---
title: "calicoctl ipam configure"
description: "Reference for the calicoctl IPAM configure command in Calico Open Source, used to set IP address management options such as strict affinity."
product: "Calico Open Source"
version: "3.32 (latest)"
section: "Reference"
canonical_url: "https://docs.tigera.io/calico/latest/reference/calicoctl/ipam/configure"
---

# calicoctl ipam configure

This section describes the `calicoctl ipam configure` command.

Read the [calicoctl overview](https://docs.tigera.io/calico/latest/reference/calicoctl/overview.md) for a full list of calicoctl commands.

## Displaying the help text for 'calicoctl ipam configure' command

Run `calicoctl ipam configure --help` to display the following help menu for the command.

```text
Usage:
  calicoctl ipam configure --strictaffinity=<true/false>
                           [--max-blocks-per-host=<number>]
                           [--kubevirt-ip-persistence=<Enabled|Disabled>]
                           [--config=<CONFIG>]

Options:
  -h --help                        Show this screen.
     --strictaffinity=<true/false>  Set StrictAffinity to true/false. When StrictAffinity
                                    is true, borrowing IP addresses is not allowed.
     --max-blocks-per-host=<number> Set the maximum number of blocks that can be affine
                                    to a host.
     --kubevirt-ip-persistence=<Enabled|Disabled>
                                    Control whether KubeVirt VMs retain persistent IP
                                    addresses across lifecycle events.
  -c --config=<CONFIG>              Path to the file containing connection configuration in
                                    YAML or JSON format.
                                    [default: /etc/calico/calicoctl.cfg]

Description:
 Modify configuration for Calico IP address management.
```

### Examples

```bash
calicoctl ipam configure --strictaffinity=true
```

```bash
calicoctl ipam configure --kubevirt-ip-persistence=Enabled
```

### General options

```text
-c --config=<CONFIG>      Path to the file containing connection
                          configuration in YAML or JSON format.
                          [default: /etc/calico/calicoctl.cfg]
```

## See also

- [Installing calicoctl](https://docs.tigera.io/calico/latest/operations/calicoctl/install.md)