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--- eg-253:networkq:637234 [2012/11/28 11:42] – [Question 18] 637234
+++ eg-253:networkq:637234 [2012/12/06 10:46] (current) – [Question 24] eechris
@@ Line 40: / Line 40: @@
-Mimas
+  Mimas
+**small ''m''!**
+ --- //[[chris@cpjobling.me|Chris Jobling]] 2012/12/06 04:28//
 ==== Question 3 ====
@@ Line 78: / Line 82: @@
+**You have given the broadcast address for your host's network address and the IPv6 address for the IPv4 broadcast address!**
+ --- //[[chris@cpjobling.me|Chris Jobling]] 2012/12/06 04:29//
 ==== Question 6 ====
@@ Line 89: / Line 94: @@
+**No! The netmask is 255.255.255.0 so 8 bits are available for hosts. 2^8 = 256 possible hosts but you can't use the //net address// (which would be 192.168.3.0) or the broadcast address (which is 192.168.3.255) so that leaves 254.**
+ --- //[[chris@cpjobling.me|Chris Jobling]] 2012/12/06 04:31//
 ==== Question 7 ====
@@ Line 222: / Line 228: @@
 **Answer**:Its is where we can configure how the system is connected to the netowrk
+**Not really. It defines where packets with IP addresses who's network address does not match the host's network address will be sent for forwarding to the destination network.**
+ --- //[[chris@cpjobling.me|Chris Jobling]] 2012/12/06 04:35//
@@ Line 260: / Line 270: @@
 **Answer**: ip_forwarding=yes
+**Answer is //IP forwarding//. Your answer would be part of the later question.**
+ --- //[[chris@cpjobling.me|Chris Jobling]] 2012/12/06 04:36//
 ==== Question 17 ====
@@ Line 274: / Line 287: @@
 **Answer**:
    nano /etc/network/options
+**I expected you to be logged into the host so ''saturn:/etc/networking/options'' was the answer I was looking for. Ot at least some indication that you were logged into saturn**
+ --- //[[chris@cpjobling.me|Chris Jobling]] 2012/12/06 04:39//
 Reproduce the contents of the file defined in [[#question_17|Question 17]] to make a Ubuntu host into a router?
@@ Line 299: / Line 316: @@
 **Answer**:
-  Copy contents of file and paste it as a listing here.
+    up    route add -net 192.168.3.0 netmask 255.255.255.0 gw 192.168.1.4
-  Include a minumum indent of two spaces per line.
-  Like this.
+** what about ''down route''?**
+ --- //[[chris@cpjobling.me|Chris Jobling]] 2012/12/06 04:37//
+  cat /etc/network/interfaces
+   # This file describes the network interfaces available on your system
+   # and how to activate them. For more information, see interfaces(5).
+   # This is Jupiter
+   # The loopback network interface
+   auto lo
+   iface lo inet loopback
+    # The primary network interface
+    auto eth0
+    iface eth0 inet static
+    address 192.168.1.3
+    network 192.168.1.0
+    netmask 255.255.255.0
+    gateway 192.168.1.1
+    # route to saturn-net
+    up    route add -net 192.168.3.0 netmask 255.255.255.0 gw 192.168.1.4
+    down  route del -net 192.168.3.0 netmask 255.255.255.0 gw 192.168.1.4
+ **Your gateway router is //saturn//!**
+ --- //[[chris@cpjobling.me|Chris Jobling]] 2012/12/06 04:37//
 ===== Checking Your Network =====
@@ Line 344: / Line 388: @@
 #displays the statistics for network interfaces currently configured
+**which statistics specifically?**
+ --- //[[chris@cpjobling.me|Chris Jobling]] 2012/12/06 04:42//
 ==== Question 22 ====
@@ Line 382: / Line 430: @@
+**The question asks you to provide a route to another network. You should have used something on //jupiter.icct.com// or //icct.com//. There would then have been at least 2 hops.**
+ --- //[[chris@cpjobling.me|Chris Jobling]] 2012/12/06 04:44//
 ==== Question 24 ====
@@ Line 427: / Line 476: @@
 traceroute uses UDP datagrams to determin the path that packets take over a network. There are 30 lines in a default traceroute response.
+**Yes, but why is there no response from networks 2-30?**
+ --- //[[chris@cpjobling.me|Chris Jobling]] 2012/12/06 04:45//
 ===== Extension Questions =====