Manual Chapter : Change the internal network IP range

Applies To:

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F5OS

  • 1.1.1, 1.1.0
Manual Chapter

Change the internal network IP range

The VELOS internal chassis network uses 100.64.0.0/12 addresses. If your network needs to use this range, you can change the range of IP addresses that the internal chassis network implements. Instead, you can choose one of 16 possible address ranges in the 10.0.0.0/12 address range.
It is recommended that you make this change before initial configuration or immediately after.
  1. If you have not performed initial setup of the system and configured management IP addresses, connect using the management console. If setup is already complete, log in using the floating IP address.
  2. Log in using the admin account.
    The default login credentials are admin/admin. For example, if you log on from the console:
    Welcome to the F5OS System Controller Management CLI admin connected from 127.0.0.1 using console on syscon-1-active syscon-1-active#
  3. Change to config mode.
    config
    The CLI prompt changes to include
    (config)
    .
  4. Change the internal network range to RFC1918.
    system network config network-range-type RFC1918
  5. List the network prefix index ranges:
    syscon-1-active(config)# system network config prefix ? Description: The network prefix index is used to select the range of IP addresses used internally within the chassis. The network prefix should be selected such that internal chassis addresses do not overlap with site-local addresses that are accessible to the chassis. Network Prefix Index Chassis Network Range 0 10.[0-15].0.0/12 1 10.[16-31].0.0/12 2 10.[32-47].0.0/12 3 10.[48-63].0.0/12 4 10.[64-79].0.0/12 5 10.[80-95].0.0/12 6 10.[96-111].0.0/12 7 10.[112-127].0.0/12 8 10.[128-143].0.0/12 9 10.[144-159].0.0/12 10 10.[160-175].0.0/12 11 10.[176-191].0.0/12 12 10.[192-207].0.0/12 13 10.[208-223].0.0/12 14 10.[224-239].0.0/12 15 10.[240-255].0.0/12 Possible completions: <unsignedByte, 0 .. 15>[0]
  6. Select the network range to use for internal networking (0-15).
    system network config prefix <0-15>
    For example, to set the range to 10.[0-15].0.0/12, set the network prefix index to 0.
    system network config prefix 0
    This example sets the VELOS internal chassis network to 10.[0-15].0.0/12.
  7. Commit the configuration changes.
    commit
  8. Power cycle the chassis.
    Changing the internal chassis network causes an automatic cluster reinstall process that takes approximately an hour to complete.
  9. Check the status of the cluster reinstallation.
    show cluster install-progress
    Example:
    syscon-1-active# show cluster install-progress STAGE NAME STATUS --------------------------------- AddingBlade Done HealthCheck Done HostedInstall Done MasterAdditionalInstall Done MasterInstall Done NodeBootstrap Done NodeJoin Done Prerequisites Done ServiceCatalogInstall Done etcdInstall Done
    When the install status is done for all stages, you can resume configuring the system.