| .. _dns_resolve_interface: |
| |
| DNS Resolve |
| ########### |
| |
| .. contents:: |
| :local: |
| :depth: 2 |
| |
| Overview |
| ******** |
| |
| The DNS resolver implements a basic DNS resolver according |
| to `IETF RFC1035 on Domain Implementation and Specification <https://tools.ietf.org/html/rfc1035>`_. |
| Supported DNS answers are IPv4/IPv6 addresses and CNAME. |
| |
| If a CNAME is received, the DNS resolver will create another DNS query. |
| The number of additional queries is controlled by the |
| :option:`CONFIG_DNS_RESOLVER_ADDITIONAL_QUERIES` Kconfig variable. |
| |
| The multicast DNS (mDNS) client resolver support can be enabled by setting |
| :option:`CONFIG_MDNS_RESOLVER` Kconfig option. |
| See `IETF RFC6762 <https://tools.ietf.org/html/rfc6762>`_ for more details |
| about mDNS. |
| |
| The link-local multicast name resolution (LLMNR) client resolver support can be |
| enabled by setting the :option:`CONFIG_LLMNR_RESOLVER` Kconfig variable. |
| See `IETF RFC4795 <https://tools.ietf.org/html/rfc4795>`_ for more details |
| about LLMNR. |
| |
| For more information about DNS configuration variables, see: |
| :zephyr_file:`subsys/net/lib/dns/Kconfig`. The DNS resolver API can be found at |
| :zephyr_file:`include/net/dns_resolve.h`. |
| |
| Sample usage |
| ************ |
| |
| See :ref:`DNS resolve sample application <dns-resolve-sample>` for details. |
| |
| API Reference |
| ************* |
| |
| .. doxygengroup:: dns_resolve |
| :project: Zephyr |
