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Preventing the LAC from Sending Calling Number AVP 22 to the LNS
Calling Number AVP 22 typically identifies the interface that is connected to the customer in the access network. When RADIUS includes the Calling-Station-Id in the Access-Accept message, that value is used for the Calling Number AVP. Otherwise, the underlying interface (for example, the S-VLAN IFL) on which the PPPoE session is established is used for the Calling Number AVP value.
By default, the LAC includes this AVP in the incoming-call request (ICRQ) packets that it sends to the LNS. However, you may wish to hide your network access interface information. To do so, you can configure the tunnel so that the LAC does not send the Calling Number AVP to the LNS.
To disable sending the Calling Number AVP:
- Configure disabling.[edit services l2tp]user@host# set disable-calling-number-avp
