C:\>ping 192.4.23.11Pinging192.4.23.11 with 32 bytes of data:
Reply from 192.4.23.11: bytes=32 time=13ms TTL=123Reply from 192.4.23.11: bytes=32 time=10ms TTL=123Reply from 192.4.23.11: bytes=32 time=12ms TTL=123Reply from 192.4.23.11: bytes=32 time=29ms TTL=123Ping statistics for 192.4.23.11:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 10ms, Maximum = 29ms, Average = 16ms
C:\>ping2.2.2.11Pinging 2.2.2.11 with 32 bytes of data:Reply from 1.1.1.1:Destinationhostunreachable.Reply from 1.1.1.1:Destinationhostunreachable.Reply from 1.1.1.1:Destinationhostunreachable.Reply from 1.1.1.1:Destinationhostunreachable.Ping statistics for 2.2.2.11:Packets:Sent=4,Received=0,Lost=4(100%loss),
C:\>ping 2.2.2.11Pinging2.2.2.11 with 32 bytes of data:
Request timed out.
Reply from 2.2.2.11: bytes=32 time=7ms TTL=125Reply from 2.2.2.11: bytes=32 time=9ms TTL=125Reply from 2.2.2.11: bytes=32 time=9ms TTL=125Ping statistics for 2.2.2.11:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 7ms, Maximum = 9ms, Average = 8ms
C:\>ping 3.3.3.5Pinging3.3.3.5 with 32 bytes of data:
Reply from 3.3.3.5: bytes=32 time=6ms TTL=254Reply from 3.3.3.5: bytes=32 time=6ms TTL=254Reply from 3.3.3.5: bytes=32 time=6ms TTL=254Reply from 3.3.3.5: bytes=32 time=4ms TTL=254Ping statistics for 3.3.3.5:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 4ms, Maximum = 6ms, Average = 5ms
PC2 테스트
C:\>ping 1.1.1.11Pinging1.1.1.11 with 32 bytes of data:
Reply from 1.1.1.11: bytes=32 time=10ms TTL=125Reply from 1.1.1.11: bytes=32 time=8ms TTL=125Reply from 1.1.1.11: bytes=32 time=8ms TTL=125Reply from 1.1.1.11: bytes=32 time=9ms TTL=125Ping statistics for 1.1.1.11:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 8ms, Maximum = 10ms, Average = 8ms
C:\>ping 3.3.3.1Pinging3.3.3.1 with 32 bytes of data:
Reply from 3.3.3.1: bytes=32 time=8ms TTL=253Reply from 3.3.3.1: bytes=32 time=7ms TTL=253Reply from 3.3.3.1: bytes=32 time=6ms TTL=253Reply from 3.3.3.1: bytes=32 time=8ms TTL=253Ping statistics for 3.3.3.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 6ms, Maximum = 8ms, Average = 7ms
C:\>ping 2.2.2.11Pinging2.2.2.11 with 32 bytes of data:
Request timed out.
Reply from 2.2.2.11: bytes=32 time=6ms TTL=125Reply from 2.2.2.11: bytes=32 time=6ms TTL=125Reply from 2.2.2.11: bytes=32 time=7ms TTL=125Ping statistics for 2.2.2.11:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 6ms, Maximum = 7ms, Average = 6ms
C:\>ping 3.3.3.5Pinging3.3.3.5 with 32 bytes of data:
Reply from 3.3.3.5: bytes=32 time=10ms TTL=254Reply from 3.3.3.5: bytes=32 time=5ms TTL=254Reply from 3.3.3.5: bytes=32 time=5ms TTL=254Reply from 3.3.3.5: bytes=32 time=7ms TTL=254Ping statistics for 3.3.3.5:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 5ms, Maximum = 10ms, Average = 6ms
PC2 테스트
C:\>ping 1.1.1.11Pinging1.1.1.11 with 32 bytes of data:
Reply from 1.1.1.11: bytes=32 time=9ms TTL=125Reply from 1.1.1.11: bytes=32 time=8ms TTL=125Reply from 1.1.1.11: bytes=32 time=7ms TTL=125Reply from 1.1.1.11: bytes=32 time=9ms TTL=125Ping statistics for 1.1.1.11:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 7ms, Maximum = 9ms, Average = 8ms
C:\>ping 3.3.3.1Pinging3.3.3.1 with 32 bytes of data:
Reply from 3.3.3.1: bytes=32 time=6ms TTL=253Reply from 3.3.3.1: bytes=32 time=9ms TTL=253Reply from 3.3.3.1: bytes=32 time=13ms TTL=253Reply from 3.3.3.1: bytes=32 time=6ms TTL=253Ping statistics for 3.3.3.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 6ms, Maximum = 13ms, Average = 8ms
◾ Router에 RIP 설정 • 라우터가 알고있는 네트워크 정보를 광고하도록 지정한다. • Classful 알고리즘이므로 넷마스크를 입력하지 않는다. • 라우터에 연결된 모든 네트워크 정보를 모두 입력한다.
• 중간에 거쳐가는 라우터가 적은 쪽으로 이동
◾ 명령어 • router [rip | ospf | eigrp | bgp] : 각 프로토콜 설정모드로 진입 • network [IP] : 광고할 네트워크 주소를 지정 - 라우터에 연결된 모든 네트워크 주소를 입력한다. - rip은 넷마스크를 입력하지 않는다.
◾ 라우팅 정보 확인 • show ip route [rip]
◾ 불필요한 업데이트 금지 • R1이나 R2, R3의 GigbitEthernet 영역은 라우팅 정보를 수신할 라우터가 없는 곳이므로 해당 인터페이스로 라우팅 정보를 업데이트 할 필요가 없다. • passive‐interface [interface] : 해당 인터페이스로는 라우팅 정보를 업데이트하지 않는다.
C:\>ping 1.4.2.11Pinging1.4.2.11 with 32 bytes of data:
Request timed out.
Reply from 1.4.2.11: bytes=32 time=5ms TTL=126Reply from 1.4.2.11: bytes=32 time=6ms TTL=126Reply from 1.4.2.11: bytes=32 time=5ms TTL=126Ping statistics for 1.4.2.11:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 5ms, Maximum = 6ms, Average = 5ms
C:\>ping 1.4.3.11Pinging1.4.3.11 with 32 bytes of data:
Reply from 1.4.3.11: bytes=32 time=8ms TTL=126Reply from 1.4.3.11: bytes=32 time=6ms TTL=126Reply from 1.4.3.11: bytes=32 time=7ms TTL=126Reply from 1.4.3.11: bytes=32 time=6ms TTL=126Ping statistics for 1.4.3.11:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 6ms, Maximum = 8ms, Average = 6ms
RIP - extra
◾ 변경 정보 전달(Route Poisoning, Poisoning Reverse) • 라우터에 변경(장애나 수정)이 발생하면 즉시 수정된 라우팅 정보를 전달한다. • 이때 접근 이 불가능한 16 hops를 전달한다. • R3의 G0/0을 다운시키고 전달되는 라우팅 정보를 확인한다.
◾ RIP을 이용한 default route 정보 전달 • 정적 라우팅 환경에서는 라우터에 직접 default route 정보를 설정했으나 RIP에서는 default route 정보를 RIP를 통해 전달 가능하다. • 명령 [ default‐information originate ] : RIP을 통해 default route 정보를 전달한다.
◾ Default router 설정 • default route 설정은 정적 라우팅 설정과 동일하다. • 외부 네트워크로 local loopback 인터페이스를 이용한다. (가짜 인터페이스를 생성) - loopback 인터페이스를 인터넷(ISP) 연결로 간주한다. (default route로 지정)
- no shutdown 으로 활성화를 할 필요가 없다. (가짜 인터페이스라서)
◾ loopback 인터페이스를 활성화 한다.
• 가상 인터페이스로 no shutdown 명령이 불필요하다. • 10.10.10.0/24는 RIP 라우팅에 등록하지 않는다.
