This article is under development....

This article will be written when the author gets experience using DHCPv6. (Hopefully shortly :-)

DHCPv6 multicast

Local link DHCPv6 multicast FF02::1:2
Entire site DHCPv6 multicast FF05::1:3

NOTE: When using entire site multicast remember to enable ipv6 multicast routing

ipv6 multicast-routing

DHCPv6 other-config-flag

Node will autoconfigure its IPv6 address using Stateless Autoconfiguration. The ipv6 nd other-config-flag teels the node to collect remaining setup from DHCPv6- in this case DNS-server IP and domain-name.

ipv6 dhcp pool ROOM308
 dns-server 2001:16D8:DD85:B000:20C:29FF:FE84:CC63
 domain-name netlab.tekkom.dk

!
interface FastEthernet0/1
 ipv6 address 2001:16D8:DD85:B000::1/64
 ipv6 enable
 ipv6 nd other-config-flag
 ipv6 dhcp server ROOM308
!

DHCPv6 Relay agent

On local link

R1(config)#<input>interface fastethernet 0/0</input>
R1(config-if)#<input>ipv6 dhcp relay destination FE80::250:A2FF:FEBF:A056 fastethernet0/1</input>

To global unicast

R1(config)#<input>interface fastethernet 0/0</input>
R1(config-if)#<input>ipv6 dhcp relay destination 2001:16D8:DD85:146::2</input>
R1(config-if)#<input>ipv6 dhcp relay source-interface loopback 0</input>

To Multicast All Site Local DHCPv6 servers

R1(config)#<input>interface fastethernet 0/0</input>
R1(config-if)#<input>ipv6 dhcp relay destination FF05::1:3</input>

Troubleshooting

R1#<input>show ipv6 dhcp pool ROOM308</input>
DHCPv6 pool: ROOM308
  DNS server: 2001:16D8:DD85:B000:20C:29FF:FE84:CC63
  Active clients: 0
R1#<input>terminal monitor</input>
R1#<input>debug ipv6 dhcp database ?</input>
   IPv6 DHCP database debugging is on

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DHCPv6 Cisco IOS