Binary package “atftpd” in ubuntu xenial

advanced TFTP server

 Multi-threaded TFTP server implementing all options (option extension and
 multicast) as specified in RFC1350, RFC2090, RFC2347, RFC2348 and RFC2349.
 Atftpd also supports multicast protocol known as mtftp, defined in the PXE
 specification. The server supports being started from inetd(8) as well as
 in daemon mode using init scripts.