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IPv6 Prefix 0.0.0.0

naveen_yummy
Level 1
Level 1

Hi Guys,

I am just new to IPv6 and tried to test in the packet tracer. I configured the IPv6 pool, interface configuration on the router and then at the client end getting the dns server & domain name only. IPv6 address not coming up. Can you check the below configuration and debug results what is missing?


Configurations:

ip cef
ipv6 unicast-routing
!
ipv6 dhcp pool Lan1
 address prefix 2222:222:22::/64 lifetime 172800 86400
 dns-server 2222:222:22::10
 domain-name test.test

interface GigabitEthernet0/0
 no ip address
 duplex auto
 speed auto
 ipv6 address 3333:333::1/64
 ipv6 nd managed-config-flag
 ipv6 dhcp server Lan1

DHCP#sh ipv6 dhcp pool
DHCPv6 pool: Lan1
  Address allocation prefix: 2222:222:22::/64 valid 172800 preferred 86400 (0 in use, 0 conflicts)
  DNS server: 2222:222:22::10
  Domain name: test.test
  Active clients: 0

Debug Output:

*Mar 1 00:45:23.292: IPv6 DHCP: Received REQUEST from FE80::290:21FF:FE82:36E6 on GigabitEthernet0/0
*Mar 1 00:45:23.292: IPv6 DHCP: detailed packet contents
*Mar 1 00:45:23.292:   src FE80::290:21FF:FE82:36E6 (GigabitEthernet0/0)
*Mar 1 00:45:23.292:   dst FE80::201:63FF:FE66:D501 (GigabitEthernet0/0)
*Mar 1 00:45:23.292:   type REQUEST(3), xid 11
*Mar 1 00:45:23.292:   option ELAPSED-TIME(8), len 6
*Mar 1 00:45:23.292:     elapsed-time 0
*Mar 1 00:45:23.292:   option SERVERID(2), len 24
*Mar 1 00:45:23.292:     0003000100016366D501
*Mar 1 00:45:23.292:   option CLIENTID(1), len 45
*Mar 1 00:45:23.292:     00-01-00-01-A4-E0-CB-39-00-90-21-82-36-E6
*Mar 1 00:45:23.292:   option ORO(6), len 10
*Mar 1 00:45:23.292:     IA-PD, DNS-SERVERS, DOMAIN-LIST
*Mar 1 00:45:23.292:   option IA-PD(25), len 45
*Mar 1 00:45:23.292:     IAID 0x8045, T1 0, T2 0
*Mar 1 00:45:23.292:     option IAPREFIX(26), len 29
*Mar 1 00:45:23.292:       preferred 0, valid 0, prefix 0.0.0.0/0
*Mar 1 00:45:23.292: IPv6 DHCP: Using interface pool Lan1
*Mar 1 00:45:23.292: IPv6 DHCP: Creating binding for FE80::290:21FF:FE82:36E6 in pool Lan1
*Mar 1 00:45:23.292: IPv6 DHCP: Allocating IA_PD 8045 in binding for FE80::290:21FF:FE82:36E6
*Mar 1 00:45:23.292: IPv6 DHCP: Allocating prefix 0.0.0.0/0 in binding for FE80::290:21FF:FE82:36E6, IAID 8045

*Mar 1 00:45:23.292: IPv6 DHCP: Sending REPLY to FE80::290:21FF:FE82:36E6 on GigabitEthernet0/0
*Mar 1 00:45:23.292: IPv6 DHCP: detailed packet contents
*Mar 1 00:45:23.292:   src FE80::201:63FF:FE66:D501 (GigabitEthernet0/0)
*Mar 1 00:45:23.292:   dst FE80::290:21FF:FE82:36E6 (GigabitEthernet0/0)
*Mar 1 00:45:23.292:   type REPLY(7), xid 11
*Mar 1 00:45:23.292:   option SERVERID(2), len 24
*Mar 1 00:45:23.292:     0003000100016366D501
*Mar 1 00:45:23.292:   option CLIENTID(1), len 45
*Mar 1 00:45:23.292:     00-01-00-01-A4-E0-CB-39-00-90-21-82-36-E6
*Mar 1 00:45:23.292:   option IA-PD(25), len 41
*Mar 1 00:45:23.292:     IAID 0x8045, T1 0, T2 0
*Mar 1 00:45:23.292:     option IAPREFIX(26), len 29
*Mar 1 00:45:23.292:       preferred 0, valid 0, prefix 0.0.0.0/0
*Mar 1 00:45:23.292:   option DNS-SERVERS(23), len 20
*Mar 1 00:45:23.292:     2222:222:22::10
*Mar 1 00:45:23.292:   option DOMAIN-LIST(24), len 5
*Mar 1 00:45:23.292:     test.test

3 Replies 3

Harold Ritter
Level 12
Level 12

The client is asking for a prefix delegation (PD) rather than just an address. What is the client?

 

Regards,

Harold Ritter
Sr Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México

Right now i am testing on the Packet tracer. Client machine is Desktop.

Also i tried with changing the IPv6 address of interface from 2222.222.xxx range still same result.

Hi Naveen,

 

Can you please share the DHCPv6 configuration of the client.

 

Regards,

 

Harold Ritter
Sr Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México

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