Difference between revisions of "DHCPv6 Cisco IOS"

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{{In progress}}
 
This article will be written when the author gets experience using DHCPv6. (Hopefully shortly :-)
 
This article will be written when the author gets experience using DHCPv6. (Hopefully shortly :-)
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{{TOCright}}
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=DHCPv6 multicast=
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*Local link DHCPv6 multicast  FF02::1:2
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*Entire site DHCPv6 multicast FF05::1:3
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;NOTE:When using entire site multicast remember to enable ipv6 multicast routing
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<source lang=cli>
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ipv6 multicast-routing
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</source>
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=DHCPv6 other-config-flag=
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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.
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<source lang=cli>
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ipv6 unicast-routing
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ipv6 cef
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ipv6 dhcp pool HOMEBOX
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dns-server 2001:4860:4860::8888
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dns-server 2001:4860:4860::8844
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domain-name homebox.local
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!
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interface FastEthernet0/1
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ipv6 address 2001:16D8:DD85:B000::1/64
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ipv6 enable
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ipv6 nd other-config-flag
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ipv6 dhcp server HOMEBOX
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!
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</source>
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=DHCPv6 Relay agent=
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==On local link==
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<source lang=cli>
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R1(config)#<input>interface fastethernet 0/0</input>
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R1(config-if)#<input>ipv6 dhcp relay destination FE80::250:A2FF:FEBF:A056 fastethernet0/1</input>
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</source>
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==To global unicast==
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<source lang=cli>
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R1(config)#<input>interface fastethernet 0/0</input>
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R1(config-if)#<input>ipv6 dhcp relay destination 2001:16D8:DD85:146::2</input>
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R1(config-if)#<input>ipv6 dhcp relay source-interface loopback 0</input>
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</source>
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==To Multicast All Site Local DHCPv6 servers==
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<source lang=cli>
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R1(config)#<input>interface fastethernet 0/0</input>
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R1(config-if)#<input>ipv6 dhcp relay destination FF05::1:3</input>
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</source>
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All Routers must have IPv6 Multicast Routing enabled.
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<source lang=cli>
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PE2(config)#<input>ipv6 multicast-routing</input>
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</source>
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==Troubleshooting==
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<source lang=cli>
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R1#<input>show ipv6 dhcp pool ROOM308</input>
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DHCPv6 pool: ROOM308
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  DNS server: 2001:16D8:DD85:B000:20C:29FF:FE84:CC63
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  Active clients: 0
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R1#<input>terminal monitor</input>
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R1#<input>debug ipv6 dhcp database ?</input>
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  IPv6 DHCP database debugging is on
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</source>
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*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]
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*See [http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-dhcp.html#wp1054443 Cisco DHCPv6 configuration guide]
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{{Source cli}}
 
[[Category:IPv6]][[Category:CiscoIPv6]][[Category:IOS]]
 
[[Category:IPv6]][[Category:CiscoIPv6]][[Category:IOS]]

Latest revision as of 12:21, 21 November 2014

Kate.png 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