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../../protocols/rpc.rst:25
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Encoding data
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../../protocols/ssh.rst:86
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Message Authentication Code (MAC)
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../../protocols/tcp.rst:32
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TCP header format
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../../protocols/tls.rst:43
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995
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../../protocols/transport-service.rst:23
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`IP version 6` addresses that are 128 bits wide
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../../protocols/udp.rst:53
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a 16 bits source port
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../../protocols/wifi.rst:22
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802.11
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../../bibliography.rst:39
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Calvert, K., Donahoo, M., `TCP/IP Sockets in Java : Practical Guide for Programmers <http://books.google.com/books?id=lfHo7uMk7r4C>`_, Morgan Kaufman, 2008
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../../glossary.rst:48
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ARPANET
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../../exercises/ex-sharing.rst:231
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With CSMA, hosts need to listen to the communication channel before starting their transmission. Consider again a 2 kilometers long cable where hosts send frames at 100 Mbps. Show in the figure below the correct transmission of frames with CSMA.
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../../principles/security.rst:155
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Eavesdropping and pervasive monitoring are not the only possible attacks against a network. Another type of attacker is the active attacker. In the literature, these attacks are often called `Man in the middle` or `MITM` attacks. Such attacks occur when one user, let us call him `Mallory`, has managed to configure the network so that he can both capture and modify the packets exchanged by two users. The simplest scenario is when Mallory controls a router that is on the path used by both Alice and Bob. For example, Alice could be connected to a WiFi access router controlled by Mallory and Bob would be a regular server on the Internet.
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../../exercises/dns.rst:41
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What are the IP addresses of the resolvers that the `dig` implementation you are using relies on [#fdig]_ ?
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../../exercises/email.rst:27
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On Unix hosts, a subset of the port assignments is often placed in `/etc/services`.
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../../exercises/http.rst:33
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Some websites are reachable over both IPv4 and IPv6 while others are only reachable over IPv4 [#fv6only]_. You can use the `-6` (resp. `-4`) option to force curl_ to only use IPv6 (resp. IPv4). Verify that `www.computer-networking.info` is reachable over IPv6 and IPv4 and then check whether your university website already supports IPv6.
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../../exercises/ipv6.rst:41
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router ``R2`` uses address ``2001:db8:1341:12::2`` on its West interface, address ``2001:db8:1341:23::2`` on its South-West interface and address ``2001:db8:1341:24::2`` on its South interface.
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../../exercises/lan.rst:83
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Fig. 4. Can `H0` and `H1` communicate ?
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../../exercises/routing-policies.rst:141
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Should `AS123` change its configuration ?
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../../exercises/routing-protocols.rst:175
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The ``show ipv6 ospf6`` command reports the general state of the OSPFv3 daemon. The ``show ipv6 ospf6 neighbor`` command reports the state of the connected neighbors.
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../../exercises/tcp-2.rst:63
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The ``0`` indicates that the system call must be issued immediately. packetdrill_ then executes the system call and verifies that it returns ``3```. If yes, the processing continues. Otherwise the script stops and indicates an error.
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../../exercises/trace.rst:79
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tcpdump_ can provide more detailed information about the packets by using the `-v` or `-vv` option.
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