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--- eg-253:networkq:572278 [2011/12/08 12:57] – [Extension Questions] abbas
+++ eg-253:networkq:572278 [2011/12/09 22:13] (current) – [Question 27] abbas
@@ Line 67: / Line 67: @@
 | The netmask of my host | 255.255.255.0 |
 | The hardware address (MAC Address) of my LAN-facing network interface connection (NIC)((If your host has two or more network cards, the LAN-facing card will be the NIC assigned to your host's static IP address.)) | 00:19:d1:91:4f:c7 |
-| The frame-level (layer 1) protocol is used to send network messages to the network from my host? | Answer |
+| The frame-level (layer 1) protocol is used to send network messages to the network from my host? | Ethernet  |
@@ Line 220: / Line 220: @@
+The purpose of the Gateway interface is to provide a communication bridge between the internet and the networks. Moreover, its used to route messages between them.
@@ Line 267: / Line 267: @@
 In which file is the setting defined in [[#question17|Question 17]] set if you want a Ubuntu host to be configured as a router at boot-time?
-**Answer**:
+/etc/network/options
@@ Line 274: / Line 274: @@
 **Answer**
-  Copy contents of file and paste it as a listing here.
+ip_forward=yes
-  Include a minumum indent of two spaces per line.
-  Like this.
@@ Line 285: / Line 285: @@
 **Answer**:
-  Copy contents of file and paste it as a listing here.
+  up route add -net 192.168.2.0 netmask 255.255.255.0 gw 192.168.1.3
-  Include a minumum indent of two spaces per line.
+  down route del -net 192.168.2.0 netmask 255.255.255.0 gw 192.168.1.3
-  Like this.
@@ Line 320: / Line 320: @@
 <cli prompt="$" comment="#">
 user@host:~$ netstat -i
-# Kernel Interface table
+Kernel Interface table
 Iface   MTU Met   RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR Flg
-eth0       1500 0    121424      0      0 0         56519      0      0      0 BMRU
+eth0       1500 0      7275      0      0 0          5798      0      0      0 B
-lo        16436 0      1350      0      0 0          1350      0      0      0 LRU
+MRU
+lo        16436 0        24      0      0 0            24      0      0      0 L
+RU
 </cli>
@@ Line 408: / Line 410: @@
 ===== Extension Questions =====
-iface eth0 inet static
+==== Question 25 ====
+A new sub-network engineering-net (''192.168.10.0/24'') is to be added to the ICCT network. Host engineering (''192.168.10.1/32'') is a cluster server for this new network. Give the settings needed to set up this host as a router to ''icct-net'', ''jupiter-net'', and ''saturn-net'' and a gateway for ''engineering-net''.
+**Answer**
+  iface eth0 inet static
   address 192.168.10.1
   network 192.168.10.0
@@ Line 420: / Line 427: @@
   up route add -net 192.168.10.0 netmask 255.255.255.0 gw 192.168.10.3
   down route del -net 192.168.10.0 netmask 255.255.255.0 gw 192.168.10.3
+==== Question 26 ====
-==== Question 25 ====
+Which other files would you need to modify to correctly set up this new router?
-A new sub-network engineering-net (''192.168.10.0/24'') is to be added to the ICCT network. Host engineering (''192.168.10.1/32'') is a cluster server for this new network. Give the settings needed to set up this host as a router to ''icct-net'', ''jupiter-net'', and ''saturn-net'' and a gateway for ''engineering-net''.
+**Answer**
-**Answer**
+/etc/hostname
-==== Question 26 ====
+/etc/hosts
-Which other files would you need to modify to correctly set up this new router?
+/etc/networks/interfaces
+/etc/resolv.conf
+==== Question 27 ====
+Summarize the changes that you would you need to make to your host's network configuration to have the new //engineering// sub-network recognized?
 **Answer**
-  iface eth0 inet static
+iface eth0 inet static
-  address 192.168.10.1
+  address 192.168.1.4
-  network 192.168.10.0
+  network 192.168.1.0
   netmask 255.255.255.0
-  gateway 192.168.10.1
+  gateway 192.168.1.1
   # route to jupiter-net
   up route add -net 192.168.2.0 netmask 255.255.255.0 gw 192.168.1.3
-  down route del -net 192.168.2.0 netmask 255.255.255.0 gw 192.168.1.3
+  down ro/etc/network/interfacesute del -net 192.168.2.0 netmask 255.255.255.0 gw 192.168.1.3
-  # route to engineering
-  up route add -net 192.168.10.0 netmask 255.255.255.0 gw 192.168.10.3
-  down route del -net 192.168.10.0 netmask 255.255.255.0 gw 192.168.10.3
-==== Question 27 ====
-Summarize the changes that you would you need to make to your host's network configuration to have the new //engineering// sub-network recognized?
-**Answer**
@@ Line 458: / Line 464: @@
 **Answer**
+/etc/resolve.conf
-===== Signature =====
+/etc/hosts
+/etc/nsswitch.conf
+/etc/network/interfaces
-I hereby submit this work for marking.
-Your signature here:
+I hereby submit this work for marking.
+Your signature here:  --- //[[572278@swansea.ac.uk|Abbas]] 2011/12/09 16:13//