多项选择题
A. Automatic 6to4, quartets 2 and 3
B. Automatic 6to4, quartets 7 and 8
C. ISATAP, quartets 2 and 3
D. ISATAP, quartets 7 and 8
单项选择题 The following configuration exists on a router on one end of an IPv6 tunnel. Although the configuration added so far is correct, the configuration is incomplete. Which type of tunnel is most likely to be intended by the network engineer？（） interface loopback 1 ip address 192.168.1.1 255.255.255.255 interface tunnel 2 ipv6 address 2002:C0A8:10 1::1/64 tunnel source loopback 1
多项选择题 Which of the following IPv6 tunneling mechanisms support IPv6 IGP routing protocols?（）
单项选择题 An engineer is reviewing another engineers sample configuration for a GRE tunnel used to pass IPv6 traffiC. The tunnel ha s not yet been configured on the router. Which of the following commands is not required for the configuration to pass IPv6 traffic?（）