BR1#show running-config Building configuration... Current configuration : 2082 bytes ! ! Last configuration change at 11:26:27 UTC Fri Dec 15 2017 version 15.2 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname BR1 ! boot-start-marker boot-end-marker ! ! ! no aaa new-model ! ip cef ! ! ! ! ip dhcp pool BR1G1 network 192.168.10.0 255.255.255.0 default-router 192.168.10.1 domain-name ccna-lab.com lease 2 ! ! ! no ip domain lookup ipv6 unicast-routing ipv6 cef ! multilink bundle-name authenticated ! ! ! ! license udi pid CISCO2901/K9 sn FCZ182293KC ! ! ! redundancy ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback45 ip address 172.16.45.1 255.255.255.0 ! interface Loopback46 ip address 172.16.46.1 255.255.255.0 ! interface Loopback47 ip address 172.16.47.1 255.255.255.0 ! interface Loopback48 ip address 172.16.48.1 255.255.255.0 ! interface Embedded-Service-Engine0/0 no ip address shutdown ! interface GigabitEthernet0/0 ip address 192.168.10.1 255.255.255.0 ip helper-address 192.168.10.1 duplex auto speed auto ! interface GigabitEthernet0/1 no ip address duplex auto speed auto ipv6 address FE80::1 link-local ipv6 address 2201:DB8:ACAD:1::2/64 ipv6 eigrp 1 ! interface Serial0/0/0 ip address 2.1.1.1 255.255.255.252 ip ospf message-digest-key 1 md5 p@ssword clock rate 128000 ! interface Serial0/0/1 no ip address ipv6 address FE80::1 link-local ipv6 address 2001:DB8:ACAD:12::2/64 ipv6 eigrp 1 clock rate 128000 ! router ospf 1 router-id 22.22.22.22 auto-cost reference-bandwidth 10240 passive-interface default no passive-interface Serial0/0/0 no passive-interface Serial0/0/1 network 2.1.1.0 0.0.0.3 area 0 default-information originate ! ip forward-protocol nd ! no ip http server no ip http secure-server ! ! ipv6 router eigrp 1 eigrp router-id 1.1.1.1 ! ! ! ! control-plane ! ! ! line con 0 logging synchronous line aux 0 line 2 no activation-character no exec transport preferred none transport output pad telnet rlogin lapb-ta mop udptn v120 ssh stopbits 1 line vty 0 4 login transport input all ! scheduler allocate 20000 1000 ! end BR1#show ip int bri Interface IP-Address OK? Method Status Protocol Embedded-Service-Engine0/0 unassigned YES unset administratively down down GigabitEthernet0/0 192.168.10.1 YES manual up up GigabitEthernet0/1 unassigned YES unset up up Serial0/0/0 2.1.1.1 YES manual up up Serial0/0/1 unassigned YES unset up up Loopback45 172.16.45.1 YES manual up up Loopback46 172.16.46.1 YES manual up up Loopback47 172.16.47.1 YES manual up up Loopback48 172.16.48.1 YES manual up up BR1#show ip route Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is 2.1.1.2 to network 0.0.0.0 O*E2 0.0.0.0/0 [110/1] via 2.1.1.2, 00:51:28, Serial0/0/0 2.0.0.0/8 is variably subnetted, 3 subnets, 2 masks C 2.1.1.0/30 is directly connected, Serial0/0/0 L 2.1.1.1/32 is directly connected, Serial0/0/0 O IA 2.1.1.4/30 [110/7632] via 2.1.1.2, 00:44:01, Serial0/0/0 172.16.0.0/16 is variably subnetted, 8 subnets, 2 masks C 172.16.45.0/24 is directly connected, Loopback45 L 172.16.45.1/32 is directly connected, Loopback45 C 172.16.46.0/24 is directly connected, Loopback46 L 172.16.46.1/32 is directly connected, Loopback46 C 172.16.47.0/24 is directly connected, Loopback47 L 172.16.47.1/32 is directly connected, Loopback47 C 172.16.48.0/24 is directly connected, Loopback48 L 172.16.48.1/32 is directly connected, Loopback48 192.168.10.0/24 is variably subnetted, 2 subnets, 2 masks C 192.168.10.0/24 is directly connected, GigabitEthernet0/0 L 192.168.10.1/32 is directly connected, GigabitEthernet0/0 BR1#show ipv6 int bri Em0/0 [administratively down/down] unassigned GigabitEthernet0/0 [up/up] unassigned GigabitEthernet0/1 [up/up] FE80::1 2201:DB8:ACAD:1::2 Serial0/0/0 [up/up] unassigned Serial0/0/1 [up/up] FE80::1 2001:DB8:ACAD:12::2 Loopback45 [up/up] unassigned Loopback46 [up/up] unassigned Loopback47 [up/up] unassigned Loopback48 [up/up] unassigned BR1#show ipv6 route IPv6 Routing Table - default - 6 entries Codes: C - Connected, L - Local, S - Static, U - Per-user Static route B - BGP, R - RIP, H - NHRP, I1 - ISIS L1 I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary, D - EIGRP EX - EIGRP external, ND - ND Default, NDp - ND Prefix, DCE - Destination NDr - Redirect, O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1 OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2 D 2001:DB8:ACAD:A::/64 [90/2170112] via FE80::3, Serial0/0/1 C 2001:DB8:ACAD:12::/64 [0/0] via Serial0/0/1, directly connected L 2001:DB8:ACAD:12::2/128 [0/0] via Serial0/0/1, receive C 2201:DB8:ACAD:1::/64 [0/0] via GigabitEthernet0/1, directly connected L 2201:DB8:ACAD:1::2/128 [0/0] via GigabitEthernet0/1, receive L FF00::/8 [0/0] via Null0, receive BR1#show ipv6 eigrp topology EIGRP-IPv6 Topology Table for AS(1)/ID(1.1.1.1) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status P 2201:DB8:ACAD:1::/64, 1 successors, FD is 2816 via Connected, GigabitEthernet0/1 P 2001:DB8:ACAD:A::/64, 1 successors, FD is 2170112 via FE80::3 (2170112/2816), Serial0/0/1 P 2001:DB8:ACAD:12::/64, 1 successors, FD is 2169856 via Connected, Serial0/0/1 BR1#show ipv6 eigrp neighbors EIGRP-IPv6 Neighbors for AS(1) H Address Interface Hold Uptime SRTT RTO Q Seq (sec) (ms) Cnt Num 0 Link-local address: Se0/0/1 11 00:32:59 13 100 0 4 FE80::3 BR1# *Dec 15 11:35:39.707: %IP-3-LOOPPAK: Looping packet detected and dropped - src=192.168.10.2, dst=192.168.10.1, hl=20, tl=78, prot=17, sport=137, dport=137 in=GigabitEthernet0/0, nexthop=192.168.10.1, out=GigabitEthernet0/0 options=none -Process= "IP Input", ipl= 0, pid= 122 -Traceback= 30128828z 30129B00z 3012AE58z 3012B330z 3012B89Cz 322CB92Cz 322CBA70z 322C813Cz 3010F724z 3012CEF8z 30111298z 301114D8z 301115B8z 301117D0z 32CCB7A0z 32CCB784z BR1#