LPIC-1: Network Packets and IP Command
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Questions and Answers

What is the purpose of the ip link subcommand?

  • To display the network statistics
  • To configure an interface with an IP address
  • To list the interface links available for configuration (correct)
  • To manipulate routing tables
  • What is the default subcommand for configuring an interface with IPv6 using ip?

  • ip addr remove
  • ip addr change
  • ip addr show
  • ip addr add (correct)
  • What is the purpose of the ifconfig -a option?

  • To display the network statistics
  • To list all available network interfaces (correct)
  • To manipulate routing tables
  • To configure an interface with an IP address
  • What is the command to list the contents of the /sys/class/net directory?

    <p>ls /sys/class/net</p> Signup and view all the answers

    What is the default subcommand for configuring an interface with IPv4 using ifconfig?

    <p>All of the above</p> Signup and view all the answers

    Study Notes

    Network Troubleshooting Tools

    • Hex viewers and protocol analyzers can be used to view packets in more detail than a packet sniffer.

    The ip Command

    • The ip command is a utility used to view and configure network configurations.
    • Each subcommand of ip has its own man page.
    • The SEE ALSO section of the ip man page lists available subcommands.

    Internet Control Message Protocol (ICMP)

    • ICMP is a network layer protocol in the TCP/IP stack.
    • ICMP is used for traffic volume control, detection of unreachable destinations, route redirection, and checking the status of remote hosts.
    • ICMP is used by the ping command.

    IPv6

    • IPv6 is the new version of the IP protocol, with a 128-bit address divided into 8 groups of 16 bits.
    • IPv6 addresses can be abbreviated by reducing strings of 0000 to 0 and omitting strings with a value of 0.
    • IPv6 addresses can be shortened, but this can only be done once in the address.

    Configuring Network Interfaces

    • The ip command can be used to configure network interfaces.
    • The link subcommand for ip lists the interface links available for configuration.
    • The ip addr subcommand is used to view and configure IP addresses.
    • The ifconfig command can also be used to configure network interfaces, but it requires root privilege.

    Listing Network Interfaces

    • The ip link command lists the interface links available for configuration.
    • The /sys/class/net directory can also be used to list network interfaces.

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    Description

    This quiz covers the use of tools such as hex viewers and protocol analyzers to analyze network packets, and the ip command for configuring network settings.

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