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--- eg-253:networkq:foxtrot [2009/01/29 11:34] – maram
+++ eg-253:networkq:foxtrot [2011/01/14 13:00] (current) – external edit 127.0.0.1
@@ Line 4: / Line 4: @@
 ^EG-253^Practical Internet Technology II ^
-|**Name** |Maram |
+|**Name** |Maram and Stephen|
 |**Student Number** |387857 |
 |**Date of Submission** |14th Octember 3330 |
@@ Line 157: / Line 157: @@
 **Answer**:saturn
 ==== Question 11 ====
@@ Line 174: / Line 172: @@
 Please include a listing of the file chosen in answer to [[#question_11|Question 11]]:
- iface lo inet loopback
+  iface lo inet loopback
-auto lo
+    auto lo
-auto eth0
+  auto eth0
-iface eth0 inet static
+  iface eth0 inet static
-  address 192.168.3.3
+     address 192.168.3.3
-  network 192.168.3.0
+     network 192.168.3.0
-  netmask 255.255.255.0
+     netmask 255.255.255.0
-  gateway 192.168.3.1
+     gateway 192.168.3.1
-# /etc/hosts -- Hosts file for ICCT Private network
+  # /etc/hosts -- Hosts file for ICCT Private network
-#
+  #
-# IP          FQDN                        aliases
+  # IP          FQDN                        aliases
-#
+  #
-#
+  #
 .168.1.1 solaris.icct.com solaris inet-gateway
 .168.1.2 venus.icct.com venus www
-#
+  #
-# Jupiter cluster
+  # Jupiter cluster
-#
+  #
 .168.1.3 gw-jupiter.icct.com gw-planets jupiter-if1
 .168.2.1 jupiter.icct.com jupiter jupiter-if2
 .168.2.2 callisto.jupiter.icct.com callisto
 .168.2.3 europa.jupiter.icct.com europa
 .168.2.4 ganymede.jupiter.icct.com ganumede
-#
+  #
-# Saturn cluster
+  # Saturn cluster
-#
+  #
 .168.1.4 gw-saturn.icct.com gw-saturn saturn-if1
 .168.3.1 saturn.icct.com saturn saturn-if2
 .168.3.2 dione.saturn.icct.com dione
 .168.3.3 tethys.saturn.icct.com tethys
 .168.3.4 titan.saturn.icct.com titan
-#
+  #
-# Add other hosts/clusters below here
+  # Add other hosts/clusters below here
-# (we'll use this to add virtual hosts to the web-server in a later
+  # (we'll use this to add virtual hosts to the web-server in a later
-# lab exercise)
+  # lab exercise)
-# The following lines are desirable for IPv6 capable hosts
+  # The following lines are desirable for IPv6 capable hosts
-::1 ip6-localhost ip6-loopback
+  ::1 ip6-localhost ip6-loopback
-fe00::0 ip6-localnet
+  fe00::0 ip6-localnet
-ff00::0 ip6-mcastprefix
+  ff00::0 ip6-mcastprefix
-ff02::1 ip6-allnodes
+  ff02::1 ip6-allnodes
-ff02::2 ip6-allrouters
+  ff02::2 ip6-allrouters
-ff0e2::3 ip6-allhosts
+  ff0e2::3 ip6-allhosts
@@ Line 256: / Line 254: @@
 **Answer**
-Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
+<cli prompt="$" comment="#">
-saturn-net      *               255.255.255.0   U     0      0        0 eth0
+user@host:~$ route
-link-local      *               255.255.0.0     U     1000   0        0 eth0
-default         saturn.icct.com 0.0.0.0         UG    100    0        0 eth0
+  Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
+  saturn-net      *               255.255.255.0   U     0      0        0 eth0
+  link-local      *               255.255.0.0     U     1000   0        0 eth0
+  default         saturn.icct.com 0.0.0.0         UG    100    0        0 eth0
-<cli prompt="$" comment="#">
-user@host:~$ command # Copy command and its output and paste it here.
 </cli>
@@ Line 282: / Line 280: @@
 **Answer**:
-To turn IP forwarding on, you have to enable IP forwarding in the Linux kernel
+ip forward
 ==== Question 17 ====
@@ Line 289: / Line 287: @@
 **Answer**:
-icct@tethys:~$ sudo sh -c "echo 1 > /proc/sys/net/ipv4/ip_forward"
+set ip_forward=yes
 ==== Question 18 ====
@@ Line 302: / Line 300: @@
 **Answer**
-icct@saturn:/etc/network/if-up.d$ cat router
+ip_forward=yes
-#!/bin/sh
+spoofprotect=yes
+syncookies=no
-#enable ip forwarding
-echo 1 > /proc/sys/net/ipv4/ip_forward
 ==== Question 19 ====
@@ Line 315: / Line 310: @@
 **Answer**:
-  Copy contents of file and paste it as a listing here.
+	address 192.168.3.3
-  Include a minumum indent of two spaces per line.
+	network 192.168.3.0
-  Like this.
+	netmask 255.255.255.0
+	gateway 192.168.3.1
+	# route to saturn-net
+	up	route add -net 192.168.3.0 netmask 255.255.255.0 gw 192.168.1.3
+	down	route del -net 192.168.3.0 netmask 255.255.255.0 gw 192.168.1.3
 ===== Checking Your Network =====
@@ Line 331: / Line 329: @@
 <cli prompt="$" comment="#">
 user@host:~$ netstat -r
-# Paste result here....
+  user@host:~$ netstat -r
-</cli>
+  Kernel IP routing table
+  Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
+  saturn-net     *               255.255.255.0   U         0 0          0 eth0
+  link-local      *               255.255.0.0     U         0 0          0 eth0
+  default         saturn.icct.co 0.0.0.0         UG </cli>
 Add your explanation here.
@@ Line 374: / Line 376: @@
 <cli prompt="$" comment="#">
 user@host:~$ command
-# paste output here
+user@host:~$  traceroute 192.168.3.2
+traceroute 192.168.3.2
+traceroute to 192.168.3.2 (192.168.3.2), 30 hops max, 40 byte packets
+  ganymede.jupiter.icct.com (192.168.3.2)   2.660 ms  2.566 ms  2.521 ms
 </cli>
@@ Line 387: / Line 393: @@
 <cli prompt="$" comment="#">
 user@host:~$ command
-# paste output here
+  traceroute to www.swan.ac.uk (137.44.1.7), 30 hops max, 40 byte packets
+  saturn.icct.com (192.168.3.1)  0.166 ms  0.167 ms  0.171 ms
 </cli>