title: stm32 lwip - unable to respond to ping
body: <p>I am trying to configure the minimum I can to get my Nucleo-F429ZI to respond to a ping</p>
  
  <p>Using CubeMX, I enable ethernet in MII mode and assign a unique MAC address.</p>
  
  <p>In Middleware I enable LwIP (no RTOS, no DHCP) I set an IP of 192.168.1.55, 255.255.255.0, 192.168.1.1. </p>
  
  <p>I enable ICMP, UDP and TCP.</p>
  
  <p>I build in TrueStudio and run, but no response to a ping from my linux box on the same network.</p>
  
  <p>In main.c I see 
  MX_LWIP_Init();  which call lwip_init() with the address mask and gw I configured.</p>
  
  <p>In lwip.c 
  I see my IP, mask and gw initialized correctly followed by lwip_init();</p>
  
  <p>I try to ping from my linux box (same network) but get "host not found"</p>
  
  <p>What am I missing???</p>