Configuration and BGP table on RT1:
! interface Loopback0 ip address 1.1.1.1 255.255.255.255 ! interface Loopback1 ip address 192.168.1.1 255.255.255.0 ! interface Ethernet1/0 ip address 12.12.12.1 255.255.255.0 duplex full ! router bgp 65101 no synchronization bgp router-id 1.1.1.1 bgp log-neighbor-changes network 192.168.1.0 neighbor 2.2.2.2 remote-as 65102 neighbor 2.2.2.2 ebgp-multihop 255 neighbor 2.2.2.2 update-source Loopback0 no auto-summary ! ip route 2.2.2.2 255.255.255.255 12.12.12.2 !
RT1#sh ip bgp BGP table version is 3, local router ID is 1.1.1.1 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, r RIB-failure, S Stale, m multipath, b backup-path, x best-external Origin codes: i - IGP, e - EGP, ? - incomplete Network Next Hop Metric LocPrf Weight Path *> 192.168.1.0 0.0.0.0 0 32768 i *> 192.168.2.0 2.2.2.2 0 65102 65103 i RT1# RT1#ping 192.168.2.1 source 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.2.1, timeout is 2 seconds: Packet sent with a source address of 192.168.1.1 !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 8/40/76 ms RT1#
Configuration and BGP table on RT2:
! interface Loopback0 ip address 2.2.2.2 255.255.255.255 ! interface Ethernet1/0 ip address 12.12.12.2 255.255.255.0 duplex full ! interface Ethernet1/1 ip address 24.24.24.2 255.255.255.0 duplex full ! interface Ethernet1/2 ip address 23.23.23.2 255.255.255.0 duplex full ! router bgp 61 no synchronization bgp router-id 2.2.2.2 bgp log-neighbor-changes bgp confederation identifier 65102 bgp confederation peers 62 63 neighbor 1.1.1.1 remote-as 65101 neighbor 1.1.1.1 ebgp-multihop 255 neighbor 1.1.1.1 update-source Loopback0 neighbor 3.3.3.3 remote-as 61 neighbor 3.3.3.3 update-source Loopback0 neighbor 3.3.3.3 next-hop-self neighbor 4.4.4.4 remote-as 62 neighbor 4.4.4.4 ebgp-multihop 255 neighbor 4.4.4.4 update-source Loopback0 neighbor 4.4.4.4 next-hop-self no auto-summary ! ip route 1.1.1.1 255.255.255.255 12.12.12.1 ip route 3.3.3.3 255.255.255.255 23.23.23.3 ip route 4.4.4.4 255.255.255.255 24.24.24.4 !
RT2#sh ip bgp
BGP table version is 3, local router ID is 2.2.2.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, x best-external
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 192.168.1.0 1.1.1.1 0 0 65101 i
*> 192.168.2.0 4.4.4.4 0 100 0 (62 63) 65103 i
RT2#
Configuration and BGP table on RT3:
! interface Loopback0 ip address 3.3.3.3 255.255.255.255 ! interface Ethernet1/0 ip address 23.23.23.3 255.255.255.0 duplex full ! router bgp 61 no synchronization bgp router-id 3.3.3.3 bgp log-neighbor-changes bgp confederation identifier 65102 bgp confederation peers 62 63 neighbor 2.2.2.2 remote-as 61 neighbor 2.2.2.2 update-source Loopback0 no auto-summary ! ip route 2.2.2.2 255.255.255.255 23.23.23.2 !
RT3#sh ip bgp
BGP table version is 3, local router ID is 3.3.3.3
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, x best-external
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*>i192.168.1.0 2.2.2.2 0 100 0 65101 i
*>i192.168.2.0 2.2.2.2 0 100 0 (62 63) 65103 i
RT3#
Configuration and BGP table on RT4:
! interface Loopback0 ip address 4.4.4.4 255.255.255.255 ! interface Ethernet1/0 ip address 24.24.24.4 255.255.255.0 duplex full ! interface Ethernet1/1 ip address 45.45.45.4 255.255.255.0 duplex full ! router bgp 62 no synchronization bgp router-id 4.4.4.4 bgp log-neighbor-changes bgp confederation identifier 65102 bgp confederation peers 61 63 neighbor 2.2.2.2 remote-as 61 neighbor 2.2.2.2 ebgp-multihop 255 neighbor 2.2.2.2 update-source Loopback0 neighbor 2.2.2.2 next-hop-self neighbor 5.5.5.5 remote-as 62 neighbor 5.5.5.5 update-source Loopback0 neighbor 5.5.5.5 next-hop-self no auto-summary ! ip route 2.2.2.2 255.255.255.255 24.24.24.2 ip route 5.5.5.5 255.255.255.255 45.45.45.5 !
RT4#sh ip bgp
BGP table version is 3, local router ID is 4.4.4.4
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, x best-external
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 192.168.1.0 2.2.2.2 0 100 0 (61) 65101 i
*>i192.168.2.0 5.5.5.5 0 100 0 (63) 65103 i
RT4#
Configuration and BGP table on RT5:
! interface Loopback0 ip address 5.5.5.5 255.255.255.255 ! interface Ethernet1/0 ip address 45.45.45.5 255.255.255.0 duplex full ! interface Ethernet1/1 ip address 57.57.57.5 255.255.255.0 duplex full ! router bgp 62 no synchronization bgp router-id 5.5.5.5 bgp log-neighbor-changes bgp confederation identifier 65102 bgp confederation peers 61 63 neighbor 4.4.4.4 remote-as 62 neighbor 4.4.4.4 update-source Loopback0 neighbor 4.4.4.4 next-hop-self neighbor 7.7.7.7 remote-as 63 neighbor 7.7.7.7 ebgp-multihop 255 neighbor 7.7.7.7 update-source Loopback0 neighbor 7.7.7.7 next-hop-self no auto-summary ! ip route 4.4.4.4 255.255.255.255 45.45.45.4 ip route 7.7.7.7 255.255.255.255 57.57.57.7 !
RT5#sh ip bgp
BGP table version is 3, local router ID is 5.5.5.5
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, x best-external
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*>i192.168.1.0 4.4.4.4 0 100 0 (61) 65101 i
*> 192.168.2.0 7.7.7.7 0 100 0 (63) 65103 i
RT5#
Configuration and BGP table on RT6:
! interface Loopback0 ip address 6.6.6.6 255.255.255.255 ! interface Ethernet1/0 ip address 67.67.67.6 255.255.255.0 duplex full ! router bgp 63 no synchronization bgp router-id 6.6.6.6 bgp log-neighbor-changes bgp confederation identifier 65102 bgp confederation peers 61 62 neighbor 7.7.7.7 remote-as 63 neighbor 7.7.7.7 update-source Loopback0 no auto-summary ! ip route 7.7.7.7 255.255.255.255 67.67.67.7 !
RT6#sh ip bgp
BGP table version is 3, local router ID is 6.6.6.6
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, x best-external
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*>i192.168.1.0 7.7.7.7 0 100 0 (62 61) 65101 i
*>i192.168.2.0 7.7.7.7 0 100 0 65103 i
RT6#
Configuration and BGP table on RT7:
! interface Loopback0 ip address 7.7.7.7 255.255.255.255 ! interface Ethernet1/0 ip address 67.67.67.7 255.255.255.0 duplex full ! interface Ethernet1/1 ip address 57.57.57.7 255.255.255.0 duplex full ! interface Ethernet1/2 ip address 78.78.78.7 255.255.255.0 duplex full ! router bgp 63 no synchronization bgp router-id 7.7.7.7 bgp log-neighbor-changes bgp confederation identifier 65102 bgp confederation peers 61 62 neighbor 5.5.5.5 remote-as 62 neighbor 5.5.5.5 ebgp-multihop 255 neighbor 5.5.5.5 update-source Loopback0 neighbor 5.5.5.5 next-hop-self neighbor 6.6.6.6 remote-as 63 neighbor 6.6.6.6 update-source Loopback0 neighbor 6.6.6.6 next-hop-self neighbor 8.8.8.8 remote-as 65103 neighbor 8.8.8.8 ebgp-multihop 255 neighbor 8.8.8.8 update-source Loopback0 no auto-summary ! ip route 5.5.5.5 255.255.255.255 57.57.57.5 ip route 6.6.6.6 255.255.255.255 67.67.67.6 ip route 8.8.8.8 255.255.255.255 78.78.78.8 !
RT7#sh ip bgp
BGP table version is 3, local router ID is 7.7.7.7
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, x best-external
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 192.168.1.0 5.5.5.5 0 100 0 (62 61) 65101 i
*> 192.168.2.0 8.8.8.8 0 0 65103 i
RT7#
Configuration and BGP table on RT8:
! interface Loopback0 ip address 8.8.8.8 255.255.255.255 ! interface Loopback1 ip address 192.168.2.1 255.255.255.0 ! interface Ethernet1/0 ip address 78.78.78.8 255.255.255.0 duplex full ! router bgp 65103 no synchronization bgp router-id 8.8.8.8 bgp log-neighbor-changes network 192.168.2.0 neighbor 7.7.7.7 remote-as 65102 neighbor 7.7.7.7 ebgp-multihop 255 neighbor 7.7.7.7 update-source Loopback0 no auto-summary ! ip route 7.7.7.7 255.255.255.255 78.78.78.7 !
RT8#sh ip bgp
BGP table version is 3, local router ID is 8.8.8.8
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, x best-external
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 192.168.1.0 7.7.7.7 0 65102 65101 i
*> 192.168.2.0 0.0.0.0 0 32768 i
RT8#
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