I tried defining DNS_CLIENT_UPDT, but the compiler returned several warnings and an error when compiling IP_DNSC.c: Error: 'dns_servers' is undeclared - I assume this is an array of DNS IP addresses, not 100% sure Warning: implicit declaration of 'MEMCPY' - will lead to link error, probably needs to be change to IP_MEMCPY Warning: impicit declaration of 'tk_yield' (a holdover from interniche) - will lead to link error, probably needs to be changed to OS_Yield Warning: 'getsoa' declared static bu…