reload reload telnet [ip address] [password] en [password] reload sh version sh version show version of the router IOS software write mem write mem writes running config to startup config show diag show diag show diagnostic information show run show run show the routers running configuration show log show log show routers logs sh ip int brief sh ip int brief show all brief infor on all ip interfaces sh int sh int s0/0 show interface information Serial Interface sh int s0/0 sh int s0/1 MultiLink sh int m1 show service-module s0/0 sh service-module s0/0 DSU side of card show service-module s0/0 sh int multilink 1 sh int multilink 1 show int multilink [interface number] clear counters clear counters clear router information counters TFTP Server free tftp server solarwinds.net free tftp server solarwinds.net copy tftp flash copy tftp flash Address or name of remote host []? 10.5.2.12 Source filename []? c1700-ipvoice-mz.123-4.T2.bin sh flash copy tftp flash Address or name of remote host []? 10.5.2.12 Source filename []? c1700-ipvoice-mz.123-4.T2.bin //enter for destination file name sh flash //verify that flash is good //make sure there is only one file in the flash copy to and from TFTP server copy tftp running-config copy running-config tftp RESTORE copy running config from tftp to router copy tftp running-config BACKUP copy running config from router to tftp copy running-config tftp end end when using a mode like config t you can exit the mode with end sh int sum sh int sum show interface summary exit exit exit telnet session copy run start copy run start copies the running-config to the startup-config copy running-config startup-config DRAM - running config NVRAM - startup config sh start sh start show start erase start erase startup-config erase startup-config en en enable Prveleged Mode enable secret enable secret [password] en config t enable secret [password] Set password for priveleged mode no enable secret no enable secret disables privelege mode password no enable secret set telnet password config t line vty 0 4 login password [password] exit exit save mem config t line vty 0 4 [five virtual lines available] login password [password] set console or con password config t line con 0 login password [password] config t line con 0 login password [password] set auxiliary password config t line aux 0 login password [password] config t line aux 0 login password [password] config t config t configure the terminal banner ? banner ? show the four different banners that can be configured set MOTD banner config t banner motd # [banner text goes here] # set the message of the day banner the # is a delimitting character tells when the sting is done config t banner motd # [banner text goes here] # remove the motd banner no banner motd set login banner config t banner login # [banner text goes here] # set the login banner the # is a delimitting character tells when the sting is done config t banner login # [banner text goes here] # remove the login banner no banner login set ip address to ethernet interface int e0 ip address [ip address] [subnet mask] no shut description [description goes here] en config t int ethernet 0 [or int e0] ip address [ip address] [subnet mask] no shutdown description [description goes here] set ip address for token ring interface config t int to0 ip address [ip address] [subnet mask] ring-speed 16 no shut en config t int to0 [or int token ring 0] ring-speed 16 ip address [ip address] [subnet mask] no shutdown description [description goes here] set ip address for serial interface int s0 [or int serial 0] no shut description [description goes here] en config t int s0 [or int serial 0] no shut description [description goes here] serial interface as DCEconnection configt int s0 bandwidth 56 clock rate 56000 used for simulating a WAN link configt int s0 bandwidth 56 clock rate 56000 hostname config t hostname [Name of Host] set the hostname config t hostname [Name of Host] example config t hostname RouterX show ip route show ip route show ip route by default shows the directly connected routes ip route ip route [ip address to be routed] [subnet maske to be routed] [routed via this ip address] Creates a static route config t ip route [ip address to be routed] [subnet maske to be routed] [routed via this ip address] save run start Remove static route no ip route [ip address to be routed] [subnet maske to be routed] [routed via this ip address] save run start ip route default ip route 0.0.0.0 0.0.0.0 [routed via this ip address] ip classless Creates a default static route ip route route mask next hop config t ip route 0.0.0.0 0.0.0.0 [routed via this ip address] ip classless exit save run start Remove static default route config t no ip route [ip address to be routed] [subnet maske to be routed] [routed via this ip address] no ip classless exit save run start three characteristics make this default 1. ip classless 2. 0.0.0.0 3. 0.0.0.0 RIP config t router rip network [network id] Dynamic Routing with RIP example: config t router rip network 204.105.0.0 Ctrl + Z Config Terminal Mode Enable RIP Add the network number to advertise Ctrl + Z to end configuration Mode Disable RIP no router rip sh ip protocol sh ip protocol show ip protocol sh ip route sh ip route show ip route IGRP config t router igrp [autonomous system number] network [ip address] Dynamic Routing with IGRP config t router igrp [autonomous system number] network [ip address] example config t router igrp 10 network 123.456.0.0 telnet telnet [ipadddress] telnet [ip address or valid host name] Pressing Ctrl+Shift=6 while in a telnet session allows you to telnet to another router without disconnecting from original telnet session. To return to the original telnet session press Ctrl+Shift=6 then X show sessions Shows current telnet sessions. ping ping [ipaddress] ping [ip address or valid host name] hosts table ip host [name] [ipaddress] ip host [name] [ip address] example: ip host routerX 123.123.123.2 remove host entry no ip host [name] example: no ip host routerX Show the hosts table sh hosts sh cdp sh cdp Cisco Discovery Protocol sh cdp change the CDP update frequency config t cdp timer ? cdp timer 90 sh cdp ? sh cdp int sh cdp entry sh cdp neighbors IPX ipx routing Configure Internetworking Packet eXchange (IPX) configuring show protocol ---------------------------- enable ipx routing ---------------------------- config t ipx routing CTRL + Z sh prot config t int e0 ipx network 10 CTRL + Z copy run start sh ipx route sh ip int e0 ---------------------------- ping ---------------------------- sh cdp entry * sh cdp cdp neighbor detail ping [ipx address] example ping 40.0000.0c8d.5c9d turn off domain lookup config t no ip domain-lookup CTRL + Z ping 40.0000.0c8d.5c9d ---------------------------- round robin load ballancing load ballance over multiple paths ---------------------------- config t ipx maximum-paths? ipx maximum-paths 2 exit sh ipx route ---------------------------- secondary network address multiple frame types ---------------------------- config t CTRL + Z (enter commands one per line) int e0 ipx network 10a encapsulation ? ipx network 10a encapsulation arpa? ipx network 10a encapsulation arpa secondary sh ipx route sh ipx int sh prot access-list access-list ? access-list ? access-list 10 ? [permit host] access-list 10 permit 123.123.0.2 0.0.0.0 int e0 ip access-group 10 out CTRL + Z ------------------- Extended IP Access Lists ------------------- config t CTRL+Z no access-list 10 int e0 no ip access-group 10 out CTRL + Z access-list 110 deny tcp host 123.123.0.2 host 123.123.10.2 eq telnet access-list 110 permit ip any 0.0.0.0 255.255.255.255 int s0 ip access-group 110 in CTRL + Z frame-relay switching frame-relay switching --------------------------------- Frame Relay Configuration DLCI numbers identify the (Permanent Virtual Circuit) PVC of each virtual circuit --------------------------------- int s0 encap frame-relay frame-relat intf-type dce int s1 encap frame relay frame-relay intf-type dce int s0 frame-relay interface-dlci 16 int s1 frame-relay interface-dlci 17 show frame map show frame pvc show run Cisco Catalyst 1900 Switch see help Managing a Cisco Switch K enable sh run sh ver config t hostname 1900A CTRL+ Z (enable privelege exec mode) sh ip config t ip address 123.123.0.2 255.255.255.0 ip default-gateway 123.123.0.1 CTRL + Z sh ip ping 123.123.0.1 sh mac-address-table delete nvram (deletes startup-config) clock clock set clock ? clock set ? clock set 11:04:35 ? show clock Navigation see help CTRL+A [beginning of the line] CTRL+E [end of the line] CTRL+A then CTRL+F [move forward one character] CTRL+B [move back one character] CTRL+D [delete characters] BACKSPACE [delete characters] CTRL+R [redisplay the last line you typed] CTRL+U [delete a single line CTRL+W [delete a single word CTRL+P [redisplay the last command] Up Arrow [repeat the last command] TAB [complete command] CTRL+Z [end configuration mode] sh history terminal history size terminal no editing [turn off advanced editing] terminal editing [turn on advanced editing] Memory see help 4 internal Components of a Cisco Router 1. RAM Work Area Running IOS 2. ROM Boot Post Core-level operating system 3. Flash IOS 4. NVRAM Router Configuration HyperTerminal Settings hypertrm.exe hypertrm.exe COM1 or COM2 9600 Baud [Bits per Second] 8 [Data Bits] None [Parity] 1 [Stop bits] none [Flow Control] Command Modes see help There are two command modes. 1. user exec routername> 2. priveleged exec routername#