Device Interface IPv6 Default Gateway R1 G0/1 S0/0/0 L01 N/A N/A N/A S0/0/0 N/A R2 S0/0/1 N/A Lo0 2001:db8:acad:1::1/64 N/A G0/1 N/A 123 R3 S0/0/1 N/A Lo4 N/A S1 VLAN 1 S2 VLAN 1 S3 VLAN 1 192.198.xx.1/24 PC-A NIC PC-B NIC PC-C NIC Area 1 Internet Lo0 50/0/0 DCE 50/0/0 R1 R2 50/0/1 DCE 50/0/1 Area 3 XT Lo4 R3 Area 0 GO/1 GO/1 HSRP HSRP FO/5 FO/5 FO/4 FO/4 FO/3 S1 EtherChannel FO/3 S3 FO/2 FO/1 FO/18 F0/6 FO/1 FO/2 FO/3 FO/2 PC-A FO/1 FO/4 S2 PC-C FO/18 PC-B