NAD710 Lab 1 Answers

Please correct me

Based on the best available info

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

1. What is the kernel version on matrix?

lsdaly@matrix:~> uname -r
kernel release is 2.6.18.8-0.5-default
Kernel version of linux on matrix is #1 SMP Tue Feb 12 09:16:51 EST 2008

2. What is the IP address and MAC address of the Linux machine on matrix?

from /sbin/ifconfig:

HWaddr: 00:0E:0C:74:9C:F9
IP: 192.168.1.69

3. What is the network mask on matrix?

Mask:255.255.255.0

4. What are the network addresses of the Linux machine? (there should be three networks)

Kernel IP routing table
Destination     Iface
192.168.1.0     eth0
169.254.0.0     eth0
127.0.0.0       lo

5. What is the IP address of the gateway for the Linux machine on matrix?

Destination     Gateway
0.0.0.0         192.168.1.254

6. What is the command to display all the currently loaded kernel modules?

lsdaly@matrix:~> /sbin/lsmod
Module                  Size  Used by
nfs                   236268  4
lockd                  73192  2 nfs

7. Where is the file for the kernel module called "e1000"? (changed from e100)

daly@matrix:~> /sbin/modinfo e1000
filename:       /lib/modules/2.6.18.8-0.5-default/kernel/drivers/net/e1000/e1000.ko

8. What is the MAC address for the network device that has the IP address 192.168.1.254?

lsdaly@matrix:~> /sbin/arp -n
Address                  HWtype  HWaddress                       Iface
192.168.1.254            ether   00:0E:0C:7F:84:6F               eth0

9. How do you display all the physically network addresses known by a Linux machine?

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

pconstantino->(if you want to see the host names instead of IP addresses use arp with no arguments)

10. What is the MAC address of the network device on the default gateway for the Linux machine on matrix?

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