Shared IPv4 and IPv6 Service Sessions on PPP Access Networks
You can configure one dynamic service profile that supports IPv4, IPv6, or both IPv4 and IPv6. It allows subscribers to share the same service session using IPv4 and IPv6 address families. If you define IPv4 and IPv6 in the dynamic service profile, one address family or both address families can be activated for the service. When the service is activated, matched packets are tagged with the same traffic class and treated the same way for both IPv4 and IPv6 traffic.
Accounting for Shared IPv4 and IPv6 Service Sessions
When service sessions are shared for both IPv4 and IPv6 subscribers, only one Accounting-Start message is sent for each service session regardless of the number of address families that are active. Statistics for each address family of a service session are cumulative across service activations and deactivations of the service.
Deactivating Shared IPv4 and IPv6 Service Sessions
If both IPv4 and IPv6 service sessions are active, and a deactivation message is received for one of the address families (IPv4 or IPv6), all active services for that address family are deactivated. If one address family remains active on the service, the service session remains in the ACTIVE state. If the address family that is deactivated is the only family currently running on the service session, the service returns to the INIT state.
