DHCP IPv6 not Working!!

danny itza · ‎06-24-2011

Hi all, I am trying to set up a DHCP Ipv6 server, but when I connect my machine to the network My machine is not getting and IPv6 address neither the DNS address. If I statically configure an Ipv6 address on my machine I am able to ping my default Gateway “2800:410:3082:1::1” and go to the Internet it works fine with static, but I want it the Ipv6 address be assigned by DHCP.

Can anyone please assist me, thanks advance for your help.. This is the configuration I am Using,,

Danny

Router#sho ver

Cisco IOS Software, 3800 Software (C3845-ADVIPSERVICESK9-M), Version 12.4(11)XW10, RELEASE SOFTWARE (fc2)

Technical Support: http://www.cisco.com/techsupport

Compiled Thu 05-Feb-09 22:10 by prod_rel_team

ROM: System Bootstrap, Version 12.4(13r)T10, RELEASE SOFTWARE (fc1)

Router uptime is 6 minutes

System returned to ROM by reload at 18:08:45 UTC Fri Jun 24 2011

System image file is "flash:c3845-advipservicesk9-mz.124-11.XW10.bin"

http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to

export@cisco.com.

Cisco 3845 (revision 1.0) with 222208K/39936K bytes of memory.

Processor board ID FTX1302A34G

2 Gigabit Ethernet interfaces

1 Virtual Private Network (VPN) Module

DRAM configuration is 64 bits wide with parity enabled.

479K bytes of NVRAM.

62720K bytes of ATA System CompactFlash (Read/Write)

Configuration register is 0x2102

!

ipv6 dhcp pool IPV6_1

prefix-delegation pool pool1 lifetime 1800 600

dns-server 2001:470:20::2

domain-name btl.net

!

ipv6 dhcp pool IPV6_2

prefix-delegation pool pool2 lifetime 1800 600

dns-server 2001:470:20::2

domain-name btl.net

!

multilink bundle-name authenticated

!

voice-card 0

no dspfarm

!

archive

log config

hidekeys

!

interface GigabitEthernet0/0

description --To 7609 MPE1_ON PORT 3/3--

no ip address

duplex full

speed auto

media-type sfp

ipv6 address FDDF:1:1:1000::/64 eui-64

ipv6 enable

!

interface GigabitEthernet0/1

no ip address

duplex full

speed auto

media-type rj45

ipv6 enable

!

interface GigabitEthernet0/1.998

description **To Customers**

encapsulation dot1Q 998

pppoe enable group global

ipv6 address 2800:410:3082:1::1/64

ipv6 enable

ipv6 nd managed-config-flag

ipv6 nd other-config-flag

ipv6 dhcp server IPV6_1

!

!!

ip http server

no ip http secure-server

!

ipv6 route ::/0 FDDF:1:1:1000:C671:FEFF:FE02:8D40

ipv6 local pool pool1 2800:410:3082:1::/64 64

ipv6 local pool pool2 2800:410:3082:2::/64 64

Nagendra Kumar Nainar · ‎06-25-2011

Hi Danny,

You seems to have only nebaled PD under DHCP pool on the server. Per my understanding, this will only provide PD prefix requested by Client and not the address as such.

Can you add "address prefix /" as below,

ipv6 dhcp pool IPV6_1

prefix-delegation pool pool1 lifetime 1800 600

address prefix 2800:410:3082:1::/64

dns-server 2001:470:20::2

domain-name btl.net

!

HTH,

Nagendra

danny itza · ‎06-28-2011

I already tried that, when I go in Router(config)#ipv6 dhcp pool IPV6_1 I do not have an option to configure the

address prefix 2800:410:3082:1::/64,

This are the option I get under Router(config)#ipv6 dhcp pool IPV6_1

Router(config)#ipv6 dhcp pool IPV6_1

Router(config-dhcp)#?

IPv6 DHCP configuration commands:

default Set a command to its defaults

dns-server DNS servers

domain-name Domain name to complete unqualified host names

exit Exit from DHCPv6 configuration mode

import Import options

information Information refresh option

nis NIS server options

nisp NISP server options

no Negate a command or set its defaults

prefix-delegation IPv6 prefix delegation

sip SIP server options

sntp SNTP server options

I was reading on " ipv6 local pool" , But I don't know if that option can assign machines IPv6 and Dns addresses automatically by DHCP?????

I tried 2 other IOS that support IPv6 and both of them Including the one I am using dont give me the option to configure "address prefix 2800:410:3082:1::/64" under "ipv6 dhcp pool IPV6_1",

Is thier a differnt way of configuring a DHCP server for IPV6??? Any other suggestions are highly appreciated,

thanks for your help

Regards,

danny