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CA API Gateway - 9.1
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Option 1 - Configure Networking and System Time Settings

Last update April 26, 2018

This section describes option 1 (Configure networking and system time settings) from the Gateway System Settings option in the CA API Gateway main menu.

Tips:  (1) After configuring the networking and system time settings using the directions below, you can update the settings using the Restricted Shell commands. For more information, see "Commands for Network Configuration" and "Commands for System Configuration" in Option 5 - Use Restricted Shell. (2) If you choose to use "Option 1 - Configure networking and system time settings" again to update, be sure to complete the configuration wizard by pressing [Enter] to accept all your unchanged values, until the end of the wizard is reached. (3) Configuring a time server, though optional, is highly recommended.

Use this option to configure networking, the time zone, and time synchronization on your Gateway.

  1. The detected interfaces are shown. Enter the number of the interface to configure or choose "Configure an unlisted interface" to configure a new interface.
  2. Specify whether to enable the interface upon boot.
  3. If configuring a new interface, enter the name of the interface (e.g., eth1).
  4. Specify whether to configure IPv4 networking. If no, skip to step 7 to configure IPv6 networking.
  5. Specify the boot protocol for the interface: static or dhcp (dynamic).
  6. If the protocol is static, enter the following details for the interface:
    IPv4 address
    IPv4 netmask

    IPv4 gateway
    If the protocol is dhcp, you can either enter the DHCP hostname or leave this value empty to skip to the next question.

    Note: Providing a DHCP hostname is recommended in most environments using DNS servers with DHCP.

  7. Specify whether to configure IPv6 networking. If yes, continue with step 8. If no, you are prompted whether to configure another interface (yes = return to step 1; no = skip to step 11).
  8. Specify whether to enable IPv6 auto-configuration for the interface.

    Technical note: If enabled, an IPv6 address is requested using Neighbor Discovery (ND) from a router running the radvd daemon. For more information, see "IPV6_AUTOCONF" on this page of the Red Hat documentation.

  9. Specify whether to enable DHCPipv6 for the interface. Proceed to step 10 if enabled, otherwise follow the prompts on the screen.
  10. Enter a static IPv6 address and optionally enter one or more secondary addresses.
  11. Specify whether to configure a default Gateway for the interface(s) that you have enabled. Configuring a default Gateway is optional. For more information, see "Determining Whether a Default Gateway is Necessary" under Gateway System Settings (Appliance).
    If you enter yes, provide the following information:
    1. Enter the IP address of the Gateway.
    2. Select the device (interface) to use from the list displayed.

    Tip: Entering a blank in either field clears the setting for that field.

    The prompts repeat for a default IPv6 Gateway.

  12. Enter the fully qualified hostname for the Gateway (for example, "").
  13. Optionally specify the name servers and/or search domains. Leave these blanks to have the name servers and search domains generated by DHCP.

  14. Specify whether to configure the time zone for the Gateway. By default, the time zone for the appliance Gateway is "America/Vancouver", while the software Gateway uses the time zone in effect on the host machine.
    • If yes, keep selecting from the lists presented until your choice results in a single time zone.
    • If no, proceed to the next step in the configuration.
  15. Specify whether to configure time synchronization on the machine.

    Note: Time synchronization is essential for clustering and for features such preventing replay attacks and enforcing throughput quotas.

    • If yes, enter the IP address or hostname of the NTP time server.
    • If no, proceed to the next step in the configurator.
  16. Carefully review the configuration settings.
    • To accept your configuration settings, enter y to save the changes. If the configuration results contain errors, analyze the errors and run option 1 again.
    • To discard all your entries and exit the configurator, type q or quit.
Note: If you did not configure a nameserver in step 13 or if the nameserver that was configured does not recognize the hostname entered in step 12 then the hostname may not be resolvable. To prevent this from happening, either configure a nameserver in step 13 or ensure that there is an appropriate entry in /etc/hosts for this hostname. This can be done using the Network Configuration commands using the ‘hosts’ subshell; see "Commands for Network Configuration" in Option 5 - Use Restricted Shell.
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  1. Dustin Dauncey
    2016-12-14 03:19

    "Commands for Network Configuration" in the bottom note links to the internal page, not the public-facing page.

    1. Carl Lum
      2016-12-16 12:30

      Thanks for spotting this, Dustin. I have removed the link for "Commands for Network Configuration". There shouldn't have been a link there; it was added in error. The link for "Option 5 - Use Restricted Shell" is sufficient.