1 files changed, 1 insertions, 0 deletions

diff --git a/src/fnet/interface.c b/src/fnet/interface.c
index 67af062bf..046b2c972 100644
--- a/src/fnet/interface.c
+++ b/src/fnet/interface.c
@@ -284,6 +284,7 @@ void net_if_ip(const char *ifname, uint32_t ip, uint32_t mask, int mtu) {
         ((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr.s_addr = htonl(ip);
         if (ioctl( sock, SIOCSIFADDR, &ifr ) < 0) {
                 close(sock);
+                fprintf(stderr, "Error fnet: cannot find interface %s\n", ifname);
                 errExit("ioctl");
         }