CCNA 기초 - 라우터 기본설정 - 3

다음과 같이 장비를 연결하고 라우터의 기본 설정을 통해 PC-PC 를 연결하시오.

- 참고
PC - 다이렉트 케이즐 - switch - 다이렉트 케이블 - 라우터 - V.35 시리얼 케이블 - 라우터 - 다이렉트 케이블 - switch - 다이렉트 케이블 - PC


1. 라우터의 IP설정

1) 라우터 0의 IP 설정

Router>enable
Router#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#int fa0/0
- interface FastEthernet 0번 슬롯 / 0번 포트로 접근한다.

Router(config-if)#ip address 10.1.1.1 255.255.255.0
- 라우터 0의 FasrEthernet 0/0에 ip address : 10.1.1.1,  Subnet MASK : 255.255.255.0 을 입력한다.

Router(config-if)#no shutdown

%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
- FastEthernet 0/0 이 활성화 된 것을 확인 할 수 있다.

Router(config-if)#end
%SYS-5-CONFIG_I: Configured from console by console

Router#show ip int brief
Interface              IP-Address      OK?   Method    Status                        Protocol
FastEthernet0/0        10.1.1.1        YES   manual    up                              up
FastEthernet0/1    unassigned      YES   manual   administratively down   down
Serial0/0/0           unassigned      YES   manual   administratively down   down
Serial0/0/1           unassigned      YES   manual   administratively down   down
Vlan1                  unassigned      YES   manual   administratively down   down
Router#

2) 라우터 1의 IP 설정

Router>enable
Router#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#int fa0/0
Router(config-if)#ip address 10.1.2.1 255.255.255.0
Router(config-if)#no shutdown

%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
Router(config-if)#end
%SYS-5-CONFIG_I: Configured from console by console

Router#show ip int brief
Interface              IP-Address      OK?   Method    Status                        Protocol
FastEthernet0/0        10.1.2.1        YES   manual    up                              up
FastEthernet0/1    unassigned      YES   manual   administratively down   down
Serial0/0/0           unassigned      YES   manual   administratively down   down
Serial0/0/1           unassigned      YES   manual   administratively down   down
Vlan1                  unassigned      YES   manual   administratively down   down
Router#

------------------------------------------------------------------------------------------------------------------

2. 라우터의 serial port 구간을 위한 ip 설정

1) 라우터 0의 serial port IP 설정

Router(config)#interface serial 0/0/0
- serial 0번째 모듈 / 0번째 슬롯 / 0번째 포트로 접근한다.

Router(config-if)#ip address 10.1.12.1 255.255.255.0
Router(config-if)#no shutdown

%LINK-5-CHANGED: Interface Serial0/0/0, changed state to down
- 라우터 1과 연결이 되지 않았기 때문에 state가 down 상태가 되어 있다.

Router(config-if)#
%LINK-5-CHANGED: Interface Serial0/0/0, changed state to up
- 라우터 1의 설정이 완료되면 state는 up 상태가 된다.

Router(config-if)#

2) 라우터 1의 serial port IP 설정

Router(config)#interface serial 0/0/0
Router(config-if)#ip address 10.1.12.2 255.255.255.0
Router(config-if)#no shutdown

%LINK-5-CHANGED: Interface Serial0/0/0, changed state to up
Router(config-if)#

------------------------------------------------------------------------------------------------------------------

3. clock 동기화

- clock을 동기화는 serial cable 연결 중 V.35 DCE Cable 쪽에서만 해 줄 수 있다.

1) 라우터 0의 설정
Router(config-if)#clock rate 64000
- 라우터 0 과 라우터 1의 clock을 임의적으로 맞춘다.

Router(config-if)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up
Router(config-if)#no shutdown
Router(config-if)#end
%SYS-5-CONFIG_I: Configured from console by console

Router#show ip route
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
       i - IS-IS, 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

Gateway of last resort is not set

     10.0.0.0/24 is subnetted, 2 subnets
C       10.1.1.0 is directly connected, FastEthernet0/0
C       10.1.12.0 is directly connected, Serial0/0/0
Router#

2) 라우터 1의 설정

Router(config-if)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up
- 라우터 0의 clock 동기화로 인해 라우터 1의 clock이 동기화 되었다.

Router(config-if)#end
%SYS-5-CONFIG_I: Configured from console by console

Router#show ip route
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
       i - IS-IS, 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

Gateway of last resort is not set

     10.0.0.0/24 is subnetted, 2 subnets
C       10.1.2.0 is directly connected, FastEthernet0/0
C       10.1.12.0 is directly connected, Serial0/0/0
Router#

------------------------------------------------------------------------------------------------------------------

4. PC 의 ip설정

Windows 에서의 설정

네트워크 설정 -> 속성 -> TCP/IP 에서 ip address, subnet MASK, gateway 값을 입력해준다.
ping은 cmd에서 확인하면 된다.

Packet Tracer에서의 설정

1) pc0의 IP 설정

- pc0 -> config
- global setting -> gateway : 10.1.1.1 입력
- fastehernet -> ip address : 10.1.1.2, subnet mask : 255.255.255.0 입력

- Desktop -> command prompt
Packet Tracer PC Command Line 1.0
PC>ipconfig

IP Address......................: 10.1.1.2
Subnet Mask.....................: 255.255.255.0
Default Gateway.................: 10.1.1.1

PC>ping 10.1.1.1 - 라우터 0 과의 ping test
Pinging 10.1.1.1 with 32 bytes of data:

Reply from 10.1.1.1: bytes=32 time=26ms TTL=255
Reply from 10.1.1.1: bytes=32 time=8ms TTL=255
Reply from 10.1.1.1: bytes=32 time=8ms TTL=255
Reply from 10.1.1.1: bytes=32 time=7ms TTL=255

Ping statistics for 10.1.1.1:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 7ms, Maximum = 26ms, Average = 12ms
PC>

2) pc1의 ip 설정

- pc0 -> config
- global setting -> gateway : 10.1.2.1 입력
- fastehernet -> ip address : 10.1.2.2, subnet mask : 255.255.255.0 입력

- Desktop -> command prompt
Packet Tracer PC Command Line 1.0
PC>ipconfig

IP Address......................: 10.1.2.2
Subnet Mask.....................: 255.255.255.0
Default Gateway.................: 10.1.2.1

PC>ping 10.1.2.1 - 라우터 1 과의 ping test
Pinging 10.1.2.1 with 32 bytes of data:

Reply from 10.1.2.1: bytes=32 time=15ms TTL=255
Reply from 10.1.2.1: bytes=32 time=8ms TTL=255
Reply from 10.1.2.1: bytes=32 time=10ms TTL=255
Reply from 10.1.2.1: bytes=32 time=10ms TTL=255

Ping statistics for 10.1.2.1:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 8ms, Maximum = 15ms, Average = 10ms
PC>

------------------------------------------------------------------------------------------------------------------

5. 라우팅

- 실제적으로 라우터 0 과 라우터 1 을 연결시켜 주는 것이다.

Router#show ip int brief
Interface                IP-Address      OK?   Method   Status                        Protocol
FastEthernet0/0        10.1.1.1          YES   manual   up                              up
FastEthernet0/1     unassigned      YES   manual   administratively down   down
Serial0/0/0               10.1.12.1         YES   manual   up                              up
Serial0/0/1            unassigned      YES   manual   administratively down    down
Vlan1                   unassigned      YES   manual   administratively down    down
Router#

1) 라우터0 의 설정

Router#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#ip route 10.1.2.0 255.255.255.0 10.1.12.2
- ip route : static 경로 설정
- 10.1.2.0 255.255.255.0 : 목적지인 네트워크 IP 주소
- 10.1.12.2 : 라우터 1의 시리얼 포트 주소 (라우터 1로의 통신을 위해 무조건 이쪽으로 보내게 된다.)

Router(config)#end
%SYS-5-CONFIG_I: Configured from console by console

Router#show ip route
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
       i - IS-IS, 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

Gateway of last resort is not set

     10.0.0.0/24 is subnetted, 3 subnets
C       10.1.1.0 is directly connected, FastEthernet0/0
S       10.1.2.0 [1/0] via 10.1.12.2     
C       10.1.12.0 is directly connected, Serial0/0/0
Router#

2) 라우터 1의 설정

Router#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#ip route 10.1.1.0 255.255.255.0 10.1.12.1
Router(config)#end
%SYS-5-CONFIG_I: Configured from console by console
Router#show ip route
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
       i - IS-IS, 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

Gateway of last resort is not set

     10.0.0.0/24 is subnetted, 3 subnets
S       10.1.1.0 [1/0] via 10.1.12.1
C       10.1.2.0 is directly connected, FastEthernet0/0
C       10.1.12.0 is directly connected, Serial0/0/0
Router#

3) pc0 ping test

- Desktop -> command prompt
Packet Tracer PC Command Line 1.0
PC>ping 10.1.2.1 - 라우터 1 과의 ping test

Pinging 10.1.2.1 with 32 bytes of data:

Reply from 10.1.2.1: bytes=32 time=11ms TTL=254
Reply from 10.1.2.1: bytes=32 time=11ms TTL=254
Reply from 10.1.2.1: bytes=32 time=11ms TTL=254
Reply from 10.1.2.1: bytes=32 time=13ms TTL=254

Ping statistics for 10.1.2.1:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 11ms, Maximum = 13ms, Average = 11ms

PC>ping 10.1.2.2 - 라우터 1 에 연결된 pc1 과의 ping test

Pinging 10.1.2.2 with 32 bytes of data:

Reply from 10.1.2.2: bytes=32 time=25ms TTL=126
Reply from 10.1.2.2: bytes=32 time=23ms TTL=126
Reply from 10.1.2.2: bytes=32 time=19ms TTL=126
Reply from 10.1.2.2: bytes=32 time=20ms TTL=126

Ping statistics for 10.1.2.2:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 19ms, Maximum = 25ms, Average = 21ms
PC>

4) pc1 ping test

- Desktop -> command prompt
Packet Tracer PC Command Line 1.0
PC>ping 10.1.1.1 - 라우터 0 과의 ping test

Pinging 10.1.1.1 with 32 bytes of data:

Reply from 10.1.1.1: bytes=32 time=15ms TTL=254
Reply from 10.1.1.1: bytes=32 time=14ms TTL=254
Reply from 10.1.1.1: bytes=32 time=15ms TTL=254
Reply from 10.1.1.1: bytes=32 time=14ms TTL=254

Ping statistics for 10.1.1.1:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 14ms, Maximum = 15ms, Average = 14ms

PC>ping 10.1.1.2 - 라우터 0 에 연결된 pc0 과의 ping test

Pinging 10.1.1.2 with 32 bytes of data:

Reply from 10.1.1.2: bytes=32 time=24ms TTL=126
Reply from 10.1.1.2: bytes=32 time=16ms TTL=126
Reply from 10.1.1.2: bytes=32 time=21ms TTL=126
Reply from 10.1.1.2: bytes=32 time=23ms TTL=126

Ping statistics for 10.1.1.2:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 16ms, Maximum = 24ms, Average = 21ms
PC>

------------------------------------------------------------------------------------------------------------------

6) 설정저장
Router#copy running-config startup-config