Solved

CCNA Test: Function of ARP

Posted on 2009-04-13
2
389 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
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

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

There are two basic ways to configure a static route for Cisco IOS devices. I've written this article to highlight a case study comparing the configuration of a static route using the next-hop IP and the configuration of a static route using an outg…
In the world of WAN, QoS is a pretty important topic for most, if not all, networks. Some WAN technologies have QoS mechanisms built in, but others, such as some L2 WAN's, don't have QoS control in the provider cloud.
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…

911 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

Need Help in Real-Time?

Connect with top rated Experts

16 Experts available now in Live!

Get 1:1 Help Now