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Cisco Router Commands

In credentials of your CCNA exam, we wish to have certain we cover a assorted concepts which we could see upon your Cisco CCNA exam. So to support you, subsequent we will plead a CCNA concepts of Cisco Router Commands. As we swell by your CCNA examination studies, we am certain with exercise we will find this subject becomes easier. So even yet it might be a formidable judgment as well as treacherous during initial to sense all a Cisco commands, keep during it as no a single pronounced removing your Cisco acceptance would be easy!

Below we have listed all a CCNA router commands we will need to know for your CCNA exam.

ROUTER COMMANDS

TERMINAL CONTROLS:

* Config# depot modifying - allows for lengthened modifying commands * Config# depot guard - shows outlay upon telnet event * Config# depot ip netmask-format hexadecimal|bit-count|decimal - changes a format of subnet masks

HOST NAME:

* Config# hostname ROUTER_NAME

BANNER:

* Config# ensign motd # TYPE MESSAGE HERE # - # can be replaced for any character, contingency begin as well as finish a message

DESCRIPTIONS:

* Config# outline THIS IS THE SOUTH ROUTER - can be entered during a Config-if level

CLOCK:

* Config# time timezone Central -6 # time set hh:mm:ss dd month yyyy - Example: time set 14:35:00 twenty-five Aug 2003

CHANGING THE REGISTER:

* Config# config-register 0x2100 - ROM Monitor Mode * Config# config-register 0x2101 - ROM foot * Config# config-register 0x2102 - Boot from NVRAM

BOOT SYSTEM:

* Config# foot complement tftp FILENAME SERVER_IP - Example: foot complement tftp 2600_ios.bin 192.168.14.2 * Config# foot complement ROM * Config# foot complement peep - Then - Config# reload

CDP:

* Config# cdp run - Turns CDP upon * Config# cdp holdtime 180 - Sets a time which a device remains. Default is 180 * Config# cdp timer thirty - Sets a refurbish timer.The default is 60 * Config# int Ethernet 0 * Config-if# cdp capacitate - Enables cdp upon a interface * Config-if# no cdp capacitate - Disables CDP upon a interface * Config# no cdp run - Turns CDP off

HOST TABLE:

* Config# ip horde ROUTER_NAME INT_Address - Example: ip horde lab-a 192.168.5.1 -or- * Config# ip horde RTR_NAME INT_ADD1 INT_ADD2 INT_ADD3 - Example: ip horde lab-a 192.168.5.1 205.23.4.2 199.2.3.2 - (for e0, s0, s1)

DOMAIN NAME SERVICES:

* Config# ip domain-lookup - Tell router to lookup domain names * Config# ip name-server 122.22.2.2 - Location of DNS server * Config# ip domain-name cisco.com - Domain to attach to finish of names

CLEARING COUNTERS:

* # transparent interface Ethernet 0 - Clears counters upon a specified interface * # transparent counters - Clears all interface counters * # transparent cdp counters - Clears CDP counters

STATIC ROUTES:

* Config# ip track Net_Add SN_Mask Next_Hop_Add - Example: ip track 192.168.15.0 255.255.255.0 205.5.5.2 * Config# ip track 0.0.0.0 0.0.0.0 Next_Hop_Add - Default track -or- * Config# ip default-network Net_Add - Gateway LAN network

IP ROUTING:

* Config# ip routing - Enabled by default * Config# router slice -or- * Config# router igrp 100 * Config# interface Ethernet 0 * Config-if# ip residence 122.2.3.2 255.255.255.0 * Config-if# no shutdown

IPX ROUTING:

* Config# ipx routing * Config# interface Ethernet 0 * Config# ipx maximum-paths 2 - Maximum subsequent to metric paths used * Config-if# ipx network 222 encapsulation corrupt - Also Novell-Ether, SNAP, ARPA upon Ethernet. Encapsulation HDLC upon sequence * Config-if# no shutdown

ACCESS LISTS:

IP STANDARD:

* Config# access-list 10 assent 133.2.2.0 0.0.0.255 - concede all src ip's upon network 133.2.2.0 -or- * Config# access-list 10 assent horde 133.2.2.2 - specifies a specific horde -or- * Config# access-list 10 assent any - allows any residence * Config# int Ethernet 0 * Config-if# ip access-group 10 in - additionally available: out

IP EXTENDED:

* Config# access-list 101 assent tcp 133.12.0.0 0.0.255.255 122.3.2.0 0.0.0.255 eq telnet -protocols: tcp, udp, icmp, ip (no sockets then), between others -source afterwards finish residence -eq, gt, lt for more aged -sockets can be numeric or name (23 or telnet, twenty-one or ftp, etc) -or- * Config# access-list 101 repudiate tcp any horde 133.2.23.3 eq www -or- * Config# access-list 101 assent ip any any * Config# interface Ethernet 0 * Config-if# ip access-group 101 out

IPX STANDARD:

* Config# access-list 801 assent 233 AA3 - source network/host afterwards finish network/host -or- * Config# access-list 801 assent -1 -1 - "-1" is a same as "any" with network/host addresses * Config# interface Ethernet 0 * Config-if# ipx access-group 801 out

IPX EXTENDED:

* Config# access-list 901 assent corrupt 4AA all 4BB all - Permit custom src_add hollow dest_add hollow -"all" includes all sockets, or can operate hollow numbers -or- * Config# access-list 901 assent any any all any all -Permits any custom with any residence upon any hollow to go anywhere * Config# interface Ethernet 0 * Config-if# ipx access-group 901 in

IPX SAP FILTER:

* Config# access-list 1000 assent 4aa 3 - "3" is a operate sort -or- * Config# access-list 1000 assent 4aa 0 - operate sort of "0" matches all services * Config# interface Ethernet 0 * Config-if# ipx input-sap-filter 1000 - filter practical to incoming packets -or- * Config-if# ipx output-sap-filter 1000 - filter practical to effusive packets

NAMED ACCESS LISTS:

* Config# ip access-list customary LISTNAME -can be ip or ipx, customary or lengthened -followed by a assent or repudiate list * Config# assent any * Config-if# ip access-group LISTNAME in -use a list name instead of a list series -allows for a incomparable volume of access-lists

PPP SETUP:

* Config-if# encapsulation ppp * Config-if# ppp authentication guy mix -order in which they will be used -only attempted with a authentification listed -if a single fails, afterwards tie is consummated * Config-if# exit * Config# username Lab-b cue 123456 -username is a router which will be joining to this a single -only specified routers can bond -or- * Config-if# ppp guy hostname ROUTER * Config-if# ppp guy cue 123456 -if this is set upon all routers, afterwards any of them can bond to any alternative -set same upon all for easy configuration

ISDN SETUP:

* Config# isdn switch-type basic-5ess - energetic by telecom * Config# interface sequence 0 * Config-if# isdn spid1 2705554564 - isdn "phonenumber" of line 1 * Config-if# isdn spid2 2705554565 - isdn "phonenumber" of line 2 * Config-if# encapsulation PPP - or HDLC, LAPD

DDR - 4 Steps to environment up ISDN with DDR

1. Configure switch sort Config# isdn switch-type basic-5ess - can be finished during interface config 2. Configure immobile routes Config# ip track 123.4.35.0 255.255.255.0 192.3.5.5 - sends trade unfailing for 123.4.35.0 to 192.3.5.5 Config# ip track 192.3.5.5 255.255.255.255 bri0 - specifies how to get to network 192.3.5.5 (through bri0) 3. Configure Interface Config-if# ip residence 192.3.5.5 255.255.255.0 Config-if# no shutdown Config-if# encapsulation ppp Config-if# dialer-group 1 - relates dialer-list to this interface Config-if# dialer map ip 192.3.5.6 name Lab-b 5551212 bond to lab-b during 5551212 with ip 192.3.5.6 if there is engaging trade can additionally operate "dialer fibre 5551212" instead if there is usually a single router to bond to 4. Specify engaging trade Config# dialer-list 1 ip assent any -or- Config# dialer-list 1 ip list 101 - operate a access-list 101 as a dialer list 5. Other Options Config-if# hold-queue 75 - reserve 75 packets prior to dialing Config-if# dialer load-threshold 125 possibly -load indispensable prior to second line is brought up -"125" is any series 1-255, where % bucket is x/255 (ie 125/255 is about 50%) -can check by in, out, or possibly Config-if# dialer idle-timeout 180 -determines how prolonged to stay resting prior to terminating a event -default is 120

FRAME RELAY SETUP:

* Config# interface sequence 0 * Config-if# encapsulation frame-relay - cisco by default, can shift to ietf * Config-if# frame-relay lmi-type cisco - cisco by default, additionally ansi, q933a * Config-if# bandwidth 56 * Config-if# interface sequence 0.100 point-to-point - subinterface * Config-if# ip residence 122.1.1.1 255.255.255.0 * Config-if# frame-relay interface-dlci 100 -maps a dlci to a interface -can supplement BROADCAST and/or IETF during a finish * Config-if# interface sequence 1.100 multipoint * Config-if# no inverse-arp - turns IARP off; great to do * Config-if# frame-relay map ip 122.1.1.2 48 ietf promote -maps an IP to a dlci (48 in this case) -required if IARP is incited off -ietf as well as promote have been discretionary * Config-if# frame-relay map ip 122.1.1.3 54 broadcast

SHOW COMMANDS

* Show access-lists - all entrance lists upon a router * Show cdp - cdp timer as well as holdtime magnitude * Show cdp entrance * - same as subsequent * Show cdp neighbors item - sum of nearby resident with ip supplement as well as ios chronicle * Show cdp neighbors - id, internal interface, holdtime, capability, height portid * Show cdp interface - int's using cdp as well as their encapsulation * Show cdp trade - cdp packets sent as well as perceived * Show controllers sequence 0 - DTE or DCE standing * Show dialer - series of times dialer fibre has been reached, alternative stats * Show peep - files in peep * Show frame-relay lmi - lmi stats * Show frame-relay map - immobile as well as energetic maps for PVC's * Show frame-relay pvc - pvc's as well as dlci's * Show story - commands entered * Show hosts - essence of horde list * Show int f0/26 - stats of f0/26 * Show interface Ethernet 0 - uncover stats of Ethernet 0 * Show ip - ip config of switch * Show ip access-lists - ip access-lists upon switch * Show ip interface - ip config of interface * Show ip protocols - routing protocols as well as timers * Show ip track - Displays IP routing list * Show ipx access-lists - same, usually ipx * Show ipx interfaces - RIP as well as SAP info being sent as well as received, IPX addresses * Show ipx track - ipx routes in a list * Show ipx servers - SAP list * Show ipx trade - RIP as well as SAP info * Show isdn active - series with active standing * Show isdn standing - shows if SPIDs have been valid, if continuous * Show mac-address-table - essence of a energetic list * Show protocols - routed protocols as well as net_addresses of interfaces * Show running-config - dram config record * Show sessions - connectors around telnet to remote device * Show startup-config - nvram config record * Show depot - shows story distance * Show case a/b - case stat of pier 26/27 * Show chronicle - ios info, uptime, residence of switch * Show vlan - all configured vlan's * Show vlan-membership - vlan assignments * Show vtp - vtp configs

I goal we found this essay to be of operate as well as it helps we hope for for your Cisco CCNA certification. we am certain we will fast find out which hands-on genuine universe knowledge is a most appropriate approach to concrete a CCNA concepts in your conduct to assistance we pass your CCNA exam!

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