CSEE 4119 Computer Networks
Programming Assignment 1
Jahyun Kim (jk3111)

TEST CASE 1

Server
536 ginny0620:src$ java -Djava.net.preferIPv4Stack=true UdpChat -s 2000
[Server is ready...]
[Server ip: 192.168.0.17]

Client x
519 ginny0620:src$ java -Djava.net.preferIPv4Stack=true UdpChat -c x 192.168.0.17 2000 3000
Enter reg <nickname> to register.
reg x
[Welcome! You are registered.]

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.


[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - online


[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - online

y - /192.168.0.17 - 5000 - online


[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - online

y - /192.168.0.17 - 5000 - online

z - /192.168.0.17 - 4000 - online

send y hello
[Message received by y.]

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.

Sender:  y Time: 2015-07-15 08:59:25.198 Message: hi

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.
send z hello
Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.
[Message received by z.]

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.

Sender:  z Time: 2015-07-15 09:00:02.558 Message: hi

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.
dereg x

[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - offline

y - /192.168.0.17 - 5000 - online

z - /192.168.0.17 - 4000 - online

[You are offline. Bye.]
^C520 ginny0620:src$ 
520 ginny0620:src$ clear

521 ginny0620:src$ java -Djava.net.preferIPv4Stack=true UdpChat -c x 192.168.0.17 2000 3000
Enter reg <nickname> to register.
reg x
[Welcome! You are registered.]

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.


[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - online


[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - online

y - /192.168.0.17 - 5000 - online


[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - online

y - /192.168.0.17 - 5000 - online

z - /192.168.0.17 - 4000 - online

send y hi
[Message received by y.]

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.

Sender:  y Time: 2015-07-15 09:03:27.188 Message: hello

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.
send z hi
[Message received by z.]

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.

Sender:  z Time: 2015-07-15 09:03:37.657 Message: hello

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.
dereg x

[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - offline

y - /192.168.0.17 - 5000 - online

z - /192.168.0.17 - 4000 - online

[You are offline. Bye.]

^C522 ginny0620:src$ java -Djava.net.preferIPv4Stack=true UdpChat -c x 192.168.07 2000 3000
Enter reg <nickname> to register.
reg x
[Welcome! You are registered.]

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.


[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - online

y - /192.168.0.17 - 5000 - online

z - /192.168.0.17 - 4000 - online

[Off-line Messages: ]
Sender: y Time: 2015-07-15 09:04:46.261 Message: miss you

Sender: z Time: 2015-07-15 09:05:28.271 Message: miss you miss you


[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - online

y - /192.168.0.17 - 5000 - offline

z - /192.168.0.17 - 4000 - online

dereg x

[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - offline

y - /192.168.0.17 - 5000 - offline

z - /192.168.0.17 - 4000 - online

[You are offline. Bye.]

Client y

521 ginny0620:src$ java -Djava.net.preferIPv4Stack=true UdpChat -c y 192.168.0.17 2000 5000
Enter reg <nickname> to register.
reg y
[Welcome! You are registered.]

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.


[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - online

y - /192.168.0.17 - 5000 - online


[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - online

y - /192.168.0.17 - 5000 - online

z - /192.168.0.17 - 4000 - online

Sender:  x Time: 2015-07-15 09:03:21.221 Message: hi

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.
send x hello
[Message received by x.]

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.

Sender:  z Time: 2015-07-15 09:03:59.658 Message: bonjour

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.
send z bonjour
[Message received by z.]

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.


[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - offline

y - /192.168.0.17 - 5000 - online

z - /192.168.0.17 - 4000 - online

send x miss you
[No ACK from x, message sent to server.]

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.


[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - online

y - /192.168.0.17 - 5000 - online

z - /192.168.0.17 - 4000 - online

dereg y

[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - online

y - /192.168.0.17 - 5000 - offline

z - /192.168.0.17 - 4000 - online

[You are offline. Bye.]

Client z
509 ginny0620:src$ java -Djava.net.preferIPv4Stack=true UdpChat -c z 192.168.0.17 2000 4000
Enter reg <nickname> to register.
reg z
[Welcome! You are registered.]

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.


[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - online

y - /192.168.0.17 - 5000 - online

z - /192.168.0.17 - 4000 - online

Sender:  x Time: 2015-07-15 09:03:32.98 Message: hi

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.
send x hello
[Message received by x.]

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.

send y bonjour
[Message received by y.]

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.

Sender:  y Time: 2015-07-15 09:04:11.458 Message: bonjour

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.

[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - offline

y - /192.168.0.17 - 5000 - online

z - /192.168.0.17 - 4000 - online

send x miss you miss you
[No ACK from x, message sent to server.]

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.


[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - online

y - /192.168.0.17 - 5000 - online

z - /192.168.0.17 - 4000 - online


[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - online

y - /192.168.0.17 - 5000 - offline

z - /192.168.0.17 - 4000 - online


[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - offline

y - /192.168.0.17 - 5000 - offline

z - /192.168.0.17 - 4000 - online

dereg z

[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - offline

y - /192.168.0.17 - 5000 - offline

z - /192.168.0.17 - 4000 - offline

[You are offline. Bye.]


TEST CASE 2

Server
538 ginny0620:src$ java -Djava.net.preferIPv4Stack=true UdpChat -s 2000
[Server is ready...]
[Server ip: 192.168.0.17]

Client x
545 ginny0620:src$ java -Djava.net.preferIPv4Stack=true UdpChat -c x 192.168.0.17 2000 3000
Enter reg <nickname> to register.
reg x
[Welcome! You are registered.]

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.

[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - online

[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - online

y - /192.168.0.17 - 5000 - online

[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - online

y - /192.168.0.17 - 5000 - offline

send y hi
[Server not responding...]
[Exiting...]

Client y
539 ginny0620:src$ java -Djava.net.preferIPv4Stack=true UdpChat -c y 192.168.0.17 2000 5000
Enter reg <nickname> to register.
reg y
[Welcome! You are registered.]

Enter the desired command.
send <name> <message> to send the message to client <name>.
dereg <nick-name> to de-register.

[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - online

y - /192.168.0.17 - 5000 - online

dereg y
[Client table updated.]
[Table of Clients.]
<nickname> - <ip> - <port number> - <online status>
x - /192.168.0.17 - 3000 - online

y - /192.168.0.17 - 5000 - offline

[You are offline. Bye.]