Configuring Authentication Parameters
Context
An OLT authenticates validity and identity of each ONU to prevent access from unauthorized ONUs. An EPON system supports the following ONU authentication modes:
Authentication Mode |
Description |
Advantage |
Disadvantage |
Usage Scenario |
|---|---|---|---|---|
Physical identifier authentication |
The OLT authenticates an ONU by checking the MAC address of the ONU. |
It is simple to configure and reliable. After an ONU passes the authentication, the MAC address used for authentication cannot be changed. |
When an ONU fails and needs to be replaced by a new one, the MAC address of the new ONU must be configured on the OLT, so this mode is not flexible. |
Networks requiring high security |
Logical identifier (LOID) authentication |
The OLT authenticates an ONU by checking the LOID and check code of the ONU. You can configure the OLT to check only the LOID, or check both the LOID and check code. |
You do not need to configure new logical identifiers when users change their physical locations. The OLT can be configured to check only the LOID or check both the LOID and check code, implementing flexible access. |
When two ONUs use the same logical identifier, the OLT allows the one that passes the authentication earlier to go online. Therefore, if an unauthorized ONU has gone online by using the logical identifier of an authorized ONU, the authorized ONU cannot go online. |
Networks requiring flexible access |
Password authentication |
This is a Huawei proprietary authentication mode. When this mode is used, the OLT must be a Huawei device. |
It is simple to configure and you do not need to configure new passwords when users change their physical locations. |
The OLT must be a Huawei device and support password authentication. |
Networks requiring flexible access |
An EPON system supports physical identifier authentication, LOID authentication, and password authentication. The three authentication modes can be used separately or jointly. All the authentication parameters are pre-configured on the OLT and cannot be modified on the ONU. If the authentication parameters are not pre-configured, the ONU cannot be successfully authenticated. Therefore, you can configure authentication parameters on the ONU according to the authentication mode.
Procedure
- Configure physical identifier authentication (MAC address
authentication).
The MAC address cannot be changed after the ONU is authenticated.
- Configure logical identifier authentication.
You can configure the OLT to check only the LOID, or check both the LOID and check code. When step 3 and step 4 are configured, the router will check both the LOID and check code.
- Configure password authentication.
Password authentication is a Huawei proprietary authentication mode. When this mode is used, the OLT must be a Huawei device.
