单选题Which command enables IPv6 forwarding on a cisco router？（）Aipv6 hostBipv6 unicast-routingCipv6 localDipv6 neighbor
单选题
Which command enables IPv6 forwarding on a cisco router？（）
A
ipv6 host
B
ipv6 unicast-routing
C
ipv6 local
D
ipv6 neighbor
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解析：
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