Latest revision as of 13:21, 21 November 2014

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 unicast-routing
ipv6 cef
ipv6 dhcp pool HOMEBOX
 dns-server 2001:4860:4860::8888
 dns-server 2001:4860:4860::8844
 domain-name homebox.local

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

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>

All Routers must have IPv6 Multicast Routing enabled.

PE2(config)#<input>ipv6 multicast-routing</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

@@ Line 1: / Line 1: @@
 {{In progress}}
 This article will be written when the author gets experience using DHCPv6. (Hopefully shortly :-)
+{{TOCright}}
+=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
+<source lang=cli>
+ipv6 multicast-routing
+</source>
+=DHCPv6 other-config-flag=
+Node will autoconfigure its IPv6 address using [[Stateless Autoconfiguration IPv6 Cisco IOS|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.
+<source lang=cli>
+ipv6 unicast-routing
+ipv6 cef
+ipv6 dhcp pool HOMEBOX
+ dns-server 2001:4860:4860::8888
+ dns-server 2001:4860:4860::8844
+ domain-name homebox.local
+!
+interface FastEthernet0/1
+ ipv6 address 2001:16D8:DD85:B000::1/64
+ ipv6 enable
+ ipv6 nd other-config-flag
+ ipv6 dhcp server HOMEBOX
+!
+</source>
 =DHCPv6 Relay agent=
 ==On local link==
 <source lang=cli>
 R1(config)#<input>interface fastethernet 0/0</input>
-R1(config-if)# <input>ipv6 dhcp relay destination FE80::250:A2FF:FEBF:A056 fastethernet0/1</input>
+R1(config-if)#<input>ipv6 dhcp relay destination FE80::250:A2FF:FEBF:A056 fastethernet0/1</input>
 </source>
 ==To global unicast==
 <source lang=cli>
 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 destination 2001:16D8:DD85:146::2</input>
+R1(config-if)#<input>ipv6 dhcp relay source-interface loopback 0</input>
 </source>
 ==To Multicast All Site Local DHCPv6 servers==
 <source lang=cli>
 R1(config)#<input>interface fastethernet 0/0</input>
-R1(config-if)# <input>ipv6 dhcp relay destination FF05::1:3</input>
+R1(config-if)#<input>ipv6 dhcp relay destination FF05::1:3</input>
+</source>
+All Routers must have IPv6 Multicast Routing enabled.
+<source lang=cli>
+PE2(config)#<input>ipv6 multicast-routing</input>
 </source>
+==Troubleshooting==
+<source lang=cli>
+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
+</source>
 *See [http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-dhcp_ps6441_TSD_Products_Configuration_Guide_Chapter.html http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-dhcp_ps6441_TSD_Products_Configuration_Guide_Chapter.html]
 *See [http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-dhcp.html#wp1054443 Cisco DHCPv6 configuration guide]
+{{Source cli}}
 [[Category:IPv6]][[Category:CiscoIPv6]][[Category:IOS]]

Navigation menu

Difference between revisions of "DHCPv6 Cisco IOS"