R1#show running-config Building configuration... Current configuration : 2741 bytes ! ! Last configuration change at 14:29:15 UTC Fri Nov 15 2019 ! version 15.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R1 ! boot-start-marker boot-end-marker ! ! ! no aaa new-model ! ! ! ! ! ! ! ! ! ! ! ! ! ! no ip domain lookup ip cef ipv6 unicast-routing ipv6 cef multilink bundle-name authenticated ! ! key chain mychain key 1 key-string cisco cts logging verbose ! ! license udi pid CISCO1941/K9 sn FCZ2125B0FA ! ! ! redundancy ! ! ! ! ! ! interface Loopback0 no ip address ipv6 address FE80::10 link-local ipv6 address 2001:DB8:CAFE:10::1/64 ipv6 eigrp 205 ! interface Loopback11 ip address 172.16.11.1 255.255.255.0 ! interface Loopback12 ip address 172.16.12.1 255.255.255.0 ! interface Loopback13 ip address 172.16.13.1 255.255.255.0 ! interface Loopback14 ip address 172.16.14.1 255.255.255.0 ! interface Loopback15 ip address 172.16.15.1 255.255.255.0 ! interface Loopback55 ip address 172.16.55.1 255.255.255.0 ! interface Loopback56 ip address 172.16.56.1 255.255.255.0 ! interface Loopback57 ip address 172.16.57.1 255.255.255.0 ! interface Loopback58 ip address 172.16.58.1 255.255.255.0 ! interface Loopback100 ip address 172.16.100.65 255.255.255.192 ! interface Embedded-Service-Engine0/0 no ip address shutdown ! interface GigabitEthernet0/0 no ip address shutdown duplex auto speed auto ! interface GigabitEthernet0/1 no ip address shutdown duplex auto speed auto ! interface Serial0/0/0 description Link to R2 bandwidth 128000 ip address 20.10.10.1 255.255.255.252 ip authentication mode eigrp 205 md5 ip authentication key-chain eigrp 205 mychain ip summary-address eigrp 205 172.16.0.0 255.255.128.0 ipv6 address FE80::1 link-local ipv6 address 2001:DB8:ABCD:10::1/64 ipv6 eigrp 205 clock rate 128000 ! interface Serial0/0/1 no ip address shutdown clock rate 2000000 ! ! router eigrp 205 network 20.10.10.0 0.0.0.3 network 172.16.11.0 0.0.0.255 network 172.16.12.0 0.0.0.255 network 172.16.13.0 0.0.0.255 network 172.16.14.0 0.0.0.255 network 172.16.15.0 0.0.0.255 network 172.16.55.0 0.0.0.255 network 172.16.56.0 0.0.0.255 network 172.16.57.0 0.0.0.255 network 172.16.58.0 0.0.0.255 network 172.16.100.64 0.0.0.63 passive-interface default no passive-interface Serial0/0/0 eigrp router-id 1.1.1.1 ! ip forward-protocol nd ! no ip http server no ip http secure-server ! ! ipv6 router eigrp 205 ! ! ! ! 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 none ! scheduler allocate 20000 1000 ! end R1#sh R1#show ip in R1#show ip interface br R1#show ip interface brief Interface IP-Address OK? Method Status Protocol Embedded-Service-Engine0/0 unassigned YES unset administratively down down GigabitEthernet0/0 unassigned YES unset administratively down down GigabitEthernet0/1 unassigned YES unset administratively down down Serial0/0/0 20.10.10.1 YES manual up up Serial0/0/1 unassigned YES unset administratively down down Loopback0 unassigned YES unset up up Loopback11 172.16.11.1 YES manual up up Loopback12 172.16.12.1 YES manual up up Loopback13 172.16.13.1 YES manual up up Loopback14 172.16.14.1 YES manual up up Loopback15 172.16.15.1 YES manual up up Loopback55 172.16.55.1 YES manual up up Loopback56 172.16.56.1 YES manual up up Loopback57 172.16.57.1 YES manual up up Loopback58 172.16.58.1 YES manual up up Loopback100 172.16.100.65 YES manual up up R1#sh R1#show ip rou R1#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 a - application route + - replicated route, % - next hop override Gateway of last resort is 20.10.10.2 to network 0.0.0.0 D*EX 0.0.0.0/0 [170/659968] via 20.10.10.2, 00:29:30, Serial0/0/0 20.0.0.0/8 is variably subnetted, 3 subnets, 2 masks C 20.10.10.0/30 is directly connected, Serial0/0/0 L 20.10.10.1/32 is directly connected, Serial0/0/0 D EX 20.10.10.4/30 [170/557568] via 20.10.10.2, 00:45:33, Serial0/0/0 172.16.0.0/16 is variably subnetted, 21 subnets, 4 masks D 172.16.0.0/17 is a summary, 00:32:23, Null0 C 172.16.11.0/24 is directly connected, Loopback11 L 172.16.11.1/32 is directly connected, Loopback11 C 172.16.12.0/24 is directly connected, Loopback12 L 172.16.12.1/32 is directly connected, Loopback12 C 172.16.13.0/24 is directly connected, Loopback13 L 172.16.13.1/32 is directly connected, Loopback13 C 172.16.14.0/24 is directly connected, Loopback14 L 172.16.14.1/32 is directly connected, Loopback14 C 172.16.15.0/24 is directly connected, Loopback15 L 172.16.15.1/32 is directly connected, Loopback15 C 172.16.55.0/24 is directly connected, Loopback55 L 172.16.55.1/32 is directly connected, Loopback55 C 172.16.56.0/24 is directly connected, Loopback56 L 172.16.56.1/32 is directly connected, Loopback56 C 172.16.57.0/24 is directly connected, Loopback57 L 172.16.57.1/32 is directly connected, Loopback57 C 172.16.58.0/24 is directly connected, Loopback58 L 172.16.58.1/32 is directly connected, Loopback58 C 172.16.100.64/26 is directly connected, Loopback100 L 172.16.100.65/32 is directly connected, Loopback100 172.26.0.0/24 is subnetted, 3 subnets D EX 172.26.21.0 [170/557568] via 20.10.10.2, 00:17:29, Serial0/0/0 D EX 172.26.22.0 [170/557568] via 20.10.10.2, 00:17:29, Serial0/0/0 D EX 172.26.23.0 [170/557568] via 20.10.10.2, 00:17:29, Serial0/0/0 D EX 192.168.40.0/24 [170/557568] via 20.10.10.2, 00:17:29, Serial0/0/0 D EX 192.168.45.0/24 [170/557568] via 20.10.10.2, 00:17:29, Serial0/0/0 D EX 192.168.50.0/24 [170/557568] via 20.10.10.2, 00:17:29, Serial0/0/0 D EX 192.168.55.0/24 [170/557568] via 20.10.10.2, 00:17:29, Serial0/0/0 D EX 192.168.60.0/24 [170/557568] via 20.10.10.2, 00:17:29, Serial0/0/0 D EX 192.168.65.0/24 [170/557568] via 20.10.10.2, 00:17:29, Serial0/0/0 R1#sh R1#show ipv R1#show ipv6 in R1#show ipv6 interface br R1#show ipv6 interface brief Em0/0 [administratively down/down] unassigned GigabitEthernet0/0 [administratively down/down] unassigned GigabitEthernet0/1 [administratively down/down] unassigned Serial0/0/0 [up/up] FE80::1 2001:DB8:ABCD:10::1 Serial0/0/1 [administratively down/down] unassigned Loopback0 [up/up] FE80::10 2001:DB8:CAFE:10::1 Loopback11 [up/up] unassigned Loopback12 [up/up] unassigned Loopback13 [up/up] unassigned Loopback14 [up/up] unassigned Loopback15 [up/up] unassigned Loopback55 [up/up] unassigned Loopback56 [up/up] unassigned Loopback57 [up/up] unassigned Loopback58 [up/up] unassigned Loopback100 [up/up] unassigned R1#sh R1#show ipv R1#show ipv6 rou R1#show ipv6 route IPv6 Routing Table - default - 9 entries Codes: C - Connected, L - Local, S - Static, U - Per-user Static route B - BGP, R - RIP, 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, a - Application EX 2001:DB8:9A:10AA::1/128 [170/557568] via FE80::2, Serial0/0/0 C 2001:DB8:ABCD:10::/64 [0/0] via Serial0/0/0, directly connected L 2001:DB8:ABCD:10::1/128 [0/0] via Serial0/0/0, receive EX 2001:DB8:ABCD:20::/64 [170/1043968] via FE80::2, Serial0/0/0 EX 2001:DB8:ABCD:100::/64 [170/659968] via FE80::2, Serial0/0/0 C 2001:DB8:CAFE:10::/64 [0/0] via Loopback0, directly connected L 2001:DB8:CAFE:10::1/128 [0/0] via Loopback0, receive EX 2001:DB8:CAFE:100::/64 [170/659968] via FE80::2, Serial0/0/0 L FF00::/8 [0/0] via Null0, receive R1#