fasttrack-2a- router dev & confg

7/21/2019 FastTrack-2a- Router Dev & Confg

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Router Device &Configuration


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What is Router?


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Router Paths and Packet Switching $s a pac)et trave%s fro" one net*or)ing evice to another

+The ource an Destination IP aressesNEVER change

+The ource & Destination ,$C aressesCHANGEas pac)etis for*are fro" one router to the ne-t.


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Internal Configuration Co!onents


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Router Internal Co!onents


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Internal Co!onents of a "#$$ Router


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Router E%ternal Connections


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Router &E' Indicators

Cisco routers use ED inicators to proviestatus infor"ation. ED inicators *i%% var! for

ifferent Cisco router "oe%s.


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Co!uter or (erinal ConsoleConnection



)ode Connection to Console orAu%iliar* Port



Esta+lish a Console Session

$%% Cisco routers inc%ue anEI$3TI$2(2 as!nchronousseria% conso%e port. Theconso%e port is an R54.

6se an R54 to R54 ro%%overca'%e *ith a fe"a%e R54 toD aapter to connect a PCto the conso%e port



Console Port Connections

Configure ter"ina% e"u%ation soft*are on thePC for the fo%%o*ing8

The appropriate co" port

+ /00 'au

+ ata 'its+ 9o parit!

+ 1 stop 'it

+ 9o f%o* contro%

Connect a ro%%over ca'%e to the router

conso%e port :R54 connector;.

Connect the other en of the ro%%overca'%e to the R54 to D aapter

$ttach the fe"a%e D aapter to a PC.


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< Configurations can coefro an* sources,

< Configurations will act in

de-ice eor*,

E%ternal Configuration Sources


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Cisco 'e-ice Startu!


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E%aining the Initial .ootu! /ut!ut


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+6nconfigure =ersus Configure Router

.ootu! /ut!ut fro the Router


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Router#setup

--- System Configuration Dialog ---

Continue with configuration dialog? [yes/no]: yes

t any point you may enter a !uestion mar" ? for help$%se ctrl-c to a&ort configuration dialog at any prompt$Default settings are in s!uare &rac"ets []$

'asic management setup configures only enough connecti(ityfor management of the system) e*tended setup will as" youto configure each interface on the system

+ould you li"e to enter &asic management setup? [yes/no]: no

Setu!0 (he Initial

Configuration 'ialog


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Setu! Initial

Glo+al ParaetersConfiguring glo&al parameters:

,nter host name [Router]:wgroc

.he ena&le secret is a password used to protect access to

pri(ileged ,,C and configuration modes$ .his password) after entered) &ecomes encrypted in the configuration$ ,nter ena&le secret: cisco

.he ena&le password is used when you do not specify an ena&le secret password) with some older software (ersions) and some &oot images$ ,nter ena&le password: sanfran

.he (irtual terminal password is used to protect access to the router o(er a networ" interface$ ,nter (irtual terminal password: san0ose Configure S123 1etwor" 2anagement? [no]:

Configuring glo&al parameters:

,nter host name [Router]:wgroc

.he ena&le secret is a password used to protect access to

pri(ileged ,,C and configuration modes$ .his password) after entered) &ecomes encrypted in the configuration$ ,nter ena&le secret: cisco

.he ena&le password is used when you do not specify an ena&le secret password) with some older software (ersions) and some &oot images$ ,nter ena&le password: sanfran

.he (irtual terminal password is used to protect access to the router o(er a networ" interface$ ,nter (irtual terminal password: san0ose Configure S123 1etwor" 2anagement? [no]:


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Setu! Interface Suar*

4irst) would you li"e to see the current interface summary? [yes]:

5nterface 53-ddress 67? 2ethod Status 3rotocol

'R58 unassigned 9,S unset administrati(ely down down

'R58: unassigned 9,S unset administrati(ely down down

'R58:; unassigned 9,S unset administrati(ely down down

,thernet8 unassigned 9,S unset administrati(ely down down

Serial8 unassigned 9,S unset administrati(ely down down

4irst) would you li"e to see the current interface summary? [yes]:

5nterface 53-ddress 67? 2ethod Status 3rotocol

'R58 unassigned 9,S unset administrati(ely down down

'R58: unassigned 9,S unset administrati(ely down down

'R58:; unassigned 9,S unset administrati(ely down down

,thernet8 unassigned 9,S unset administrati(ely down down

Serial8 unassigned 9,S unset administrati(ely down down

Interfaces 1ound 'uring Startu!


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Setu! Interface

Paraeters'R5 interface needs isdn switch-type to &e configured


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Setu! Scri!t Re-iew and 2se.he following configuration command script was created:

hostname Routerena&le secret II/CC"IBrJDwD1e!"*46$"*CA>8ena&le password sanfranline (ty 8 B

password san0oseno snmp-ser(erKno appletal" routingno decnet routingip routingno clns routingno ip* routing

no (ines routingno *ns routingno apollo routingisdn switch-type &asic-ess

interface 'R58shutdownno ip addressK

interface ,thernet8no shutdownip address 8$$$A ;$;$;$8no mop ena&ledKinterface Serial8shutdownno ip address

3te%t oitted4end

[8] >o to the 56S command prompt without sa(ing this config$[] Return &ac" to the setup without sa(ing this config$[;] Sa(e this configuration to n(ram and e*it$

,nter your selection [;]:


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Router 2ser Interface )odes


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Coand5&ine Interface

Coand )odes


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+$ CI is use to enter co""ans.

+>perations var! on ifferent internet*or)ing

evices.+6sers t!pe or paste entries in the conso%e

co""an "oes.

+Enter )e! instructs evice to parse ane-ecute the co""an.

+T*o pri"ar! E?EC "oes are user "oean privi%ege "oe.

+Co""an "oes have istinctive pro"pts.

Cisco I/S 2ser Interface 1unctions


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&ogging In to the Router


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+6ou can a++re-iate a coand to the fewest characters that ake auni7ue character string,

Router 2ser5)ode Coand &ist

wgrocL?,*ec commands: access-ena&le Create a temporary ccess-Mist entry atmsig ,*ecute tm Signalling Commands cd Change current de(ice clear Reset functions

connect 6pen a terminal connection dir Mist files on gi(en de(ice disa&le .urn off pri(ileged commands disconnect Disconnect an e*isting networ" connection ena&le .urn on pri(ileged commands e*it ,*it from the ,,C help Description of the interacti(e help system lat 6pen a lat connection loc" Moc" the terminal login Mog in as a particular user logout ,*it from the ,,C-- 2ore --


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wgroc#?,*ec commands: access-ena&le Create a temporary ccess-Mist entry access-profile pply user-profile to interface access-template Create a temporary ccess-Mist entry &fe 4or manual emergency modes setting cd Change current directory

clear Reset functions cloc" 2anage the system cloc" configure ,nter configuration mode connect 6pen a terminal connection copy Copy from one file to another de&ug De&ugging functions Fsee also unde&ugG delete Delete a file dir Mist files on a filesystem disa&le .urn off pri(ileged commands

disconnect Disconnect an e*isting networ" connection ena&le .urn on pri(ileged commands erase ,rase a filesystem e*it ,*it from the ,,C help Description of the interacti(e help system-- 2ore --

< 6ou can co!lete a coand string +* entering the uni7ue character

string8 then !ressing the (a+ ke*,

Router Pri-ileged5)ode Coand &ist


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Router Conte%t5Sensiti-e Hel!

Router#clo"

.ranslating NCM67N

O %n"nown command or computer name) or una&le to find computer address

Router#cl?

clear cloc"

Router#cloc"

O 5ncomplete command$

Router#cloc" ?

set Set the time and date

Router#cloc" set


Router#PCtrl-3Lcloc" set ?

hh:mm:ss Current .ime


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Router Conte%t5Sensiti-e Hel! 9cont,:Router# clo"

.ranslating NCM67N

O %n"nown command or computer name) or una&le to find computer address

Router#

clear cloc"

Router#


Router#

set Set the time and date

Router#


Router#

hh:mm:ss Current .ime

Router# cloc" set Q:=:88


Router# cloc" set Q:=:88 ?

P-AL Day of the month261. 2onth of the year

Router# cloc" set Q:=:88 8B E

O 5n(alid input detected at the mar"er

Router# cloc" set Q:=:88 8B ugust


Router# cloc" set Q:=:88 8B ugust ?

PQQA-;8AL 9ear

< Coand

Pro!ting

< S*nta% Checking

< CoandPro!ting


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9Autoatic scrolling of long lines,:

Ctrl5A )o-e to the +eginning of the coand line,

Ctrl5E )o-e to the end of the coand line,

Esc5. )o-e +ack one word,

Esc51 )o-e forward one word,

Ctrl5. )o-e +ack one character,

Ctrl51 )o-e forward one character,

Ctrl5' 'elete a single character,

RouterLI(alue for customers) employees) and partners$

Enhanced Editing Coands 9cont,:


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Ctrl5P or 2! Arrow Recalls last 9!re-ious: coands

Ctrl5N or 'own Arrow Recalls ore recent coands

show history Shows coand +uffer contents

history siJe line Sets the +uffer si;e !eranentl*

Router Coand Histor*

terminal history siJe lines Sets session coand +uffer si;e


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(he 2ser Interface Error Indicator


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Configuring a Router Nae


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Configuring )essage5of5the5'a* 9)/(':


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&ogin .anners


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Configuring Router Passwords


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/ther Console5&ine Coands

RouterFconfigG#line console 8RouterFconfig-lineG#e*ec-timeout 8 8

RouterFconfigG#line console 8RouterFconfig-lineG#logging synchronous

< Pre-ents console session tieout

< Redis!la*s interru!ted console in!ut


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Interface Configuration Coands


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Configuring an Ethernet Interface


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Configuring Interface 'escri!tions

$n interface escription shou% ientif!i"portant infor"ation such as a router# a

circuit nu"'er# or a specific net*or) seg"ent.


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Enter @%o'a%Configuration ,oe

RouterFconfig-ifG#cloc" rate =B888RouterFconfig-ifG#

RouterFconfigG#interface serial 8

RouterFconfig-ifG#

Router#configure terminalRouterFconfigG#

RouterFconfig-ifG#&andwidth =BRouterFconfig-ifG#e*itRouterFconfigG#e*itRouter#

S!ecif* Interface

Set Clock Rate9on 'CE interfaces onl*:

Set .andwidth9recoended:

Configuring a Serial Interface


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Router#configure terminal

RouterFconfigG#interface serial 8

RouterFconfig-ifG#no shutdown

OM517-A-%3D6+1: 5nterface Seria8) changed state to upOM51,3R6.6--%3D6+1: Mine 3rotocol on 5nterface Serial8) changed state to up

,D: 5nterface Serial8) changed state to administrati(ely downOM51,3R6.6--%3D6+1: Mine protocol on 5nterface Serial8) changed state to down

< Adinistrati-el* turns off an interface

'isa+ling or Ena+ling an Interface


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Router show interfaces CoandRouter#show interfaces,thernet8 is up) line protocol is upardware is Mance) address is 88e8$ed$ae;f F&ia 88e8$ed$ae;fG

5nternet address is 8$$$/;B 2.% 88 &ytes) '+ 8888 7&it) DM9 888 usec) rely ;/;) load /; ,ncapsulation R3) loop&ac" not set) "eepali(e set F8 secG R3 type: R3) R3 .imeout 8B:88:88

Mast input 88:88:8) output 88:88:8E) output hang ne(er Mast clearing of Nshow interfaceN counters ne(er Tueueing strategy: fifo 6utput !ueue 8/B8) 8 dropsH input !ueue 8/) 8 drops minute input rate 8 &its/sec) 8 pac"ets/sec minute output rate 8 &its/sec) 8 pac"ets/sec EEAA pac"ets input) ;=BQ &ytes) 8 no &uffer Recei(ed B;A8E &roadcasts) 8 runts) 8 giants) 8 throttles

input errors) 8 CRC) 8 frame) 8 o(errun) ignored) 8 a&ort 8 input pac"ets with dri&&le condition detected QB pac"ets output) AQ;Q=Q= &ytes) 8 underruns 8 output errors) 8 collisions) interface resets 8 &a&&les) 8 late collision) B deferred 8 lost carrier) 8 no carrier 8 output &uffer failures) 8 output &uffers swapped out


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Inter!reting the Interface Status


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Verif*ing a Serial Interface Configuration

Router#show interface serial 8Serial8 is up) line protocol is upardware is D=B8

5nternet address is 8$B8$B$;/;B 2.% 88 &ytes) '+ =B 7&it) DM9 ;8888 usec) rely ;/;) load /;

,ncapsulation DMC) loop&ac" not set) "eepali(e set F8 secG Mast input 88:88:8Q) output 88:88:8B) output hang ne(er Mast clearing of Nshow interfaceN counters ne(er 5nput !ueue: 8//8 FsiJe/ma*/dropsGH .otal output drops: 8 Tueueing strategy: weighted fair 6utput !ueue: 8/888/=B/8 FsiJe/ma* total/threshold/dropsG

Con(ersations 8//;= Facti(e/ma* acti(e/ma* totalG Reser(ed Con(ersations 8/8 Fallocated/ma* allocatedG

minute input rate 8 &its/sec) 8 pac"ets/sec minute output rate 8 &its/sec) 8 pac"ets/secFoutput omitted)

'+ =B 7&it)


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Sa-ing Configurations

wgroc#wgroc#copy running-config startup-config

Destination filename [startup-config]?'uilding configurationU

wgroc#

wgroc#wgroc#copy running-config startup-config

Destination filename [startup-config]?'uilding configurationU

wgroc#

< Co!ies the current configuration to NVRA)


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1ile S*ste Verification

There are severa% co""ans that can 'e use to verif!the router fi%e s!ste".

show (ersionshow (ersion

show flashshow flash


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(he show flashCoand


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(he show (ersionCoand


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Ste!s in Router Initiali;ation


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Viewing the Configuration


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show running5config and

show startu!5config Coands

wgroc#show startup-config%sing AQ out of A;=; &ytesK

(ersion ;$8K

-- 2ore --

wgroc#show running-config'uilding configuration$$$

Current configuration:K(ersion ;$8K

-- 2ore --

In NVRA)In RA)

< 'is!la*s the current and sa-ed configuration


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Configuration Register Values

(he order in which the router looks for s*ste +ootstra!

inforation de!ends on the +oot field setting in the configuration

register, (he default configuration register setting can +e changed

with the glo+al configuration ode coand config5register, 2se

a he%adecial nu+er as the arguent for this coand,


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Identif*ing .oot Iage Source


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Software Co!onents in )eor*


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1ields in the I/S Nae


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Configuration .acku! and

'ocuentation


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(he copy running-config tftp

Coand


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(he copy tftp running-config

Coand


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(he copy tftp running-configCoand


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)anaging Configuration 1iles 2sing

Co!* and Paste


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)anaging I/S Iages 2sing (1(P


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(he confregCoand


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(he tftpdnldCoand

fasttrack-2a- router dev & confg

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