R4#sh run Building configuration... Current configuration : 1552 bytes ! ! Last configuration change at 11:11:15 UTC Mon May 20 2019 version 15.2 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R4 ! boot-start-marker boot-end-marker ! ! ! no aaa new-model ! ip cef ! ! ! ! ! ! no ip domain lookup ipv6 unicast-routing ipv6 cef multilink bundle-name authenticated ! ! ! ! license udi pid CISCO2901/K9 sn FCZ182291P9 ! ! ! ! ! ! ! ! interface Embedded-Service-Engine0/0 no ip address shutdown ! interface GigabitEthernet0/0 bandwidth 128 ip address 172.168.4.1 255.255.255.0 duplex auto speed auto ! interface GigabitEthernet0/1 no ip address shutdown duplex auto speed auto ! interface Serial0/0/0 ip address 172.16.2.1 255.255.255.252 ipv6 address 2001:DB8:FEED:2::1/64 ! interface Serial0/0/1 ip address 172.16.1.1 255.255.255.0 ipv6 address 2001:DB8:FEED:1::1/64 ! router bgp 65401 bgp router-id 4.4.4.4 bgp log-neighbor-changes neighbor 172.16.1.0 remote-as 65101 neighbor 172.16.2.0 remote-as 65101 ! address-family ipv4 network 172.16.2.1 network 172.16.4.1 neighbor 172.16.1.0 activate neighbor 172.16.2.0 activate exit-address-family ! ip forward-protocol nd ! no ip http server no ip http secure-server ! ! ! ! ! control-plane ! ! ! line con 0 exec-timeout 0 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 R4#sh ip int bri Interface IP-Address OK? Method Status Protocol Embedded-Service-Engine0/0 unassigned YES unset administratively down down GigabitEthernet0/0 172.168.4.1 YES manual down down GigabitEthernet0/1 unassigned YES unset administratively down down Serial0/0/0 172.16.2.1 YES SLARP up up Serial0/0/1 172.16.1.1 YES manual up up R4#sh 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 not set 172.16.0.0/16 is variably subnetted, 4 subnets, 3 masks C 172.16.1.0/24 is directly connected, Serial0/0/1 L 172.16.1.1/32 is directly connected, Serial0/0/1 C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.1/32 is directly connected, Serial0/0/0 R4#sh ipv6 int bri Em0/0 [administratively down/down] unassigned GigabitEthernet0/0 [down/down] unassigned GigabitEthernet0/1 [administratively down/down] unassigned Serial0/0/0 [up/up] FE80::1205:CAFF:FEB0:F278 2001:DB8:FEED:2::1 Serial0/0/1 [up/up] FE80::1205:CAFF:FEB0:F278 2001:DB8:FEED:1::1 R4#sh ipv6 route IPv6 Routing Table - default - 5 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 C 2001:DB8:FEED:1::/64 [0/0] via Serial0/0/1, directly connected L 2001:DB8:FEED:1::1/128 [0/0] via Serial0/0/1, receive C 2001:DB8:FEED:2::/64 [0/0] via Serial0/0/0, directly connected L 2001:DB8:FEED:2::1/128 [0/0] via Serial0/0/0, receive L FF00::/8 [0/0] via Null0, receive R4#sh ip bgp neigh BGP neighbor is 172.16.1.0, remote AS 65101, external link BGP version 4, remote router ID 0.0.0.0 BGP state = Active Neighbor sessions: 0 active, is not multisession capable (disabled) Stateful switchover support enabled: NO for session 0 Message statistics: InQ depth is 0 OutQ depth is 0 Sent Rcvd Opens: 0 0 Notifications: 0 0 Updates: 0 0 Keepalives: 0 0 Route Refresh: 0 0 Total: 0 0 Default minimum time between advertisement runs is 30 seconds For address family: IPv4 Unicast BGP table version 1, neighbor version 1/0 Output queue size : 0 Index 0, Advertise bit 0 Slow-peer detection is disabled Slow-peer split-update-group dynamic is disabled Sent Rcvd Prefix activity: ---- ---- Prefixes Current: 0 0 Prefixes Total: 0 0 Implicit Withdraw: 0 0 Explicit Withdraw: 0 0 Used as bestpath: n/a 0 Used as multipath: n/a 0 Outbound Inbound Local Policy Denied Prefixes: -------- ------- Total: 0 0 Number of NLRIs in the update sent: max 0, min 0 Last detected as dynamic slow peer: never Dynamic slow peer recovered: never Refresh Epoch: 1 Last Sent Refresh Start-of-rib: never Last Sent Refresh End-of-rib: never Last Received Refresh Start-of-rib: never Last Received Refresh End-of-rib: never Sent Rcvd Refresh activity: ---- ---- Refresh Start-of-RIB 0 0 Refresh End-of-RIB 0 0 Address tracking is enabled, the RIB does have a route to 172.16.1.0 Connections established 0; dropped 0 Last reset never Transport(tcp) path-mtu-discovery is enabled Graceful-Restart is disabled No active TCP connection BGP neighbor is 172.16.2.0, remote AS 65101, external link BGP version 4, remote router ID 0.0.0.0 BGP state = Active Neighbor sessions: 0 active, is not multisession capable (disabled) Stateful switchover support enabled: NO for session 0 Message statistics: InQ depth is 0 OutQ depth is 0 Sent Rcvd Opens: 0 0 Notifications: 0 0 Updates: 0 0 Keepalives: 0 0 Route Refresh: 0 0 Total: 0 0 Default minimum time between advertisement runs is 30 seconds For address family: IPv4 Unicast BGP table version 1, neighbor version 1/0 Output queue size : 0 Index 0, Advertise bit 0 Slow-peer detection is disabled Slow-peer split-update-group dynamic is disabled Sent Rcvd Prefix activity: ---- ---- Prefixes Current: 0 0 Prefixes Total: 0 0 Implicit Withdraw: 0 0 Explicit Withdraw: 0 0 Used as bestpath: n/a 0 Used as multipath: n/a 0 Outbound Inbound Local Policy Denied Prefixes: -------- ------- Total: 0 0 Number of NLRIs in the update sent: max 0, min 0 Last detected as dynamic slow peer: never Dynamic slow peer recovered: never Refresh Epoch: 1 Last Sent Refresh Start-of-rib: never Last Sent Refresh End-of-rib: never Last Received Refresh Start-of-rib: never Last Received Refresh End-of-rib: never Sent Rcvd Refresh activity: ---- ---- Refresh Start-of-RIB 0 0 Refresh End-of-RIB 0 0 Address tracking is enabled, the RIB does have a route to 172.16.2.0 Connections established 0; dropped 0 Last reset never Transport(tcp) path-mtu-discovery is enabled Graceful-Restart is disabled No active TCP connection R4#sh ip bgp summ BGP router identifier 4.4.4.4, local AS number 65401 BGP table version is 1, main routing table version 1 Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 172.16.1.0 4 65101 0 0 1 0 0 never Active 172.16.2.0 4 65101 0 0 1 0 0 never Idle R4# R4# R2#sh run Building configuration... Current configuration : 2575 bytes ! ! Last configuration change at 10:40:15 UTC Mon May 20 2019 version 15.2 service timestamps debug datetime msec service timestamps log datetime msec service password-encryption ! hostname R2 ! boot-start-marker boot-end-marker ! ! enable secret 5 $1$9Hh6$FsxY74psY0kt6ppKMGsEd1 ! no aaa new-model ! ip cef ! ! ! ! ! ! no ip domain lookup ipv6 unicast-routing ipv6 cef ! multilink bundle-name authenticated ! ! ! ! license udi pid CISCO2901/K9 sn FCZ182293KJ ! ! username admin secret 5 $1$2/cr$/4BJG9akv67MfAXL8AbYE. ! redundancy ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Embedded-Service-Engine0/0 no ip address shutdown ! interface GigabitEthernet0/0 bandwidth 128 ip address 192.168.2.1 255.255.255.0 duplex auto speed auto ipv6 address 2001:DB8:ACAD:B::1/64 ipv6 ospf 1 area 1 ! interface GigabitEthernet0/1 no ip address shutdown duplex auto speed auto ! interface Serial0/0/0 ip address 192.168.9.2 255.255.255.252 ipv6 address 2001:DB8:ACAD:90::2/64 ipv6 ospf 1 area 0 ! interface Serial0/0/1 ip address 192.168.9.5 255.255.255.252 ipv6 address 2001:DB8:ACAD:91::1/64 ipv6 ospf 1 area 0 clock rate 128000 ! ! router eigrp DUAL-STACK ! address-family ipv4 unicast autonomous-system 101 ! topology base exit-af-topology network 192.168.9.0 0.0.0.3 eigrp router-id 2.2.2.2 exit-address-family ! address-family ipv6 unicast autonomous-system 101 ! topology base exit-af-topology eigrp router-id 2.2.2.2 exit-address-family ! ! router eigrp 2 ! ! router eigrp 1 distribute-list ospf20-filter out ospf 1 ! router ospfv3 1 router-id 1.1.1.1 ! address-family ipv4 unicast redistribute eigrp 101 metric 1500 exit-address-family ! address-family ipv6 unicast redistribute eigrp 101 include-connected router-id 1.1.1.1 exit-address-family ! router ospf 1 router-id 1.1.1.1 area 1 stub network 192.168.2.0 0.0.0.255 area 1 network 192.168.9.4 0.0.0.3 area 0 distribute-list prefix eigrp-filter out eigrp 1 ! ip forward-protocol nd ! no ip http server no ip http secure-server ! ! ip access-list standard ospf20-filter remark used with dlist to filter ospf 2- routes deny 192.168.3.0 0.0.0.3 permit any ! ipv6 router eigrp 1 redistribute ospf 1 metric 1500 100 255 1 1500 include-connected ! ! ! ! control-plane ! ! ! line con 0 exec-timeout 0 0 logging synchronous login local 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 R2#sh ip int bri Interface IP-Address OK? Method Status Protocol Embedded-Service-Engine0/0 unassigned YES unset administratively down down GigabitEthernet0/0 192.168.2.1 YES manual up up GigabitEthernet0/1 unassigned YES unset administratively down down Serial0/0/0 192.168.9.2 YES manual up up Serial0/0/1 192.168.9.5 YES manual up up R2#sh 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 not set 192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks C 192.168.2.0/24 is directly connected, GigabitEthernet0/0 L 192.168.2.1/32 is directly connected, GigabitEthernet0/0 192.168.9.0/24 is variably subnetted, 4 subnets, 2 masks C 192.168.9.0/30 is directly connected, Serial0/0/0 L 192.168.9.2/32 is directly connected, Serial0/0/0 C 192.168.9.4/30 is directly connected, Serial0/0/1 L 192.168.9.5/32 is directly connected, Serial0/0/1 R2#sh ipv6 int bri Em0/0 [administratively down/down] unassigned GigabitEthernet0/0 [up/up] FE80::D272:DCFF:FE19:4CC8 2001:DB8:ACAD:B::1 GigabitEthernet0/1 [administratively down/down] unassigned Serial0/0/0 [up/up] FE80::D272:DCFF:FE19:4CC8 2001:DB8:ACAD:90::2 Serial0/0/1 [up/up] FE80::D272:DCFF:FE19:4CC8 2001:DB8:ACAD:91::1 R2#sh ipv6 route IPv6 Routing Table - default - 8 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 C 2001:DB8:ACAD:B::/64 [0/0] via GigabitEthernet0/0, directly connected L 2001:DB8:ACAD:B::1/128 [0/0] via GigabitEthernet0/0, receive C 2001:DB8:ACAD:90::/64 [0/0] via Serial0/0/0, directly connected L 2001:DB8:ACAD:90::2/128 [0/0] via Serial0/0/0, receive C 2001:DB8:ACAD:91::/64 [0/0] via Serial0/0/1, directly connected L 2001:DB8:ACAD:91::1/128 [0/0] via Serial0/0/1, receive D 2001:DB8:ACAD:110::/64 [90/50245120] via FE80::1205:CAFF:FE36:A548, Serial0/0/0 L FF00::/8 [0/0] via Null0, receive R2#