Network Firewall Settings for CRC

Last Updated:

The following firewall rules are for H.323 and SIP endpoint access for Zoom meetings and webinars. These rules should be applied to outbound and inbound traffic. Zoom will communicate to the destination port received when the client makes its connection. The firewall should be configured to allow these return connections.

This article covers:

H.323 endpoint access to Zoom Cloud Room Connector
SIP endpoint access to Zoom Cloud Room Connector
Firewall rules for other services

H.323 endpoint access to Zoom Cloud Room Connector

Protocol

Ports

Destination

TCP

443
1720
3000-4000

IPv4:

3.7.35.0/25
3.21.137.128/25
3.22.11.0/24
3.23.93.0/24
3.25.41.128/25
3.25.42.0/25
3.25.49.0/24
3.80.20.128/25
3.96.19.0/24
3.101.32.128/25
3.101.52.0/25
3.104.34.128/25
3.120.121.0/25
3.127.194.128/25
3.208.72.0/25
3.211.241.0/25
3.235.69.0/25
3.235.71.128/25
3.235.72.128/25
3.235.73.0/25
3.235.82.0/23
3.235.96.0/23
4.34.125.128/25
4.35.64.128/25
8.5.128.0/23
13.52.6.128/25
13.52.146.0/25
15.220.80.0/24
15.220.81.0/25
16.63.29.0/24
16.63.30.0/24
18.157.88.0/24
18.205.93.128/25
18.254.23.128/25
18.254.61.0/25
20.203.158.80/28
20.203.190.192/26
50.239.202.0/23
50.239.204.0/24
52.61.100.128/25
52.84.151.0/24
52.202.62.192/26
52.215.168.0/25
64.125.62.0/24
64.211.144.0/24
64.224.32.0/19
65.39.152.0/24
69.174.57.0/24
69.174.108.0/22
99.79.20.0/25
101.36.167.0/24
101.36.170.0/23
103.122.166.0/23
111.33.115.0/25
111.33.181.0/25
115.110.154.192/26
115.114.56.192/26
115.114.115.0/26
115.114.131.0/26
120.29.148.0/24
129.151.1.128/27
129.151.1.192/27
129.151.2.0/27
129.151.3.160/27
129.151.7.96/27
129.151.11.64/27
129.151.11.128/27
129.151.12.0/27
129.151.13.64/27
129.151.15.224/27
129.151.16.0/27
129.151.31.224/27
129.151.40.0/25
129.151.40.160/27
129.151.40.192/27
129.151.41.0/25
129.151.41.192/26
129.151.42.0/27
129.151.42.64/27
129.151.42.128/26
129.151.42.224/27
129.151.43.0/27
129.151.43.64/26
129.151.48.0/27
129.151.48.160/27
129.151.49.0/26
129.151.49.96/27
129.151.49.128/27
129.151.49.192/26
129.151.50.0/27
129.151.50.64/27
129.151.52.128/26
129.151.53.32/27
129.151.53.224/27
129.151.55.32/27
129.151.56.32/27
129.151.57.32/27
129.151.60.192/27
129.159.2.32/27
129.159.2.192/27
129.159.3.0/24
129.159.4.0/23
129.159.6.0/27
129.159.6.96/27
129.159.6.128/26
129.159.6.192/27
129.159.160.0/26
129.159.160.64/27
129.159.163.0/26
129.159.163.160/27
129.159.208.0/21
129.159.216.0/26
129.159.216.64/27
129.159.216.128/26
130.61.164.0/22
132.226.176.0/25
132.226.176.128/26
132.226.177.96/27
132.226.177.128/25
132.226.178.0/27
132.226.178.128/27
132.226.178.224/27
132.226.179.0/27
132.226.179.64/27
132.226.180.128/27
132.226.183.160/27
132.226.185.192/27
134.224.0.0/16
140.238.128.0/24
140.238.232.0/22
144.195.0.0/16
147.124.96.0/19
149.137.0.0/17
150.230.224.0/25
150.230.224.128/26
150.230.224.224/27
152.67.20.0/24
152.67.118.0/24
152.67.168.0/22
152.67.180.0/24
152.67.184.32/27
152.67.240.0/21
152.70.0.0/25
152.70.0.128/26
152.70.0.224/27
152.70.1.0/25
152.70.1.128/26
152.70.1.192/27
152.70.2.0/26
152.70.7.192/27
152.70.10.32/27
152.70.224.32/27
152.70.224.64/26
152.70.224.160/27
152.70.224.192/27
152.70.225.0/25
152.70.225.160/27
152.70.225.192/27
152.70.226.0/27
152.70.227.96/27
152.70.227.192/27
152.70.228.0/27
152.70.228.64/27
152.70.228.128/27
156.45.0.0/17
158.101.64.0/24
158.101.184.0/23
158.101.186.0/25
158.101.186.128/27
158.101.186.192/26
158.101.187.0/25
158.101.187.160/27
158.101.187.192/26
159.124.0.0/16
160.1.56.128/25
161.199.136.0/22
162.12.232.0/22
162.255.36.0/22
165.254.88.0/23
166.108.64.0/18
168.138.16.0/22
168.138.48.0/24
168.138.56.0/21
168.138.72.0/24
168.138.74.0/25
168.138.80.0/25
168.138.80.128/26
168.138.80.224/27
168.138.81.0/24
168.138.82.0/23
168.138.84.0/25
168.138.84.128/27
168.138.84.192/26
168.138.85.0/24
168.138.86.0/23
168.138.96.0/22
168.138.116.0/27
168.138.116.64/27
168.138.116.128/27
168.138.116.224/27
168.138.117.0/27
168.138.117.96/27
168.138.117.128/27
168.138.118.0/27
168.138.118.160/27
168.138.118.224/27
168.138.119.0/27
168.138.119.128/27
168.138.244.0/24
170.114.0.0/16
173.231.80.0/20
192.204.12.0/22
193.122.16.0/25
193.122.16.192/27
193.122.17.0/26
193.122.17.64/27
193.122.17.224/27
193.122.18.32/27
193.122.18.64/26
193.122.18.160/27
193.122.18.192/27
193.122.19.0/27
193.122.19.160/27
193.122.19.192/27
193.122.20.224/27
193.122.21.96/27
193.122.32.0/21
193.122.40.0/22
193.122.44.0/24
193.122.45.32/27
193.122.45.64/26
193.122.45.128/25
193.122.46.0/23
193.122.208.96/27
193.122.216.32/27
193.122.222.0/27
193.122.223.128/27
193.122.226.160/27
193.122.231.192/27
193.122.232.160/27
193.122.237.64/27
193.122.244.160/27
193.122.244.224/27
193.122.245.0/27
193.122.247.96/27
193.122.252.192/27
193.123.0.0/19
193.123.40.0/21
193.123.128.0/19
193.123.168.0/21
193.123.192.224/27
193.123.193.0/27
193.123.193.96/27
193.123.194.96/27
193.123.194.128/27
193.123.194.224/27
193.123.195.0/27
193.123.196.0/27
193.123.196.192/27
193.123.197.0/27
193.123.197.64/27
193.123.198.64/27
193.123.198.160/27
193.123.199.64/27
193.123.200.128/27
193.123.201.32/27
193.123.201.224/27
193.123.202.64/27
193.123.202.128/26
193.123.203.0/27
193.123.203.160/27
193.123.203.192/27
193.123.204.0/27
193.123.204.64/27
193.123.205.64/26
193.123.205.128/27
193.123.206.32/27
193.123.206.128/27
193.123.207.32/27
193.123.208.160/27
193.123.209.0/27
193.123.209.96/27
193.123.210.64/27
193.123.211.224/27
193.123.212.128/27
193.123.215.192/26
193.123.216.64/27
193.123.216.128/27
193.123.217.160/27
193.123.219.64/27
193.123.220.224/27
193.123.222.64/27
193.123.222.224/27
198.251.128.0/17
202.177.207.128/27
204.80.104.0/21
204.141.28.0/22
206.247.0.0/16
207.226.132.0/24
209.9.211.0/24
209.9.215.0/24
213.19.144.0/24
213.19.153.0/24
213.244.140.0/24
221.122.63.0/24
221.122.64.0/24
221.122.88.64/27
221.122.88.128/25
221.122.89.128/25
221.123.139.192/27

IPv6:

2600:9000:2600::/48
2620:123:2000::/40

UDP

3000-4000

IPv4:

IPv6:
2600:9000:2600::/48
2620:123:2000::/40

Signal port: TCP 1720

Note: Open ALG (Application Layer Gateway) for H.323 Support

Control: TCP 3000-4000
RTP: UDP 3000-4000

SIP endpoint access to Zoom Cloud Room Connector

Protocol

Ports

Destination

TCP

443
3000-4000
5060-5061

IPv4:

IPv6:
2600:9000:2600::/48
2620:123:2000::/40

UDP

3000-4000
5060
9000-10000

IPv4:

IPv6:
2600:9000:2600::/48
2620:123:2000::/40

Firewall rules for other services

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Related articles

Network Firewall Settings for CRC

H.323 endpoint access to Zoom Cloud Room Connector

SIP endpoint access to Zoom Cloud Room Connector

Firewall rules for other services

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