DHCPv6配置2
本帖最后由 huangyanzhao05 于 2011-4-9 12:23 编辑DHCPv6分配前缀的配置
R1#sho run
hostname R1
!
no ip domain lookup
ipv6 unicast-routing
ipv6 cef
ipv6 dhcp pool cisco--------------------------指定地址池cisco
prefix-delegation pool ciscopress------------地址池绑定创建的前缀池ciscopress(下面有配置前缀池ciscopress)
dns-server 1985::1---------------------------指定DNS Server地址
domain-name ciscopress.com-------------------指定域名
sip address 1985::1--------------------------指定sip Server
sip domain-name cisco.com--------------------指定sip域名
注：还有些information的选项，在这就不一一列出了（根据各个厂商的支持情况决定，可以？看喽）
interface GigabitEthernet1/0
no ip address
negotiation auto
ipv6 address 12::1/64
ipv6 enable
ipv6 dhcp server cisco----------------------这里同分配地址一样，接口使能server绑定地址池
ipv6 ospf 110 area 0
ipv6 local pool ciscopress 23::/60 64------------指定要分配的前缀池ciscopress
ipv6 router ospf 110
router-id 1.1.1.1
relay:
R2#sho run
hostname R2
!
no ip domain lookup
ipv6 unicast-routing
ipv6 cef
!
!
interface GigabitEthernet1/0
no ip address
negotiation auto
ipv6 address 12::2/64
ipv6 enable
ipv6 ospf 110 area 0
!
!
interface GigabitEthernet2/0
no ip address
negotiation auto
ipv6 address 23::2/64
ipv6 enable
ipv6 dhcp relay destination 12::1----------------relay配置只要指定server地址就可以了
这里要说明的是CISCO的destination可以指定组播地址，但要另配置组播路由
ipv6 ospf 110 area 0
!
6 router ospf 110
router-id 2.2.2.2
log-adjacency-changes
!
client:
R3#sho run
hostname R3
!
no ip domain lookup
ipv6 unicast-routing
ipv6 cef
!
interface GigabitEthernet1/0
no ip address
negotiation auto
ipv6 enable
ipv6 dhcp client pd prefix------------------------客户端用此命令获取server分配的前缀
ipv6 ospf 110 area 0
!
ipv6 router ospf 110
router-id 3.3.3.3
log-adjacency-changes
客户端查看获取前缀结果：
R3(config-if)#do sho ipv dh int g1/0
GigabitEthernet1/0 is in client mode
Prefix State is OPEN
Renew will be sent in 3d11h
Address State is REQUEST (0)
Retransmission timer expires in 00:00:00
List of known servers:
Reachable via address: FE80::C801:DFF:FED4:38
DUID: 00030001CA000DD40000
Preference: 0
Configuration parameters:
IA PD: IA ID 0x00040001, T1 302400, T2 483840
Prefix: 23::/64-------------------------------客户端获取的前缀
preferred lifetime 604800, valid lifetime 2592000
expires at May 08 2011 11:38 PM (2591977 seconds)
IA NA: IA ID 0x00040001, T1 0, T2 0
DNS server: 1985::1
Domain name: ciscopress.com
SIP DNS server: 1985::1
SIP Domain name: cisco.com----------------------客户端获得的一些information
Information refresh time: 0
Prefix name: prefix
Prefix Rapid-Commit: disabled
Address Rapid-Commit: disabled
Information Request:
思科上的InformationRequest需在Server接口上配置ipv6 nd other-config-flag
客户端接口需配置ipv6 address autoconfig获取information
由于relay暂不支持传递Information Request，所以我就在R2上实验了，现在它是一个申请dns等信息的客户端
R2(config-if)#do sho ipv dh int g1/0
GigabitEthernet1/0 is in client mode
Prefix State is IDLE (0)
Information refresh timer expires in 23:59:53-----在申请地址时提到过，默认Information refresh为24h
Address State is IDLE-----------------------------若只申请dns等信息，地址状态为ldle
List of known servers:
Reachable via address: FE80::C800:DFF:FED4:1C
DUID: 00030001CA000DD40000
Preference: 0
Configuration parameters:
DNS server: 1985::1
Domain name: ciscopress.com
SIP DNS server: 1985::1
SIP Domain name: cisco.com--------------------客户端申请的一些information
Information refresh time: 0
Prefix Rapid-Commit: disabled
Address Rapid-Commit: disabled
最后补充一句，思科客户端申请地址状态的变化为
idle---------solicit------------request-------------open
通过debug可以看到后三个状态变化
其它还有renew、rebind状态 ipv6 dhcp client pd prefix------------------------客户端用此命令获取server分配的前缀
请问版主，上面的命令的最后一个prefix从何而来？ 需要搞清楚DHCP地址分配和前缀代理（PD）的具体区别和应用场景。
这个问题该让楼主来回答你！
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