[c-nsp] IPv6 Stateful DHCP on ISR 880

[Juan Mario Duenas Preciado]

Hi everybody,

I'm trying to set up a stateful DHCPv6 server in a cisco ISR 880 with an
IOS c880data-universalk9-mz.151-2.T4.bin but I'm having some issues.

The router have to give IPv6 addresses just like a DHCPv4 do in its VLAN2
interface using the 2801:C4:10:3012:0:1::/96 prefix (I'm was not able to
use /64 prefixes because I'm subnetting for a big number of sites).

These are the lines for DHCPv6 that I'm using for the DHCP server:

ipv6 unicast-routing
ipv6 cef
ipv6 dhcp database USUARIOSv6
ipv6 dhcp pool DATOS
 address prefix 2801:C4:10:3012:0:1::/96 lifetime 3600 3500
 link-address FE80::C664:13FF:FEEA:5BAC/12
 dns-server FEC0::1
 domain-name this.is.a.test
 information refresh 7
!
interface Vlan2
ipv6 address 2801:C4:10:3012:0:1:0:1/96
 ipv6 enable
 no ipv6 redirects
 no ipv6 unreachables
 ipv6 dhcp server DATOS


Now, when I use my Windows 7 client to request an IPv6 address nothing
happens but when I use my Linux client it works but it says that it
received a /64 prefix (more exactly the 2801:C4:10:3012:0:1:FC44:7E8C/64
address)

Could anyone give a hint on where am I wrong? or at least to share an
experience about using IPv6 stateful DHCP?

Thanks in advance, greetings!

-- 
Mario D. P.