}
}
- /* default interface name */
- if (!conn->ifName)
- conn->ifName = xstrdup("eth0");
+ if (!conn->ifName) {
+ fprintf(stderr, "Interface was not specified\n");
+ exit(EXIT_FAILURE);
+ }
conn->sessionSocket = -1;
{
fprintf(stderr, "Usage: pppoe-discovery [options]\n");
fprintf(stderr, "Options:\n");
- fprintf(stderr, " -I if_name -- Specify interface (default eth0)\n");
+ fprintf(stderr, " -I if_name -- Specify interface (mandatory option)\n");
fprintf(stderr, " -D filename -- Log debugging information in filename.\n");
fprintf(stderr,
" -t timeout -- Initial timeout for discovery packets in seconds\n"