Post on 08-Jan-2016
description
Cisco IOSCisco IOS Cisco, William Yeager 1986 Cisco Cisco Catalyst , Catalyst 2950 / 2960 3550 / 3560 Cisco IOS , ,
Cisco IOSCLIconsole portAux porttelnet -- in-band IOS EXEC sessionSDM
Cisco 250026002800 ISR, , SDM -- 2800, , 1800800 12.4 IOS SDM2800,
ISR Cisco Cisco , power-on self-test, POST, flash memory Cisco IOS IOS startup-config NVRAMreloadIOSRAM
ISR Cisco ()IOSIOS NVRAM startup-config RAM, running-config
ISR (2600) ISR ISR IOS NVRAM ISR ISR NVRAM , TFTP , setup mode, , , , setup , CLI SDM
Setup mode
ISR CLI Enter , , ,
ISR CLI, Enter , Router> , exec () , exec () Cisco , enable
Router# disable
logout
Global modeconfigure DRAM DRAMTFTP RAM
CLIline(config-line)#
, , Enter, Q ,
, , ,
, , , cr
, , show interface serial 0/0, ru2$
Cisco IOS ROM ( POST )Cisco IOS IOS
POSTNVRAMFlashDRAM
, ,
telnet (message of the day, MOTD) , telnetExec EXEC (incoming) (login) , MOTD , , , no banner login
MOTD
telnet (VTY) telnet enable enable secret enable ,
enable
last-resort TACACS , TACACS , TACACS , password 10.3 enable , enable secret , secret , , enable Use-tacacs TACACS
, , login no login , aux , , console vty telnet , , telnet
login , , , , login ,
EXEC (timeout) 0, , , ,
telnet Cisco IOS , 5 VTY 0 4, SFRouter VTY (telent) no login , telnet
SSH1. 2. ()3. 4. SSH 5. SSH 6. vty 7. SSH Telnet SSH
enable secret , enable ,
show running-config show interface
do IOS 12.3 , Cisco IOS , 12.3 , ,
12.4 IOS
Cisco 2522 Interface
2600 interface / ISR 2600interface / interface / /
IP IP
()
( EIGRP OSPF)
DRAM NVRAM
NVRAM
, NVRAM Ctrl + C CLI
show interface
show interfaceOKOKkeepalivekeepalive)keepaliveno shutdown
show interface
show ip interface IP
show ip interface brief keepalive
show protocols 1 2 , IP
show controllers ,
show controllers R1 R2 R1clockR1
show controllers keepalives R1
Cisco (SDM)SDMHTTPHTTPS Cisco 830 7301 SDM, 85087018002800 3800 SDM IPSec VPNSDM www.cisco.com/go/sdm SDM, www.cisco.com/pcgi-bin/tablebuild.pl/sdmISRSDMwww.cisco.com/pcgi-bin/tablebuild.pl/sdmtool-demodemo
SDM LAN ,
, , http://1.1.1.1,
HTTPSSDMHTTP/HTTPS 15 ()
HTTPSSDMSSH Telnet,
HTTPSSDM https://1.1.1.1 ,
HTTPSSDM / SDM ,
HTTPSSDM, Yes
HTTPSSDM,
HTTPSSDM SDM , ,
HTTPSSDM SDM
SDM Configure , , Create New Connection , LAN WAN
SDM Edit Interface / Connection ,
SDM ( LAN WAN , )
SDM, Additional Tasks , Router Properties
SDMMOTD enable secret , DHCP , DHCP pool Add DHCP pool