â–„ Cisco ASR 5000 Series Product Overview
IPv4-IPv6 Interworking
MSRP is now supported when IPv4-IPv6 interworking is enabled.
IPv6 Support
In addition to supporting IPv4, the SCM supports IPv6 addressing. A CSCF service can be configured with v6 addresses
to support an all v6 network.
Important: For this feature, you may bind a CSCF service to either an IPv4 address or to an IPv6 address, but
not both simultaneously.
The following diagram shows the implementation where CSCF supports only IPv4.
Figure 2. IPv4 Configuration
With IPv6 support, the configuration supported would look like the following diagram. The DNS server could be either
IPv4 or IPv6.