- IPv6 Addressing and Basic Connectivity
- IPv6 Anycast Address
- IPv6 Switching: Cisco Express Forwarding and Distributed Cisco Express Forwarding Support
- Unicast Reverse Path Forwarding for IPv6
- IPv6 Services: AAAA DNS Lookups over an IPv4 Transport
- IPv6 MTU Path Discovery
- ICMP for IPv6
- IPv6 ICMP Rate Limiting
- ICMP for IPv6 Redirect
- IPv6 Neighbor Discovery
- IPv6 Neighbor Discovery Cache
- IPv6 Default Router Preference
- IPv6 Stateless Autoconfiguration
- IPv6 RFCs
IPv6 Services: AAAA DNS Lookups over an IPv4 Transport
IPv6 basic connectivity can be enhanced by configuring support for AAAA record types in the DNS name-to-address and address-to-name lookup processes.
- Finding Feature Information
- Information About IPv6 Services: AAAA DNS Lookups over an IPv4 Transport
- Additional References
- Feature Information for IPv6 Services: AAAA DNS Lookups over an IPv4 Transport
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the Feature Information Table at the end of this document.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Information About IPv6 Services: AAAA DNS Lookups over an IPv4 Transport
DNS for IPv6
IPv6 supports DNS record types that are supported in the DNS name-to-address and address-to-name lookup processes. The DNS record types support IPv6 addresses. IPv6 also supports the reverse mapping of IPv6 addresses to DNS names.
The table below lists the IPv6 DNS record types.
Additional References
Related Documents
Related Topic |
Document Title |
|---|---|
| IPv6 addressing and connectivity |
IPv6 Configuration Guide |
| IPv4 services configuration |
IP Application Services Configuration Guide |
| Cisco IOS commands |
|
| IPv6 commands |
Cisco IOS IPv6 Command Reference |
| Cisco IOS IPv6 features |
Standards and RFCs
Standard/RFC |
Title |
|---|---|
| RFCs for IPv6 |
IPv6 RFCs |
MIBs
| MIB |
MIBs Link |
|---|---|
| None. |
To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL: |
Technical Assistance
Description |
Link |
|---|---|
| The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Support and Documentation website requires a Cisco.com user ID and password. |
Feature Information for IPv6 Services: AAAA DNS Lookups over an IPv4 Transport
The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Feature Name |
Releases |
Feature Information |
|---|---|---|
| IPv6 Services: AAAA DNS Lookups over an IPv4 Transport |
12.2(2)T 12.2(25)SEA 12.2(25)SG 12.2(33)SRA 12.2(17a)SX1 15.0(2)SG 15.3(1)S Cisco IOS XE Release 2.1 3.2.0SG |
IPv6 basic connectivity can be enhanced by configuring support for AAAA record types in the DNS name-to-address and address-to-name lookup processes. No commands were introduced or modified. |
| IPv6 Services: DNS Lookups over an IPv6 Transport |
12.2(8)T 12.2(25)SED 12.2(25)SG 12.2(33)SRA 12.2(17a)SX1 15.0(2)SG 15.3(1)S Cisco IOS XE Release 2.1 3.2.0SG |
IPv6 supports this feature. No commands were introduced or modified. In Cisco IOS XE Release 3.8S, support was added for the Cisco ISR 4400 Series Routers. In Cisco IOS XE Release 3.9S, support was added for the Cisco CSR 1000V. |
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