentials to log in.

    Locate VPN Paths:
        Navigate to the section managing VPN paths within the BBC interface. This might be under "Network" or "Security" depending on your Sangfor version.

    Identify WAN3 Path:
        Find the specific VPN path configuration related to WAN3. This might be identified by name, interface label, or other relevant information.

    Edit Interface Settings:
        Edit the settings for the identified WAN3 path. Look for an option to change the interface associated with WAN3. This might be labeled as "Interface," "Outgoing Interface," or similar.

    Select Replacement Interface:
        From the available options, choose the new interface you want to use for WAN3. This could be another physical interface (e.g., eth1) or a virtual interface (e.g., veth550).

    Save and Apply Changes:
        Carefully review your selections and confirm them. Save the changes to the VPN path configuration.
        Depending on your Sangfor version, you might need to apply the changes separately.