Computer Science Homework Solutions
Problem
#66536

DATA COMMUNICATIONS - Determining Source/Destination Addresses

This is a two-part question:

Part 1:

Accessing  a  computer  in  your  own  subnet.  You  are  using  the  Microsoft  Internet  Explorer  web  browser  on  the CLIENT  computer  located  in  building  'A'  to  look  at  a  web  page  on  the  web  server  located  in  building  A
(www1.anyorg.com). Assume that your system already knows the IP address and Ethernet address of the web server www1.anyorg.com (so you do not have to do a DNS lookup or ARP request). Fill in the missing information that would be contained in the Ethernet frame as it leaves your computer: (See attachment). Please explain how you come to this conclusion when filling in the blanks?

Part 2:  

Accessing a computer in a different subnet. Once again you are using the Microsoft Internet Explorer web browser on  the CLIENT computer  located in  building 'A' to look at a web page on  the web server  located in  building B (www2.anyorg.com). Assume that your system already knows the IP address of the web server www2.anyorg.com (so you do not have to do a DNS lookup). Fill in the missing information that would be contained in the Ethernet frame as it leaves your computer.  (see attachment).  Again, please explain how you determined the answers.

Attached file(s):
Attachments
datacomm question.doc  View File

Attachment Content Summary (Note: view attachment at the above link before purchasing. Actual attachment content may vary slightly from that shown below.)

datacomm question.doc
Accessing a computer in your own subnet. You are using the
Microsoft Internet Explorer web browser on the

CLIENT computer located in building ‘A’ to look at a web
page on the web server located in building A

(www1.anyorg.com). Assume that your system already knows the IP address
and Ethernet address of the web server www1.anyorg.com (so you do not
have to do a DNS lookup or ARP request). Fill in the missing information
that would be contained in the Ethernet frame as it leaves your
computer:

Address Type Source Address Destination Address

Port Address Ephemerial - Port 1076

IP Address

Ethernet (MAC) Address

Accessing a computer in a different subnet. Once again you are using the
Microsoft Internet Explorer web browser on the CLIENT computer located
in building ‘A’ to look at a web page on the web server located
in building B

(www2.anyorg.com). Assume that your system already knows the IP address
of the web server www2.anyorg.com

(so you do not have to do a DNS lookup). Fill in the missing information
that would be contained in the Ethernet frame as it leaves your
computer.

Address Type Source Address Destination Address

Port Address Ephemerial - Port 1098

IP Address

Ethernet (MAC) Address
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