交换机配置为ipv6的网关和ipv6的dhcp server,终端可以获取ipv6地址,但获取不到dhcp pool的dns
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看下配置,debug dhcp server看下报文交互
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interface Vlan-interface102 description Test-SRE-IPV6 ip address 10.2.102.1 255.255.254.0 ipv6 dhcp select server ipv6 address FC00:0:0:102::1/64 ipv6 nd autoconfig managed-address-flag ipv6 nd autoconfig other-flag undo ipv6 nd ra halt ipv6 dhcp pool v6-102 network FC00:0:0:102::/64 preferred-lifetime 172800 valid-lifetime 345600 dns-server 2402:4E00:1020:1264:0:9136:29B9:CB1F
可以收集下dhcp server的debug信息,看下报文交互情况
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interface Vlan-interface102 description Test-SRE-IPV6 ip address 10.2.102.1 255.255.254.0 ipv6 dhcp select server ipv6 address FC00:0:0:102::1/64 ipv6 nd autoconfig managed-address-flag ipv6 nd autoconfig other-flag undo ipv6 nd ra halt ipv6 dhcp pool v6-102 network FC00:0:0:102::/64 preferred-lifetime 172800 valid-lifetime 345600 dns-server 2402:4E00:1020:1264:0:9136:29B9:CB1F
interface Vlan-interface102 description Test-SRE-IPV6 ip address 10.2.102.1 255.255.254.0 ipv6 dhcp select server ipv6 address FC00:0:0:102::1/64 ipv6 nd autoconfig managed-address-flag ipv6 nd autoconfig other-flag undo ipv6 nd ra halt ipv6 dhcp pool v6-102 network FC00:0:0:102::/64 preferred-lifetime 172800 valid-lifetime 345600 dns-server 2402:4E00:1020:1264:0:9136:29B9:CB1F
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interface Vlan-interface102 description Test-SRE-IPV6 ip address 10.2.102.1 255.255.254.0 ipv6 dhcp select server ipv6 address FC00:0:0:102::1/64 ipv6 nd autoconfig managed-address-flag ipv6 nd autoconfig other-flag undo ipv6 nd ra halt ipv6 dhcp pool v6-102 network FC00:0:0:102::/64 preferred-lifetime 172800 valid-lifetime 345600 dns-server 2402:4E00:1020:1264:0:9136:29B9:CB1F