DL_X25
{ DL_X25, "X.25" },
{ DL_X25, "X.25 (LAPB)" },
{ ARPHRD_AX25, DL_X25 },
{ DL_X25, DLT_NULL, 0 }, /* X.25 LAPB interface */
case DL_X25: return ("X.25 (LAPB)");