Reconfigure and restart FreeRTOS-TCP

Kernel
2

heinbali01 wrote on Saturday, May 25, 2019:

Hi Andy,

I’m sure that you have seen the DHCP application hook:

#if( ipconfigUSE_DHCP_HOOK != 0 )
    eDHCPCallbackAnswer_t xApplicationDHCPHook( eDHCPCallbackPhase_t ePhase, uint32_t ulIPAddress )
    {
    }
#endif

With this hook, you can instruct the DHCP module to either stop or continue the negotiation.

FreeRTOS_IPInit() can be called only once because it creates a queue and it starts the IP-task.

I’m afraid there is no way to re-initialise the IP-stack, other than a reset of the CPU.

If there is only a small change, like the assigning a new IP-address and netmask, and provided that there are no open sockets, you might not need to reboot.