Exit Zen
38
../../exercises/ipv6.rst:384
English
on router ``R5``
0/160 · 16
39
../../exercises/ipv6.rst:399
English
on router ``R4``
0/160 · 16
40
../../exercises/ipv6.rst:416
English
on router ``R6``
0/160 · 16
41
../../exercises/ipv6.rst:433
English
What do you think about the proposed configuration?
0/510 · 51
42
../../exercises/ipv6.rst:436
English
Sometimes, static routes must be configured on networks to enforce certain paths. Consider the six routers network shown in the figure below.
0/1410 · 141
43
../../exercises/ipv6.rst:471
English
In this network, we will focus on four IPv6 prefixes :
0/540 · 54
44
../../exercises/ipv6.rst:473
English
``p:0000::/64`` used on the link ``A1-R1``. ``A1`` uses address ``p:0000::A1/64``
0/810 · 81
45
../../exercises/ipv6.rst:474
English
``p:0001::/64`` used on the link ``A2-R3``. ``A2`` uses address ``p:0001::A2/64``
0/810 · 81
46
../../exercises/ipv6.rst:475
English
``p:0002::/64`` used on the link ``B1-R5``. ``B1`` uses address ``p:0002::B1/64``
0/810 · 81
47
../../exercises/ipv6.rst:476
English
``p:0003::/64`` used on the link ``B2-R6``. ``B2`` uses address ``p:0003::B2/64``
0/810 · 81
48
../../exercises/ipv6.rst:478
English
Can you configure the forwarding tables of the six routers to achieve the following network objectives :
0/1040 · 104
49
../../exercises/ipv6.rst:480
English
All packets sent by ``B1`` and ``B2`` to ``A1`` and ``A2`` are always forwarded via ``R2`` while all packets from ``A1`` and ``A2`` are always forwarded via ``R4``
0/1630 · 163
50
../../exercises/ipv6.rst:481
English
The packets whose destinations are ``A1``, ``A2``, ``B1`` or ``B2`` are never forwarded via router ``R4``
0/1060 · 106
51
../../exercises/ipv6.rst:482
English
The packets sent by ``A1`` or ``A2`` towards ``B1`` are always forwarded via ``R2`` while the packets towards ``B2`` are always forwarded via ``R4``.
0/1490 · 149
52
../../exercises/ipv6.rst:484
English
When creating these forwarding tables, try to minimize the number of entries that you install on each router.
0/1090 · 109
53
../../exercises/ipv6.rst:486
English
When a network is designed, an important element of the design is the IP address allocation plan. A good allocation plan can provide flexibility and help to reduce the size of the forwarding tables.
0/1980 · 198
54
../../exercises/ipv6.rst:517
English
Assign IP subnets to all links in this network so that you can reduce the number of entries in the forwarding tables of all routers. Assume that you have received a ``/56`` prefix that you can use as you want. Each subnet containing a host must be allocated a ``/64`` subnet.
0/2750 · 275
55
../../exercises/ipv6.rst:527
English
Configuring IPv6 Networks
0/250 · 25
56
../../exercises/ipv6.rst:529
English
With the previous exercises, you have learned how to reason about IPv6 networks "on paper". Given the availability of IPv6 implementations, it is also possible to carry out experiments in real and virtual labs. Several virtual environments are possible. In this section, we focus on mininet_. mininet_ is an emulation framework developed at Stanford University that leverages the namespaces features of recent Linux kernels. With those namespaces, a single Linux kernel can support a variety of routers and hosts interconnected by virtual links. mininet_ has been used by several universities as an educational tool, but unfortunately it was designed without IPv6 support.
0/6720 · 672
57
../../exercises/ipv6.rst:531
English
During the last years, `Olivier Tilmans <https://inl.info.ucl.ac.be/otilmans.html>`_ and `Mathieu Jadin <https://inl.info.ucl.ac.be/mjadin.html>`_ have developed the missing piece to enable students to use mininet_ to experiment with IPv6: ipmininet_. ipmininet_ is a python module that provides the classes that are required to automatically configure IPv6 networks with different routing protocols. It is available from PyPi from https://pypi.python.org/ipmininet.
0/4670 · 467