Question: Using the xela.cap file a. Compose a regular expressions (regex) command in a Cygwin terminal which will provide a histogram of the source addresses for

Using the xela.cap file

a. Compose a regular expressions (regex) command in a Cygwin terminal which will provide a histogram of the source addresses for TCP packets. (hint - what if I asked for http traffic?) It should look like:

192.168.0.11 443

52.114.158.52 443

...

b. From which address has 66 packets been received?

Sample of the xela.cap file but there are many more packets not shown.

"717","78.652882","192.168.0.2","239.255.255.250","SSDP","381","NOTIFY * HTTP/1.1 "
"718","78.657394","192.168.0.2","239.255.255.250","SSDP","424","NOTIFY * HTTP/1.1 "
"719","78.660869","192.168.0.2","239.255.255.250","SSDP","426","NOTIFY * HTTP/1.1 "
"720","78.665083","192.168.0.2","239.255.255.250","SSDP","438","NOTIFY * HTTP/1.1 "
"721","78.669126","192.168.0.2","239.255.255.250","SSDP","436","NOTIFY * HTTP/1.1 "
"722","78.673177","192.168.0.2","239.255.255.250","SSDP","452","NOTIFY * HTTP/1.1 "
"723","78.847252","204.79.197.200","192.168.0.11","TCP","60","443 > 50777 [RST, ACK] Seq=1 Ack=1 Win=0 Len=0"
"724","79.667287","192.168.0.3","192.168.0.11","UDP","360","60000 > 50801 Len=318"
"725","360","60000 > 50801 Len=318"
"726","80.283650","192.168.0.1","239.255.255.250","SSDP","328","NOTIFY * HTTP/1.1 "
"727","80.297132","192.168.0.1","239.255.255.250","SSDP","391","NOTIFY * HTTP/1.1 "
"728","80.297134","192.168.0.1","239.255.255.250","SSDP","319","NOTIFY * HTTP/1.1 "
"729","80.297135","192.168.0.1","239.255.255.250","SSDP","328","NOTIFY * HTTP/1.1 "
"730","80.297136","192.168.0.1","239.255.255.250","SSDP","367","NOTIFY * HTTP/1.1 "
"731","80.311325","192.168.0.1","239.255.255.250","SSDP","387","NOTIFY * HTTP/1.1 "
"732","80.311331","192.168.0.1","239.255.255.250","SSDP","383","NOTIFY * HTTP/1.1 "
"733","80.311332","192.168.0.1","239.255.255.250","SSDP","399","NOTIFY * HTTP/1.1 "
"734","80.314734","192.168.0.1","239.255.255.250","SSDP","381","NOTIFY * HTTP/1.1 "
"735","81.507628","192.168.0.11","52.114.158.52","TCP","54","50850 > 443 [FIN, ACK] Seq=1 Ack=1 Win=1024 Len=0"

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Computer Network Questions!

Use the attached "words.txt" file to store the words along with their ranks in an AVL tree. Then provide the user the option to search for any word. If the word exists the program displays the rank...

Choose three PRIORITY PROBLEMS, and identify what assessment cues would prompt someone to choose that problem. Select Priority Problems that have not already been discussed by your peers. According...

QUIZ... Let D be a poset and let f : D D be a monotone function. (i) Give the definition of the least pre-fixed point, fix (f), of f. Show that fix (f) is a fixed point of f. [5 marks] (ii) Show that...

4 Comparative Programming Languages illustrating your answer by explaining the meaning of the following fragment of code: [self isAwake] whileTrue: [| item | item := self askForCookie. (self...

A discrete sequence {xn} can be converted into a continuous representation x(t) = ts X n= (t n ts) xn, where ts is the sampling period. (a) State two characteristic properties of Dirac's function. [2...

INTRODUCING THE WIRESHARK NETWORK ANALYZER 1.1. Work description When diagnosing network problems and studying the behavior of network applications, traffic analysis data is an invaluable source of...

(a) In SystemVerilog, what is the difference between: (i) The ternary operator ? and if...then...else statements? [2 marks] (ii) always_ff and always_comb? [2 marks] (iii) Blocking, non-blocking and...

Please give the linux commands used for the whole activity in and order. (only the correct commands will do). Abstract Use the IPTables firewall to create, block, and redirect network traffic....

E9-13 Computing Four Present Value Problems LO9-7 On January 1 of this year, Shannon Company completed the following transactions (assume a 8% annual interest rate): (F appropriate factor(s) from the...

Harold earns a salary of $200,000 from EMK enterprises as an officer during this year for the first 11 months of the year. Harold withholds OASDI (Social Security) taxes in the amount of $9,932.40....

Suppose that we wish to test H0: = 80 versus Ha: > 80, where the population standard deviation is known to equal 20. Also, suppose that a sample of 100 measurements randomly selected from the...

Discuss the key applications that utilize the microwave frequency band.

P11.19 The block diagram of a system is shown in Figure P11.19. Determine whether the system is controllable and observable.

Complete the following: (1) Br, (2) NaNH, (3 equiv.), A, H,O* (3) Br Cul, Pd(Ph,P) Et NH

1. Use valence bond theory to write a hybridization and bonding scheme for the carbon dioxide molecule.

1) Based on the article which element of Zaras strategy do you believe best explains its success? 2) Based on the article assess the difficulty a competitor, such as Gap, faces trying to re-create...

Occurs where? Caused by what? List its signs/symptoms? How is it treated/cured? 4F SNMYS,1 "Lit is signs/rymptoms Small deep lineu crack In the skin Occurs where? How is it prevented? How is ...

Consider the following function: F(A,B,C,D) = 2(0,1,5,7, 10, 11, 15) with d(A,B,C,D) = (2, 3, 13) Answer the following: A) Find the minimized SOP and minimized POS without using the don't cares in...

Can we put that she will be making weekly payroll deductions inthe amount of $52.75 to the housing equalling $211.00 monthly

Karim Depak received a Form 1099-B showing the following stock transactions and basis during 2012: None of the stock is qualified small business stock. Calculate Karim's net capital gain or loss...

Brian and Kim have a 12-year-old child, Stan. For 2012, Brian and Kim have taxable income of $52,000, and Stan has nonqualifying dividend income of $4,500 and investment expenses of $250. No election...

Professor Patricia (Patty) Pate is retired from the PalmSprings Culinary Arts Academy (PSCAA). She is a single taxpayer and is 68 years old. Patty lives at 98 Colander Street, Henderson, NV 89052....

Geertz has compared culture to a spider web. What other metaphors can you think of that could represent organizational cultures?

Does your college or university solicit feedback from students regarding its promotion of the organization? Discuss the methods that your school uses.

How would you explain your family using any of the principles of Structuration Theory?