> For the complete documentation index, see [llms.txt](https://docs.wemix.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wemix.com/en/install-and-operation/block-producer-node/firewall-setting.md).

# Firewall Setting

## BP Node Security

The outbound & inbound Security Groups that must be set in the BP node is as follows.

* Outbound

| SOURCE | DESTINATION | SERVICE | PROTOCOL | PORT |
| ------ | ----------- | ------- | -------- | ---- |
| BP     | BP          | p2p     | tcp      | 8589 |
| BP     | BP          | etcd    | tcp      | 8590 |

* Inbound

| SOURCE | DESTINATION | SERVICE | PROTOCOL | PORT |
| ------ | ----------- | ------- | -------- | ---- |
| BP     | BP          | p2p     | tcp      | 8589 |
| BP     | BP          | etcd    | tcp      | 8590 |
| PN     | BP          | p2p     | tcp      | 8589 |

The list of BPs and PNs that need to be applied to the Security Group will be delivered separately as a document when BP is installed.