Manual Chapter : Configure DAG IPv6 prefix length from the CLI

Applies To:

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F5OS-C

  • 1.6.0
Manual Chapter

Configure DAG IPv6 prefix length from the CLI

You can configure the DAG IPv6 prefix length from the chassis partition CLI. DAG IPv6 prefix length is a configuration field on each tenant that is used by disaggregator algorithms as a networking mask. The valid configuration value is from 1 to 128. The default value is 128. You can configure the value from either the chassis partition or the tenant.
When you configure the value at the chassis partition level, it is pushed automatically to the tenant. When you configure the prefix length at the tenant level, future configuration at the chassis partition level is disabled and must be re-enabled from the tenant.
  1. Log in to the command line interface (CLI) of the chassis partition using an account with admin access.
    When you log in to the system, you are in user (operational) mode.
  2. Change to config mode.
    config
    The CLI prompt changes to include
    (config)
    .
  3. Configure DAG IPv6 prefix length while creating a tenant.
    This propagates the value to the tenant.
  4. Configure DAG IPv6 prefix length from the system after the tenant is created.
    This propagates the value to the tenant.
    tenants tenant <
    tenant-name
    > config dag-ipv6-prefix-length <value>
    This example changes the DAG IPv6 prefix length of a tenant named "velos-bigip" to 120.
    default-1(config)# tenants tenant velos-bigip config dag-ipv6-prefix-length 120
  5. Commit the configuration changes.
    commit
If you configure the DAG IPv6 prefix length, but the value is not propagated to the tenant, you might have previously configured this value externally (such as from the tenant's webUI, CLI, or REST APIs). This disables configuration at the chassis partition level. On a BIG-IP tenant, run this command sequence to re-enable configuration:
tmsh mod sys db dag.userconfigipv6prefixlen value false