NAD710 Lab 1 Answers

Assignment 1

Based on the information collected, answer the following questions:

1. <a name="#one">What is the kernel version of Linux on matrix?</a>
2. <a name="#two">What is the IP address and MAC address of the Linux machine on matrix?</a>
3. <a name="#three">What is the network mask on matrix?</a>
4. <a name="#four">What are the network addresses of the Linux machine? (there should be three networks)</a>
5. <a name="#five">What is the IP address of the gateway for the Linux machine on matrix?</a>
6. <a name="#six">What is the command to display all the currently loaded kernel modules?</a>
7. <a name="#seven">Where is the file for the kernel module called "e100"?</a>
8. <a name="#eight">What is the MAC address for the network device that has the IP address 192.168.1.254?</a>
9. <a name="#nine">How do you display all the physically network addresses known by a Linux machine?</a>
10. <a name="#ten">What is the MAC address of the network device on the default gateway for the Linux machine on matrix?</a>

1. <a name="one">What is the kernel version on matrix.</a>

lsdaly@matrix:~> uname -r

2.6.18.8-0.5-default

2. <a name="two">What is the IP address and MAC address of the Linux machine on matrix?</a>

from: /sbin/ifconfig

mac address is 00:0E:0C:74:9C:F9

and ip is 192.168.1.69

3. <a name="three">What is the network mask on matrix.</a>

Mask:255.255.255.0

4. <a name="four">What are the network addresses of the Linux machine? (there should be three networks)</a>

Kernel IP routing table

Destination Iface

192.168.1.0 eth0

169.254.0.0 eth0

127.0.0.0 lo

5. <a name="five">What is the IP address of the gateway for the Linux machine on matrix?</a>

Destination Gateway

0.0.0.0 192.168.1.254

6. <a name="six">What is the command to display all the currently loaded kernel modules?</a>

lsdaly@matrix:~> /sbin/lsmod

Module Size Used by

nfs 236268 4

lockd 73192 2 nfs

7. <a name="seven">Where is the file for the kernel module called "e1000"? (changed from e100)</a>

daly@matrix:~> /sbin/modinfo e1000

filename: /lib/modules/2.6.18.8-0.5-default/kernel/drivers/net/e1000/e1000.ko

8. <a name="eight">What is the MAC address for the network device that has the IP address 192.168.1.254?</a>

lsdaly@matrix:~> /sbin/arp -n

Address HWtype HWaddress Iface

192.168.1.254 ether 00:0E:0C:7F:84:6F eth0

9. <a name="nine">How do you display all the physically network addresses known by a Linux machine?</a>

lsdaly@matrix:~> /sbin/arp -n

10. <a name="ten">What is the MAC address of the network device on the default gateway for the Linux machine on matrix?</a>

From question 5: Gateway IP is 192.168.1.254

lsdaly@matrix:~> /sbin/arp -a 192.168.1.254

gateway.matrix (192.168.1.254) at 00:0E:0C:7F:84:6F [ether] on eth0