How to setup a tftp server with IPV6

I want to setup a IPV6 PXE server, But I cannot set it successful with the tftp server.
who can tell me how to setup a IPV6 PXE server with under Ubuntu 12.04.

Here a couple of nice tutorials

http://www.howtoforge.com/ubuntu_pxe_install_server
https://linuxlink.timesys.com/docs/linux_tftp

Let me know more details, I did that several years ago, maybe I can help you.

I want to test a server IPV6 net boot function, so I need setup an IPV6 PXE server. please see my configuration:

1. Install Xinetd and tftpd.
apt-get install xinetd tftpd

2. config tftp server
vim /etc/xinetd.d/tftp
service tftp
{
protocol = udp
socket_type = dgram
wait = yes
flags = IPV6 IPv4
user = root
server = /usr/sbin/in.tftpd
server_args = -s /srv/tftp
disable = no
}

3. config DHCP6 server
option dhcp6.name-servers 2000::1;
option dhcp6.bootfile-url code 59 = string ;

subnet6 2000:0:0:0::/64 {
option dhcp6.bootfile-url "tftp://[2000::1]/bootx64.efi";
range6 2000:0:0:0::100 2000:0:0:0::2000;
range6 2000:0:0:0:: temporary;
prefix6 2000:0:0:0:: 2000:0:0:0:: /64;
}

4. copy bootx64.efi and to /srv/tftp and config elilo.conf

5. restart the xinetd and dhcpd6 server

service xinetd restart
server isc-dhcp-server6 restart

6. clinet test result:
http://ubuntuforums.org/attachment.p...1&d=1354601104

PS: IPv4 PXE can boot successfully.