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WHAT'S NEW
Simplifying Authenticated Cloud Connectivity for Any Device.
How Wi-Fi and Cellular connectivity modules with ExpressLink can help create secure cloud connected devices. See the blog post.
Designing an energy efficient and cloud-connected IoT solution with CoAP.
A client/server, request/response, UDP-based protocol for efficiency and cloud compatibility. See the blog post.
Introducing FreeRTOS Kernel version 11.0.0:
A Major Release with Symmetric Multiprocessing (SMP) Support. See the blog post.
FreeRTOS Roadmap and Code Contribution process.
The FreeRTOS roadmap and code contribution process are now published here and on GitHub. See the blog post.
OPC-UA over TSN with FreeRTOS.
A development project to give applications consistent access to hardware TSN capabilities. See the blog post.

DHCPv6

DHCPv6 stands for Dynamic Host Configuration Protocol version 6.

DHCPv6 provides an alternative to static IPv6 address assignment as well as IPv6 address assignment via RA.

If ipconfigUSE_DHCPv6 is set to 1 in FreeRTOSIPConfig.h and if the bWantDHCP bit in the bits field of the endpoint structure is set during the endpoint initialisation, then FreeRTOS-Plus-TCP will attempt to obtain the endpoint's IP address from a DHCPv6 server, and only revert to using a static IP address if a DHCPv6 server cannot be contacted.

Expert users can influence the DHCP process using an application DHCP hook (or 'callback') function.

Below is an example endpoint initialisation that enables DHCPv6: 

IPv6_Address_t xIPAddress;

IPv6_Address_t xPrefix;

IPv6_Address_t xGateWay;

IPv6_Address_t xDNSServer1, xDNSServer2;



FreeRTOS_inet_pton6( "2001:470:ed44::", xPrefix.ucBytes );



FreeRTOS_CreateIPv6Address( &xIPAddress, &xPrefix, 64, pdTRUE );

FreeRTOS_inet_pton6( "fe80::ba27:ebff:fe5a:d751", xGateWay.ucBytes );



FreeRTOS_FillEndPoint_IPv6( &( xInterfaces[ 0 ] ),

                            &( xEndPoints[ xEndPointCount ] ),

                            &( xIPAddress ),

                            &( xPrefix ),

                            64uL, /* Prefix length. */

                            &( xGateWay ),

                            NULL, /* pxDNSServerAddress: Not used yet. */

                            ucMACAddress );

FreeRTOS_inet_pton6( "2001:4860:4860::8888", xEndPoints[ xEndPointCount ].ipv6_settings.xDNSServerAddresses[ 0 ].ucBytes );

FreeRTOS_inet_pton6( "fe80::1", xEndPoints[ xEndPointCount ].ipv6_settings.xDNSServerAddresses[ 1 ].ucBytes );

FreeRTOS_inet_pton6( "2001:4860:4860::8888", xEndPoints[ xEndPointCount ].ipv6_defaults.xDNSServerAddresses[ 0 ].ucBytes );

FreeRTOS_inet_pton6( "fe80::1", xEndPoints[ xEndPointCount ].ipv6_defaults.xDNSServerAddresses[ 1 ].ucBytes );





#if ( ipconfigUSE_DHCPv6 != 0 )

    {

        /* End-point wants to use DHCPv6. */

        xEndPoints[ xEndPointCount ].bits.bWantDHCP = pdTRUE;

    }

#endif /* ( ipconfigUSE_DHCPv6 != 0 ) */
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