Configure organization firewall domain and IP allowlist

1 min read

I. Intro

To ensure Lark runs smoothly on your organization's intranet, the organization will need to configure the following domains and IPs on the firewall allowlist.

II. Domain name and IP allowlist

Domains that need to be on the allowlist for the Lark app

Domains	Protocol	Port numbers
.larksuite.com .ibytedtos.com .byteoversea.com .larksuitecdn.com .larksuitepkg.com .zijieapi.com .volcvideos.com .bytevcloud.com *.baseopendevx.com	https	TCP 443
		http	TCP 80
		quic	UDP 443 80

Video meeting domains and IPs that need to be on the allowlist

Signaling service

Domains	Protocol	Port numbers	Direction	Access type
*.larksuite.com	TLS	443	Outbound	Signaling

Note: When using the Lark meeting effects feature within the organization's intranet, configure the following domain names and IP allowlist in addition to the firewall settings:

Domains that need to be on the allowlist (for meeting effects)

Domain	Protocol	Port numbers
Port domain effect.snssdk.com CDN domain： lf3-effectcdn-tos.byteeffecttos.com lf6-effectcdn-tos.byteeffecttos.com lf9-effectcdn-tos.byteeffecttos.com	https	TCP： 443
		http	TCP： 80
		quic	UDP： 443 80

Media service:

Category	IP Address	Country/Region	Protocol	Port Number	Direction	Access Type
IPs added before December 15, 2023	3.7.25.128/25	India	UDP/TCP	UDP: 50000-55000 80 443 (new) TCP: 80 443 (new)	Bidirectional	Media Service
		3.101.32.0/25					United States
		23.251.115.0/24					United States
		3.235.69.128/25					United States
		15.185.155.0/25					Bahrain
		3.127.194.0/25					Germany
		3.64.95.128/25					Germany
		207.211.211.0/24					Germany
		23.236.112.0/24					Germany
		18.180.159.0/25					Japan
		15.228.62.128/25					Brazil
		108.137.28.0/25					Indonesia
		34.92.178.0/24					Hong Kong, China
		34.92.178.0/25					Hong Kong, China
		156.59.196.0/24					Hong Kong, China
		207.211.208.0/24					Singapore
		103.155.16.0/24					Singapore
		18.141.149.128/25					Singapore
		13.214.1.128/25					Singapore
		199.182.236.0/24					Singapore
		128.14.110.0/24					Singapore
		104.166.159.0/24					Netherlands
IPs to be added on December 15, 2023	23.251.117.0/24	United States
		98.96.213.0/24					United States
		128.14.115.0/24					Brazil
		23.90.170.0/24					Turkey
		192.254.88.0/24					United Arab Emirates
		129.227.200.0/24					India
		156.59.27.0/24					Japan
		129.227.9.0/24					South Korea
		38.54.73.0/24					Hong Kong, China
		156.146.44.0/24					Hong Kong, China
		103.189.255.0/24					Hong Kong, China
		154.85.90.0/24					Singapore
		98.98.121.0/24					Singapore

Written by: Lark Help Center

Updated on 2025-01-07

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