DT008/3 COMMUNICATIONS SYSTEMS 1 Laboratory 7 Results Sheet

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24 Οκτ 2013 (πριν από 4 χρόνια και 17 μέρες)

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DT008/3

COMMUNICATIONS SYSTEMS 1


Laboratory 7


Results Sheet


Preliminary

Router Configuration


Router


IF 1: IP Address

172.16.110.254/17

Rou
ter


IF 1: MAC Address


Router


IF 2: IP Address


Router


IF 2: MAC Address



PCs Configuration


Net 1
-

NODE A
: IP Address:


Net 1
-

NODE A
: Subnet Mask


Net 1
-

NODE A
: Default Gateway


Net 1
-

NODE A
: MAC Address:


Net 1
-

NODE B
: IP Address:


Net 1
-

NODE B
: Subnet Mask


Net 1
-

NODE B
: Default Gateway


Net 1
-

NODE B
: MAC Address:




Net 2
-

NODE C
: IP Address:


Net 2
-

NODE C
: Subnet Mask


Net 2
-

NODE C
: Default Gateway


Net 2
-

NODE C
: MAC Address:



Student Name

Date


Exercise 1: ARP Traffic betwe
en subnets


Procedure 1

1.

arp

cache





2.

Steps taken when a client pings a host on the same sub
-
net, that is not included in the arp
table.







3.
ARP fields:

MAC Address of Sender PC


IP Address of Sender PC


MAC Address of Target PC


IP Address of Tar
get PC



Procedure 2

1.

arp

cache




2.

Steps taken when a client pings a host on a different subnet










3.

Destination MAC address for the arp request message? Why?








Exercise 2: Trace Route

Questions

1.

List commands and replies.





2.

Explain the error r
eported by the ICMP message, and list the type/code of the error.






3.

I
nformation in the payload of
the ICMP error packet

?