topic Unicast vs. Broadcast in MQX Software Solutions https://community.nxp.com/t5/MQX-Software-Solutions/Unicast-vs-Broadcast/m-p/257818#M7594 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>If we bind to an IP of INADDR_ANY, is there a way to determine if the destination IP (of a UDP datagram) was a unicast or a broadcast?</P><P></P><P>My current solution is to open 2 sockets, one bound to the specific IP and one bound to INADDR_ANY. I can wait on both sockets and recv() from the appropriate one. However, this doubles my memory requirement and makes it more painful to add DHCP capabilities to the product.</P><P></P><P>Does anyone have a solution with a single socket? I don't mind tinkering or implementing a custom "get dest IP" function.</P><P></P><P>Also any tips on doing dhcp when binding to a specific IP and not INADDR_ANY would be welcome...</P><P></P><P></P><P>Cheers,</P><P>+Joel.</P></BODY></HTML> Thu, 15 Aug 2013 21:54:29 GMT theJoel 2013-08-15T21:54:29Z Unicast vs. Broadcast https://community.nxp.com/t5/MQX-Software-Solutions/Unicast-vs-Broadcast/m-p/257818#M7594 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>If we bind to an IP of INADDR_ANY, is there a way to determine if the destination IP (of a UDP datagram) was a unicast or a broadcast?</P><P></P><P>My current solution is to open 2 sockets, one bound to the specific IP and one bound to INADDR_ANY. I can wait on both sockets and recv() from the appropriate one. However, this doubles my memory requirement and makes it more painful to add DHCP capabilities to the product.</P><P></P><P>Does anyone have a solution with a single socket? I don't mind tinkering or implementing a custom "get dest IP" function.</P><P></P><P>Also any tips on doing dhcp when binding to a specific IP and not INADDR_ANY would be welcome...</P><P></P><P></P><P>Cheers,</P><P>+Joel.</P></BODY></HTML> Thu, 15 Aug 2013 21:54:29 GMT https://community.nxp.com/t5/MQX-Software-Solutions/Unicast-vs-Broadcast/m-p/257818#M7594 theJoel 2013-08-15T21:54:29Z