IPv6 Internetworking

Tasks

Your task is to enable IPv6 addresses between the nodes in your experiment.

1. Run:

       ifconfig
     

   on each node, discover and note the interface for each IPv4 address shown in the topology diagram above. Also note the IPv6 address assigned to each interface that you just discovered.
2. Ping the router from client and server using the link-local addresses and using the interfaces on client and server node that face the router.

   ping6 -I ethx -c 1 fe80::/64 (use the addresses from your experiment)
   

3. Verify that IPv6 kernel is running on the router, client and server nodes.

   test -f /proc/net/if_inet6 && echo "Running kernel is IPv6 ready"
   

4. Install netplan on router, client and server (use sudo):

   apt update -y
   apt install netplan.io network-manager -y
   

   Edit /etc/netplan/config.yaml file on router, client and server nodes to include script for each interface.

   Note: remember the router has two interfaces; replace ethx and ethy below with the correct ethernet interfaces from your experiment!

   Router node:

   # This file describes the network interfaces available on your system
   # For more information, see netplan(5).
   network:
     version: 2
     renderer: NetworkManager
     ethernets:
       ethx:
         dhcp4: false
         dhcp6: false
         addresses:
             - 5.6.7.2/24
             - 2001:0db8:0100:f101::250/64
       ethy:
         dhcp4: false
         dhcp6: false
         addresses:
             - 1.1.2.2/24
             - 2001:0db8:0100:f102::250/64
   

   Client node:

   # This file describes the network interfaces available on your system
   # For more information, see netplan(5).
   network:
     version: 2
     renderer: NetworkManager
     ethernets:
       ethx:
         dhcp4: false
         dhcp6: false
         gateway6: 2001:0db8:100:f102::2
         addresses:
             - 1.1.2.3/24
             - 2001:0db8:0100:f102::2/64
   

   Server node:

   # This file describes the network interfaces available on your system
   # For more information, see netplan(5).
   network:
     version: 2
     renderer: NetworkManager
     ethernets:
       ethx:
         dhcp4: false
         dhcp6: false
         gateway6: 2001:0db8:100:f101::1
         addresses:
             - 5.6.7.8/24
             - 2001:0db8:0100:f101::1/64
   

   After installing netplan and editing yaml file, apply all settings on router, client and server nodes.

   netplan apply
   

5. Run ifconfig on router, client and server to see the IPv6 addresses added. Run ip command from router to see the link-local addresses of client and server.

   ip -6 neigh show
   

   /sbin/ip -6 route show dev ethx
   

6. Configure your router node as a IPv6 router. Enable forwarding by typing:

       sysctl -w net.ipv6.conf.all.forwarding=1
       

7. Try pinging client from server, using the client's IPv6 address.

   Submission Instructions

   Submit the following, all in one tar-gzipped file
   1. Annotated topology with IPv4 and IPv6 addresses and interface names (e.g., eth1)
   2. Your netplan configuration files
   3. Output of the following command, ran at client node:

          traceroute -6 2001:db8:100:f101::1