diff --git a/net/uip/uip-arp.c b/net/uip/uip-arp.c index 49bb248790..7a0498c22b 100644 --- a/net/uip/uip-arp.c +++ b/net/uip/uip-arp.c @@ -487,7 +487,7 @@ void uip_arp_out(struct uip_driver_s *dev) ETHBUF->type = HTONS(UIP_ETHTYPE_ARP); dev->d_appdata = &dev->d_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN]; - dev->d_len = sizeof(struct arp_hdr); + dev->d_len = sizeof(struct arp_hdr) + UIP_LLH_LEN; return; } @@ -495,9 +495,10 @@ void uip_arp_out(struct uip_driver_s *dev) memcpy(ETHBUF->dest, tabptr->at_ethaddr.addr, IFHWADDRLEN); } + + /* Finish populating the ethernet header */ + memcpy(ETHBUF->src, dev->d_mac.addr, IFHWADDRLEN); - ETHBUF->type = HTONS(UIP_ETHTYPE_IP); - - dev->d_len += sizeof(struct uip_eth_hdr); + dev->d_len += UIP_LLH_LEN; }