All dogs within the City of Lebanon shall be restrained from running at large. A dog shall be deemed to be restrained from running at large when it is kept upon the property of its owner and keeper, or is kept within an enclosure on the property of its owner or keeper, or is kept on a leash. A dog is not restrained if, when tied, it is able to reach another’s property or any public domain. Hunting dogs in training and/or pursuing legal game shall not come under the provisions of this article.