The network setup for this trouble ticket is shown in Figure 3.<br /> Trouble Ticket Statement<br /> DSW1 and R4 cannot ping R2’s loopback or R2’s s0/0/0/0.12 IPv6 address. Initial troubleshooting showsand R2 is not an OSPFv3 neighbor on R3.<br /> Configurationon R2<br /> ipv6 unicast-routing!<br /> ipv6 router ospf 6<br /> router-id 2.2.2.2!<br /> interface s0/0/0/0.23<br /> ipv6 address 2026::1:1/122<br /> ConfigurationR3<br /> ipv6 unicast-routing!<br /> ipv6 router ospf 6<br /> router-id 3.3.3.3!<br /> interface s0/0/0/0.23<br /> ipv6 address 2026::1:2/122<br /> ipv6 ospf 6 area 0<br /> <img src="https://img.ppkao.com/2018-07/tangxueping/2018072416401756802.jpg" /><br /> Figure 3<br /> On&e
A、A.DSW1
B、B.DSW2
C、C.R2
D、D.R3