PacKet TraCer Guide : part 1 : back to basic

First of all....if you already took data communication and networking...you should already seen this software in lab...(unless you escape the lab.. T_T)


The course teaches us about how to connect to computer to computer...setting ip....ping the address and how to track data transmit using wireshark...We also learned the basic of network layer...and what kind data is being transmit for each layer.
but even so , those lab activities only cover the basic of the basics.....which doesn't even worth actually (better go for DoTa than attend the lab..hak3)...so here we are going to talk about the basic till the part that we are qualified to take CCNA exam ,which we are going to cover CLI commands...how possible connection between router , switch ,hub and etc.We also going to touch on type of connection....remoting (cover most on VPN & alternative), consequences for the connection and the security itself...and other concepts that i'm going to tell later on.

SETTING
first of all...when we talk about router and switch .We can easily change any value for each specific hardware using graphical user interface.But to understand better and prepare for CCNA exam, we are going for command line ...which usually used when we are connecting via remote.

CLI

there are three types of user privileges exist , which the first is user privilege where when we enter this state , we only able to see (show) whatever running in the router...or its configuration ....second is admin state ..where mostly we able to start,stop,restart the any running program . The last one is Configuration mode..which mostly we will use this state to change any value related router/switch setting.It is not like normal privilege for other system where higher state of privilege can control lower.In packet tracker each state/privilege has its each commands and mostly those commands only available in that state.

In short term we have

1. User Mode
2. Priviledge Mode
   
3. Config Mode - *Interface Mode *line mode

And most importantly you can jump straight from one gap privilege ....example can't jump from user mode to configure mode...you need to go there step by step 1- 2 -3-4 (not 1 2 3 4 plain white song k..hak3)....

you can always type

?

when you want to see the commands..

so to jump between state ::

admin mode

enable

and because only enable word start with en ...you can just type en then enter ..PT will understand that you want to go for admin mode

Configuration mode

configure terminal

you also can type

conf t

interface mode (for setting ip and make sure router running)
Supposely there are several interface but we will use fastethernet for begining

interface fastethernet 0/1

( int f 0/1 )

ip address ip gateway

(ip add ip gatway )

example :: ip add 112.116.217.185 255.255.255.0


to make sure running

no shutdown

( no sh )

to exit..type

exit

two times

type

sh run

you should be able to see router is running...ok...we will continue next for switch and other advance CLI command...