ISP#show run
Building configuration...

Current configuration : 1426 bytes
!
! Last configuration change at 10:55:31 UTC Mon May 12 2025
version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname ISP
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
!
ip cef
!
!
!
!
!
!
no ip domain lookup
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
license udi pid CISCO2901/K9 sn FCZ182293KA
!
!
!
redundancy
!
!
!
!
!
!
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!
!
!
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interface Loopback5
 ip address 209.165.201.1 255.255.255.0
 ip ospf hello-interval 30
!
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
 ip address 1.1.1.5 255.255.255.248
 ip ospf hello-interval 30
 clock rate 2000000
!
interface Serial0/0/1
 ip address 200.100.100.2 255.255.255.248
 ip ospf hello-interval 30
 clock rate 2000000
!
router bgp 600
 bgp log-neighbor-changes
 network 209.165.201.0
 neighbor 200.100.100.0 remote-as 500
!
ip forward-protocol nd
!
no ip http server
no ip http secure-server
!
!
!
!
!
control-plane
!
!
!
line con 0
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

ISP#show ip int bri
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                1.1.1.5         YES manual up                    up
Serial0/0/1                200.100.100.2   YES manual up                    up
Loopback5                  209.165.201.1   YES manual up                    up

ISP#show ip protocols
*** IP Routing is NSF aware ***

Routing Protocol is "bgp 600"
  Outgoing update filter list for all interfaces is not set
  Incoming update filter list for all interfaces is not set
  IGP synchronization is disabled
  Automatic route summarization is disabled
  Neighbor(s):
    Address          FiltIn FiltOut DistIn DistOut Weight RouteMap
    200.100.100.0
  Maximum path: 1
  Routing Information Sources:
    Gateway         Distance      Last Update
  Distance: external 20 internal 200 local 200


ISP#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 not set

      1.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        1.1.1.0/29 is directly connected, Serial0/0/0
L        1.1.1.5/32 is directly connected, Serial0/0/0
      200.100.100.0/24 is variably subnetted, 2 subnets, 2 masks
C        200.100.100.0/29 is directly connected, Serial0/0/1
L        200.100.100.2/32 is directly connected, Serial0/0/1
      209.165.201.0/24 is variably subnetted, 2 subnets, 2 masks
C        209.165.201.0/24 is directly connected, Loopback5
L        209.165.201.1/32 is directly connected, Loopback5

ISP#show ip bgp summary
BGP router identifier 209.165.201.1, local AS number 600
BGP table version is 2, main routing table version 2
1 network entries using 148 bytes of memory
1 path entries using 64 bytes of memory
1/1 BGP path/bestpath attribute entries using 136 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 348 total bytes of memory
BGP activity 1/0 prefixes, 1/0 paths, scan interval 60 secs

Neighbor        V           AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
200.100.100.0   4          500       0       0        1    0    0 never    Active

ISP#show ip bgp
BGP table version is 2, local router ID is 209.165.201.1
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
              x best-external, a additional-path, c RIB-compressed,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found

     Network          Next Hop            Metric LocPrf Weight Path
 *>  209.165.201.0    0.0.0.0                  0         32768 i




