---
title: "POST /command/lfn/leaveMCGroup"
method: POST
path: "/command/lfn/leaveMCGroup"
---

# POST /command/lfn/leaveMCGroup

`POST /command/lfn/leaveMCGroup`

Request an LFN to leave a multicast group, following the process described in [FANTPS] section 6.2.3.1.4.3.

## Request body

- MulticastGroup — A multicast group to be joined or left.
  - `multicastAddress` string, required — The multicast address to be joined or left. IPv6 address strings are formatted per RFC 5952.
  - `multicastLifetime` integer — 16-bit unsigned integer. The lifetime, in minutes, of the device's multicast group address registration. [RFC 6775 Section 4.1]

## Response `200`

Device will initiate multicast group resignation.

## Other responses

- `400` — Device is not an LFN.
- `default` — Unknown error occurred

---

[API](https://skmtc.net/siliconlabs/apis/tbu-api.md) · [All operations](https://skmtc.net/siliconlabs/apis/tbu-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/siliconlabs/tbu-api/versions/8475de394ee2/schema)