Solved

CCNA Test: Function of ARP

Posted on 2009-04-13
2
401 Views
Last Modified: 2012-05-06
Hi,

1)This is related to the Sample at one of the CCNA's Prep Test
2)The information is as the followings:(Please see the attachment)
- A is a host Pc called " Pc A"
- B is a host Pc called "Pc B"
- SW#1 is a Switch called "SW#1"
- R#2 is a DSL Modem or Router called "R#2"
3) The Goal: a user at Pc A pings the R#2
4) At Pc A does the followings:
- Go to Command Prompt
- C:\arp -a
- The ouput exhibit:
* Interface: 192.168.1.95 .......0x2
* Internet Address: 192.168.1.254
* Physical address: 00-60-0f-2e-14-C6
* Type: dynamic
5) My questions: please explain it with your own wordings: i) The "192.168.1.95" is the IP address of Pc A?, ii) The "192.168.1.254" is the IP address of R#2?, iii) The "00-60-0f-2e-14-C6" is the MAC address of what interface, R#2?, iv) Could you explain briefly (from the first up to the end) the process when pc A start to ping the R#2?
6) Thank you

Tjie
0
Comment
Question by:tjie
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 

Author Comment

by:tjie
ID: 24134042
Please see the attachment
ARP001.jpg
0
 
LVL 43

Accepted Solution

by:
JFrederick29 earned 500 total points
ID: 24134240
192.168.1.95 is PCA's IP Address and 192.168.1.254 is the router's ethernet interface  IP.

PCA sends an ARP broadcast request for 192.168.1.254 which is flooded out every switch port.  The router receives the ARP request and replies with its MAC address.  PCA then adds the ARP entry (IP to MAC mapping) to its ARP table.  PCA can then communicate with 192.168.1.254 without having to send further ARP requests until the entry ages out.
0

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Creating an OSPF network that automatically (dynamically) reroutes network traffic over other connections to prevent network downtime.
WARNING:   If you follow the instructions here, you will wipe out your VTP and VLAN configurations.  Make sure you have backed up your switch!!! I recently had some issues with a few low-end Cisco routers (RV325) and I opened a case with Cisco TA…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
Suggested Courses

728 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question