Release Notes for Cisco Prime Network Registrar, Release 11.4
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Cisco Prime Network Registrar, Release 11.4
Supported software feature sets
Cisco Prime Network Registrar, Release 11.4
CPNR 11.4 introduces significant enhancements across DHCPv6 and DNS to support updated RFC requirements. The release adds support for RFC 9686, enabling DHCPv6 clients using SLAAC to register self-generated IPv6 addresses with the server, improving address visibility. The DHCPv6 server is also updated for full compliance with RFC 9915 (the latest DHCPv6 Internet Standard). On the DNS side, CPNR 11.4 introduces support for RFC 8914 (Extended Errors) for improved troubleshooting and enhances RFC 9460 (Service Binding) Alias Mode to ensure interoperability with current web browsers. This release strengthens standards compliance, diagnostics, and interoperability.
Note: If you are migrating to Cisco Prime Network Registrar 11.4 from an earlier version of Cisco Prime Network Registrar, you must review the release notes for the releases that occurred in between, to fully understand all the changes.
This section provides a brief description of the new software features introduced in this release.
Table 1. New software features for Cisco Prime Network Registrar, Release 11.4
| Product impact |
Feature |
Description |
| API Experience |
DHCPv4 Scope Name Modification via REST API |
In Cisco Prime Network Registrar 11.4, the DHCPv4 scope name can be changed using the REST API by updating the name attribute through a PUT operation on the existing scope resource. |
| Ease of Use |
DHCPv6 Updates – RFC 9915
|
In Cisco Prime Network Registrar 11.4, DHCPv6 is updated to follow the latest changes in RFC 9915. The following features are no longer supported: · IA_TA option (temporary address) · Server Unicast option The CPNR server will NOT provide a means to re-enable these features via flags, such as the server-flags attribute. |
| Ease of Use |
DHCPv6 Support for RFC 9686 – Self-Generated Address Registration
|
In Cisco Prime Network Registrar 11.4, DHCPv6 supports RFC 9686, allowing clients to register self-generated IPv6 addresses with the DHCPv6 server. This enables the server to log and track these addresses for troubleshooting and security purposes. · The RFC9686 support added only includes the mandatory logging. The server does not track the self-registered leases (i.e., it does not add them to the lease database, exchange with failover partner, not report in lease query operations). · The DHCPv6 Client logging (in most log messages) now includes an "LLA: <mac-address>" field to provide the Client's Link Local Address if supplied by the relay agent in the relay-forward via the Client Link-Layer Address option (see RFC6939). |
| Ease of Use |
Extended DNS Errors (RFC 8914) Support
|
In Cisco Prime Network Registrar 11.4, support for RFC 8914 – Extended DNS Errors (EDE) is provided separately for Authoritative DNS (ADNS) and Caching DNS (CDNS). RFC 8914 defines 25 extended DNS error codes. This release supports 13 selected descriptive error codes. These extended error details are included in DNS responses and displayed in logs for both ADNS and CDNS, improving troubleshooting and operational visibility. |
| Ease of Use |
Support for RFC 9460 (SVCB & HTTPS Resource Records) – ADNS
|
In Cisco Prime Network Registrar 11.4, Authoritative DNS (ADNS) supports RFC 9460 SVCB and HTTPS resource records. These records enable apex aliasing and support service discovery and protocol negotiation (for example, HTTP/2 and HTTP/3). Note: The Caching DNS (CDNS) module does not support alias chains or nested alias chains in alias mode. |
This table lists the resolved issues in this specific software release.
Note: This software release may contain bug fixes first introduced in other releases. To see additional information, click the bug ID to access the Cisco Bug Search Tool.
Table 2. Resolved issues for Cisco Prime Network Registrar, Release 11.4
| Bug ID |
Description |
| Queries that result in NOIMPL responses are not counted as part of answer-total statistics |
|
| Segmentation fault occurs when running the cnr_tactool utility |
|
| Resetting stats during activity summary logging can produce bogus data |
|
| DHCP sample statistics shown wrongly when enhanced-sample-counters is disabled |
|
| Unable to login to regional server after 11.1.2 local re-registration |
For the complete list of bugs for this release, see the cpnr_11_4_buglist.pdf file available at the product download site. See this list especially for information about fixes to customer-reported issues.
Table 3. Enhancements for Cisco Prime Network Registrar, Release 11.4
| Bug ID |
Description |
| Upgrade smart licensing to 5.1.36 |
|
| Some buttons/options on Web UI do not work |
|
| Support C++17 |
For the complete list of bugs for this release, see the cpnr_11_4_enhancements.pdf file available on the product download site. See this list especially for information about fixes to customer-reported issues.
A regional cluster running Cisco Prime Network Registrar 11.4 is required to synchronize with local clusters running versions earlier than Cisco Prime Network Registrar 11.4. Cisco Prime Network Registrar 11.4 protocol servers are compatible with versions 10.1 and later.
Cisco Prime Network Registrar 11.4 supports both Smart Licensing and traditional licensing. However, it does not support the hybrid model, that is, you can use only one of the license types at a time. Cisco Prime Network Registrar 11.4 uses individual component licenses.
This allows you to purchase and install the following services individually or as a suite:
· DHCP services
· Authoritative DNS services
· Caching DNS services
If you need additional DNS Caching licenses, you should order them based on Server count since DNS Caching is a server-based license.
To install and manage DHCP, DNS, and Caching DNS licenses, you must deploy a regional server. The regional server, among other things, is used to install, count, and manage licensing for these components.
It licenses all services in the local clusters. Only the regional installation requires a license and can accept new licenses. Afterward, the regional server authorizes individual local clusters according to the available licenses.
Licensing Overview for Cisco Prime Network Registrar 11.x
● License Components: Cisco Prime Network Registrar 11.x is licensed in two parts:
◦ Permanent License: Grants ongoing usage rights.
◦ SIA License: Allows for upgrades to future releases.
● Upgrade EligibilityUpgrade Eligibility: If you have an unexpired SIA license from Cisco Prime Network Registrar 10.x, or an unexpired SWSS contract from Cisco Prime Network Registrar 9.x, you can upgrade until these entitlements expire.
● Service-Based Licensing: In Cisco Prime Network Registrar 11.4, licensing is based on the services you require.
For more information, see the License Files section in Cisco Prime Network Registrar 11.4 Installation Guide..
● Licensing MethodsLicensing Methods:
◦ PAK-based Licensing: Requires installation of the PAK onto the Cisco Prime Network Registrar regional server.
◦ Smart Licensing: Delivers licenses to your Smart Account and is enabled by default in Cisco Prime Network Registrar 11.4 You can override it after installation.
Note:
Licenses for Cisco Prime Network Registrar 10.x or earlier are not valid for Cisco Prime Network Registrar 11.x. You should have a new license for Cisco Prime Network Registrar 11.x. For the 11.x regional, if one has 10.x CDNS clusters, the 10.x CDNS licenses must be added on the regional server (10.x CDNS clusters will use 10.x licenses, 11.x CDNS clusters will use 11.x licenses).
Supported software feature sets
The Cisco Prime Network Registrar 11.4 kit contains the following files and directories:
● Linux: CPNR Regional, Local and Client RPM applications for RHEL 8.x/AlmaLinux 8.x/RockyLinux 8.x and RHEL 9.x/AlmaLinux 9.x/RockyLinux 9.x
● OVA: Regional and Local OVA on AlmaLinux 9.6
● QCOW2: Regional and Local QCOW2 on AlmaLinux 9.6
● Container: Containers for Docker on Red Hat UBI 9.6
● Kubernetes: Sample YAML files for deployment of Cisco Prime Network Registrar container on Kubernetes
● Docs: Bugs and Enhancement List
Cisco Prime Network Registrar 11.4 is available as a virtual appliance, which includes all its functionalities along with AlmaLinux 9.6 operating systems. The virtual appliance supports VMware ESXi 7.x and 8.x platforms, as well as OpenStack. For more details, see the Cisco Prime Network Registrar Virtual Appliance section in Cisco Prime Network Registrar 11.4 Installation Guide.
Note:
● The Linux distribution included with the optional pre-built VM downloads for Cisco Prime Network Registrar is open-source software and is not owned or supported by Cisco. Customers needing support for Linux should contact third-party software providers.
● Cisco Prime Network Registrar 11.4 has been tested with Red Hat Enterprise Linux ES 8.10, AlmaLinux 8.10, RockyLinux 8.10, Red Hat Enterprise Linux ES 9.6, AlmaLinux 9.6, and Rocky Linux 9.6. End users are expected to apply patches and maintenance releases to keep their operating systems up to date with bug fixes and security patches. While Cisco does not expect these updates within the same major OS version to cause issues, it is strongly recommended to lab test any updates before applying them to production servers.
Warning:
Before upgrading the regional Cisco Prime Network Registrar to version 11.x, ensure that the local clusters are upgraded to version 10.1.1 or later. Do not upgrade the local clusters directly to version 11.0 (or later), as they will not be able to register with the regional version until it has also been upgraded to 11.0 (or later).
This release does not include any new hardware support for Cisco Prime Network Registrar 11.4
Command Line Interface Enhancements
The following are the commands that have been added in smart mode:
· license smart support ca_bundle download
· license smart support ca_bundle show_summary
For more information, see Cisco Prime Network Registrar 11.4 CLI Reference Guide.
Product documentation
You can also access documentation for all Cisco Prime Network Registrar at https://www.cisco.com/c/en/us/support/cloud-systems-management/prime-network-registrar/series.html
Table 4. Cisco prime Network Registrar 11.4 documentation
| Document |
Description |
| Provides information about getting started with Cisco Prime Network Registrar and enabling core services such as DHCP, DNS, CDNS, DNS Update, and TFTP. |
|
| Provides information on installation, setup, upgrade, and initial configuration of Cisco Prime Network Registrar and its virtual appliance. |
|
| Provides information about concepts and configuration details, including local and regional administration, and managing the Cisco Prime Network Registrar virtual appliance. |
|
| Cisco Prime Network Registrar 11.4 Caching and Authoritative DNS User Guide |
Managing Caching DNS server and Authoritative DNS server |
| Managing DHCP addresses, DHCP failover, and DNS update |
|
| CLI commands that are supported by Cisco Prime Network Registrar |
|
| Cisco Prime Network Registrar 11.4 REST APIs Reference Guide |
REST APIs that are supported by Cisco Prime Network Registrar |
| Cisco Prime Network Registrar 11.4 REST APIs Quick Start Guide |
REST methods and endpoints to use to get information about the most used objects in Cisco Prime Network Registrar |
| Cisco Prime Network Registrar 11.4 Third Party and Open-Source Copyrights |
Lists of licenses and notices for open-source software |
| List of Cisco Prime Network Registrar 11.4 user documents |
|
| Overview of how to use Cisco licensing |
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