1 Router 동작 mode (1/2) User Mode Router 동작 상태, Interface 의 상태, 현황등을 check 할 수 있는 command 사용 가능 Router Configuration 의 변경은 불가 Privileged Mode Router 의 Full.

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Presentation transcript:

1 Router 동작 mode (1/2) User Mode Router 동작 상태, Interface 의 상태, 현황등을 check 할 수 있는 command 사용 가능 Router Configuration 의 변경은 불가 Privileged Mode Router 의 Full Command 가 사용 가능한 Mode Router Configuration, Setup 이 가능한 Mode Connected to User Access Verification Password: ROUTER> ROUTER>enable Password: ROUTER# User Mode Prompt Privileged Mode Prompt

2 Router 동작 mode (2/2) user mode Router> 제한된 명령어만을 이용 previledged mode Router# 모든 명령어를 이용할 수 있고 configuration file 조정할 수 있음 setup mode 초기 환경설정 previledged mode 에서 명령어 setup 을 입력하면 됨 RXBOOT mode 비밀번호를 잃어버렸거나 Flash 의 OS 가 지워지는 등의 경우 이용 global configuration mode Router(config)# 라우터운영 전체에 영향을 미치는 요소들을 조정할 수 있음. 하위 configuration mode 로 전환할 수 있음 하위 configuration mode Router(config-???)# 영역별 환경 설정

3 Command Help 사용법 – 1 현재 사용 mode prompt 상에서 ‘?’ 를 type User mode, priviledged mode, global configuration mode 에 따라 다름 예 > Previledged mode 의 command help

4 Command help 특징 Symbolic translation Keyword completion Command prompting Syntax checking ROUTER#c? calendar cd clear clock cmt configure connect copy ROUTER#cale ROUTER#calendar ? set Set the time and date ROUTER#calendar set ? hh:mm:ss Current Time ROUTER#calendar set 12:10:12 ? Day of the month MONTH Month of the year ROUTER#calendar set 12:10: ^ % Invalid input detected at '^' marker. ROUTER# Press [TAB]

5 Command edit 사용법 Router Edit key 사용법 Ctrl-A : Command line 의 시작점으로 이동 Ctrl-E : Command line 의 끝으로 이동 Esc-F : One word 앞으로 이동 Esc-B : One word 뒤로 이동 Ctrl-F : One character 앞으로 이동 Ctrl-B : One character 뒤로 이동 Command 관련 key 사용법 Ctrl-P (or ↑ key) : 바로 전에 Type 한 word 를 recall Ctrl-N (or ↓ key) : 가장 최근에 Type 한 command 를 recall Tab : 입력한 문자열에 해당하는 Command 로 완결

6 Router 내부 configuration 구성 ROMFlashNVRAMRAM Auxiliary Console Interface [ RAM ] IOS 실행 command 실행 configuration file Routing Table Buffers [ NVRAM ] Backup Configuration File [ Flash ] OS [ ROM ] Bootstrap program& Sub-OS

7 Router 구성 RAM Interfaces LAN Interfaces (e, t, f) WAN Interfaces (s, hssi) Console Auxiliary bootstrap program IOS(Internetwork OS)실행명령어 programactiveconfigfiletablesbuffers NVRAMFlashROM backup config file IOS bootstrapprogram subsetIOS

8 Router 상태 확인 명령어 RAM Interfaces LAN Interfaces (e, t, f) WAN Interfaces (s, hssi) Console Auxiliary bootstrap program IOS(Internetwork OS)실행명령어 programactiveconfigfiletablesbuffers NVRAMFlashROM backup config file IOS bootstrapprogram subsetIOS Router#show version Router#show process [cpu] Router#show protocols Router#show running-config Router#show memory Router#show stacks Router#show buffers Router#show startup-config Router#show config Router#show interface Router#show interface serial 0 Router#show flash

9 Router 동작 mode 에 따른 특징 User Mode 일반적인 Router Monitor 용 Command 사용가능 ex) ROUTER> show clock Privileged Mode Privileged 일반 Mode  상세한 Monitor 용 Command 사용가능  Router debugging, testing 가능  ex) ROUTER# show processes cpu Global config Mode Router 의 전체적이고 일반적인 Configuration Command 가능 ex) ROUTER# (config)hostname samsung 세부 config Mode : Routing protocol setup, Interface setup 과 같은 부분별 setup Command 가능 ex) ROUTER# (config-if)ip address ROUTER# (config-router)network

10 Show command ‘Show’ command : Router 에서 수행중인 Information 을 출력 ‘Show’ command 다음에 오는 중요 sub command 들 access-lists : Packet Filtering 조건문을 보여주는 명령어 clock : System clock 을 보여주는 명령어 configuration : 현재 router 설정 사항을 보여주는 명령어 history : 현재까지 입력한 command 의 history 를 보여주는 명령어 interfaces : Router 에 장착된 LAN, WAN interface 의 상황을 보여줌 ip : IP packet 서비스에 관련된 정보를 보여주는 명령어 line : Router 에 설정된 VTY( 가상터미널 ) line 의 정보를 보여줌 logging : Router 에 저장된 event 메세지를 보여주는 명령어 memory : Router 의 Memory 의 사용 현황을 보여주는 명령어 processes : Router 의 수행중인 process 및 CPU 사용현황을 보여줌 protocols : Router 에서 수행중인 protocol 들의 현황을 보여줌 users : Router 에 login 된 사용자 현황을 보여줌 version : Router 의 ROM 및 IOS 의 정보를 보여주는 명령어

11 Show configuration Show running-config : 현재 Router memory 에 수행중인 configuration 출력 Show startup-config : NVRAM(Nonvolatile RAM) 에 저장된 configuration Show configuration = show startup-configuration

12 Show interfaces (1/3) show interfaces : 현재 Router 의 모든 Interface 들의 상황 출력 show interfaces 해당 interface monitor 시 show interfaces fastethernet0/0 : FastEthernet type 0 번 port show interfaces serial 1 : Fast serial type 1 번 port show interfaces fastethernet 2/1 : FastEthernet type 2 번 Slot 의 1 번 port FastEthernet0/1 FastEthernet0/0 Console Serial

13 Show interfaces (2/3)

14 Show interfaces (3/3)

15 Show ip IP protocol 과 관련된 정보를 보기위한 Pre command show ip 다음의 중요 Sub command 들 Show arp : Router 의 ARP table 의 내용을 보여줌 ( = show arp) Show bgp, egp, eigrp, ospf : 각각의 Routing protocol 에 대한 정보를 보여줌 Show interface : IP protocol 이 수행되는 interface 의 정보를 보여줌 Show route : Router 의 IP 정보에 대한 Routing table 정보를 보여줌. Show traffic : Router 에서의 IP packet 의 traffic 정보를 보여줌.

16 Show ip route OSPF OSPF Inter Area N/W address 에 대한 Routing table 의 Routing 정보를 보여줌 특정 N/W address 나 IP address 의 Routing 정보를 볼 경우 show ip route [ IP network address / IP address ]

17 Show arp Router 의 ARP table 출력

18 Show ip traffic IP packet 에 대한 통계값 출력

19 Show logging Router 에 저장된 Router Event Message 를 보여줌 CISCO Serial 1 Down Ethernet 0 Protocol Down Router Config 변경 From IP : Other Network

20 show processes : Router 의 수행 process 들의 정보를 보여줌 Show processes (1/2)

21 Show processes (2/2) show processes cpu : Router 의 process 별 CPU 사용률을 보여줌

22 Show memory Router memory 의 사용내역, 현황 정보를 보여줌

23 현재 Router 에서 수행되는 OSI 3 Layer protocol 들의 상태를 출력 Ex) IP, DECnet, IPX, AppleTalk … protocols Show protocols

24 Show version