1 files changed, 4 insertions, 3 deletions

diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c
index 66aa38c20..922c71ebd 100644
--- a/networking/udhcp/dhcpc.c
+++ b/networking/udhcp/dhcpc.c
@@ -702,7 +702,8 @@ static int bcast_or_ucast(struct dhcp_packet *packet, uint32_t ciaddr, uint32_t
         if (server)
                 return udhcp_send_kernel_packet(packet,
                         ciaddr, CLIENT_PORT,
-                        server, SERVER_PORT);
+                        server, SERVER_PORT,
+                        client_data.interface);
         return raw_bcast_from_client_data_ifindex(packet, ciaddr);
 }
 
@@ -1195,7 +1196,7 @@ static void client_background(void)
 //usage:       "        [-i IFACE]"IF_FEATURE_UDHCP_PORT(" [-P PORT]")" [-s PROG] [-p PIDFILE]\n"
 //usage:       "        [-oC] [-r IP] [-V VENDOR] [-F NAME] [-x OPT:VAL]... [-O OPT]..."
 //usage:#define udhcpc_full_usage "\n"
-//usage:     "\n        -i IFACE        Interface to use (default eth0)"
+//usage:     "\n        -i IFACE        Interface to use (default "CONFIG_UDHCPC_DEFAULT_INTERFACE")"
 //usage:        IF_FEATURE_UDHCP_PORT(
 //usage:     "\n        -P PORT         Use PORT (default 68)"
 //usage:        )
@@ -1264,7 +1265,7 @@ int udhcpc_main(int argc UNUSED_PARAM, char **argv)
         /* Default options */
         IF_FEATURE_UDHCP_PORT(SERVER_PORT = 67;)
         IF_FEATURE_UDHCP_PORT(CLIENT_PORT = 68;)
-        client_data.interface = "eth0";
+        client_data.interface = CONFIG_UDHCPC_DEFAULT_INTERFACE;
         client_data.script = CONFIG_UDHCPC_DEFAULT_SCRIPT;
         client_data.sockfd = -1;
         str_V = "udhcp "BB_VER;