Network requirements

Note

  • We've renamed Microsoft Cloud App Security. It's now called Microsoft Defender for Cloud Apps. In the coming weeks, we'll update the screenshots and instructions here and in related pages. For more information about the change, see this announcement. To learn more about the recent renaming of Microsoft security services, see the Microsoft Ignite Security blog.

  • Microsoft Defender for Cloud Apps is now part of Microsoft 365 Defender. The Microsoft 365 Defender portal allows security admins to perform their security tasks in one location. This will simplify workflows, and add the functionality of the other Microsoft 365 Defender services. Microsoft 365 Defender will be the home for monitoring and managing security across your Microsoft identities, data, devices, apps, and infrastructure. For more information about these changes, see Microsoft Defender for Cloud Apps in Microsoft 365 Defender.

This article provides a list of ports and IP addresses you need to allow and allowlist to work with Microsoft Defender for Cloud Apps.

View your data center

Some of the requirements below depend on which data center you're connected to.

To see which data center you're connecting to, do the following steps:

  1. In the Defender for Cloud Apps portal, select the question mark icon in the menu bar. Then, select About.

    click About.

  2. In the Defender for Cloud Apps version screen, you can see the region and the data center.

    View your data center.

Portal access

For access to the Defender for Cloud Apps portal, add outbound port 443 for the following IP addresses and DNS names to your firewall's allowlist:

portal.cloudappsecurity.com
*.portal.cloudappsecurity.com
cdn.cloudappsecurity.com
https://adaproddiscovery.azureedge.net
*.s-microsoft.com
*.msecnd.net
dev.virtualearth.net
*.cloudappsecurity.com
flow.microsoft.com
static2.sharepointonline.com
dc.services.visualstudio.com
*.blob.core.windows.net

For US Government GCC High customers, it's also necessary to add the following DNS names to your firewall's allowlist to provide access for the Defender for Cloud Apps GCC High portal:

portal.cloudappsecurity.us
*.portal.cloudappsecurity.us
cdn.cloudappsecurity.com

Additionally, the following items should be allowed, depending on which data center you use:

Data center IP addresses DNS name
US1 13.64.26.88, 13.64.29.32, 13.80.125.22, 13.91.91.243, 40.74.1.235, 40.74.6.204, 51.143.58.207, 52.137.89.147, 52.183.75.62 *.us.portal.cloudappsecurity.com
US2 13.80.125.22, 20.36.222.59, 20.36.222.60, 40.74.1.235, 40.74.6.204, 51.143.58.207, 52.137.89.147, 52.183.75.62, 52.184.165.82 *.us2.portal.cloudappsecurity.com
US3 13.80.125.22, 40.74.1.235, 40.74.6.204, 40.90.218.196, 40.90.218.198, 51.143.58.207, 52.137.89.147, 52.183.75.62 *.us3.portal.cloudappsecurity.com
EU1 13.80.125.22, 40.74.1.235, 40.74.6.204, 40.119.154.72, 51.143.58.207, 52.137.89.147, 52.157.238.58, 52.174.56.180, 52.183.75.62 *.eu.portal.cloudappsecurity.com
EU2 13.80.125.22, 40.74.1.235, 40.74.6.204, 40.81.156.154, 40.81.156.156, 51.143.58.207, 52.137.89.147, 52.183.75.62 *.eu2.portal.cloudappsecurity.com
Gov US1 13.72.19.4, 52.227.143.223 *.us1.portal.cloudappsecurity.us
GCC 52.227.23.181, 52.227.180.126 portal.cloudappsecuritygov.com, *.portal.cloudappsecuritygov.com, *.us1.portal.cloudappsecuritygov.com

Note

For portal access, instead of a wildcard (*), you can choose to open only your specific tenant URL. For example, based on the screenshot above you can open: tenant2.us.portal.cloudappsecurity.com

Access and session controls

Configure your firewall for reverse proxy using the settings relevant to your environment.

Commercial customers

For commercial customers, to enable Defender for Cloud Apps reverse proxy, add outbound port 443 for the following IP addresses and DNS names to your firewall's allowlist:

*.cas.ms
*.mcas.ms
*.admin-mcas.ms
mcasproxy.azureedge.net

Additionally, the following IP addresses used by our reverse proxy regions should be allowed:

IP Addresses DNS Name
Session controls Australia Southeast: 40.81.58.184, 40.81.58.180, 20.40.163.96, 20.40.163.88, 40.81.62.221, 40.81.62.206, 20.40.160.184, 20.40.163.130

Brazil South: 191.235.123.114, 191.235.121.164, 191.235.122.101, 191.235.119.253, 191.233.23.29, 191.234.216.181, 191.233.21.52, 191.234.216.10

Canada Central: 40.82.187.211, 40.82.187.164, 52.139.18.234, 52.139.20.118, 40.82.187.199, 40.82.187.179, 52.139.19.215, 52.139.18.236

Central India: 20.193.137.191, 20.193.137.153, 20.193.138.1, 20.193.136.234, 20.193.131.246, 20.193.131.250, 20.193.131.247, 20.193.131.248

North Europe: 52.156.205.222, 52.156.204.99, 52.155.166.50, 52.142.127.127, 52.155.181.183, 52.155.168.45, 52.156.202.7, 52.142.124.23

Southeast Asia: 40.65.170.125, 40.65.170.123, 52.139.245.40, 52.139.245.48, 40.119.203.158, 40.119.203.209, 20.184.61.67, 20.184.60.77

West Europe: 52.157.233.49, 52.157.235.27, 51.105.164.234, 51.105.164.241

UK West: 40.81.121.140, 40.81.121.135, 51.137.137.121, 51.137.137.118

East US: 104.45.170.196, 104.45.170.182, 52.151.238.5, 52.151.237.243, 104.45.170.173, 104.45.170.176, 52.224.188.157, 52.224.188.168

West US 2: 52.156.88.173, 52.149.61.128, 52.149.61.214, 52.149.63.211, 20.190.7.24, 20.190.6.224, 20.190.7.239, 20.190.7.233
*.mcas.ms
*.admin-mcas.ms
Access controls Australia Southeast: 40.81.63.7, 40.81.59.90, 40.81.62.222, 40.81.62.212, 20.42.228.161

Brazil South: 191.235.123.242, 191.235.122.224, 20.197.208.38, 20.197.208.36,191.235.228.36, 104.41.37.185, 20.201.80.33

North Europe: 40.67.251.0, 52.156.206.47, 52.155.182.49, 52.155.181.181, 20.50.64.15

West Europe: 52.157.234.222, 52.157.236.195, 13.69.81.118, 20.103.48.225

Southeast Asia: 40.65.170.137, 40.65.170.26, 40.119.203.98, 40.119.203.208, 20.43.132.128, 20.24.14.233, 20.195.116.193

UK West: 40.81.127.139, 40.81.127.25, 51.137.163.32

East US: 104.45.170.184, 104.45.170.185, 104.45.170.174, 104.45.170.127, 20.49.104.46, 40.117.113.165, 52.249.211.17

France Central: 20.111.40.153

West US 2: 52.149.59.151, 52.156.89.175, 20.72.216.133, 20.72.216.137,20.115.232.7

Canada Central: 20.48.202.161
*.access.mcas.ms
SAML proxy North Europe: 20.50.64.15

East US: 20.49.104.26

West US 2: 20.42.128.102
*.us.saml.cas.ms *.us2.saml.cas.ms *.us3.saml.cas.ms *.eu.saml.cas.ms *.eu2.saml.cas.ms

US Government offerings

For US Government GCC High customers, to enable Defender for Cloud Apps reverse proxy, add outbound port 443 for the following DNS names to your firewall's allowlist:

*.mcas-gov.us
*.admin-mcas-gov.us
mcasproxy.azureedge.net

Additionally, the following IP Addresses used by our reverse proxy regions, should be allowed:

For US Government GCC High customers:

IP addresses DNS name
Session controls US Gov Arizona: 52.244.144.65, 52.244.43.90, 52.244.43.225, 52.244.215.117

US Gov Virginia: 13.72.27.223, 13.72.27.219, 13.72.27.220, 13.72.27.222
*.mcas-gov.us
*.admin-mcas-gov.us
Access controls US Gov Arizona: 52.244.215.83, 52.244.212.197

US Gov Virginia: 13.72.27.216, 13.72.27.215, 52.127.50.130
*.access.mcas-gov.us
*.access.cloudappsecurity.us
SAML proxy US Gov Arizona: 20.140.49.129

US Gov Virginia: 52.227.216.80
*.saml.cloudappsecurity.us

For US Government GCC customers:

IP addresses DNS name
Session controls US Gov Virginia: 52.245.225.0, 52.245.224.229, 52.245.224.234, 52.245.224.228 *.mcas-gov.ms
*.admin-mcas-gov.ms
Access controls US Gov Virginia: 52.245.224.235, 52.245.224.227, 52.127.50.130 *.access.mcas-gov.ms
SAML proxy US Gov Virginia: 52.227.216.80 *.saml.cloudappsecuritygov.com

SIEM agent connection

To enable Defender for Cloud Apps to connect to your SIEM, add outbound port 443 for the following IP addresses to your firewall's allowlist:

Data center IP addresses
US1 13.64.26.88, 13.64.29.32, 13.80.125.22, 13.91.91.243, 40.74.1.235, 40.74.6.204, 51.143.58.207, 52.137.89.147, 52.183.75.62
US2 13.80.125.22, 20.36.222.59, 20.36.222.60, 40.74.1.235, 40.74.6.204, 51.143.58.207, 52.137.89.147, 52.183.75.62, 52.184.165.82
US3 13.80.125.22, 40.74.1.235, 40.74.6.204, 40.90.218.196, 40.90.218.198, 51.143.58.207, 52.137.89.147, 52.183.75.62
EU1 13.80.125.22, 40.74.1.235, 40.74.6.204, 40.119.154.72, 51.143.58.207, 52.137.89.147, 52.157.238.58, 52.174.56.180, 52.183.75.62
EU2 13.80.125.22, 40.74.1.235, 40.74.6.204, 40.81.156.154, 40.81.156.156, 51.143.58.207, 52.137.89.147, 52.183.75.62
Gov US1 13.72.19.4, 52.227.143.223
GCC 52.227.23.181, 52.227.180.126

Note

  • If you didn't specify a proxy when you set up the Defender for Cloud Apps SIEM agent, you need to allow http connections on port 80 for the URLs listed on the Azure TLS certificate changes page. This is used for checking certificate revocation status when you connect to the Defender for Cloud Apps portal.
  • A genuine Microsoft Defender for Cloud Apps certificate usage is required for the SIEM agent connection.

App connector

For some third-party apps to be accessed by Defender for Cloud Apps, these IP addresses may be used. The IP addresses enable Defender for Cloud Apps to collect logs and provide access for the Defender for Cloud Apps console.

Note

You may see these IP addresses in activity logs from the vendor because Defender for Cloud Apps performs governance actions and scans from these IP addresses.

To connect to third-party apps, enable Defender for Cloud Apps to connect from these IP addresses:

Data center IP addresses
US1 13.64.26.88, 13.64.29.32, 13.64.30.76, 13.64.30.117, 13.64.30.118, 13.64.31.116, 13.64.196.27, 13.64.198.19, 13.64.198.97, 13.64.199.41, 13.68.76.47, 13.86.176.189, 13.86.176.211, 13.91.61.249, 13.91.91.243, 13.91.98.185, 13.93.216.68, 13.93.233.42, 40.118.211.172, 104.42.54.148, 104.209.35.177, 40.83.194.192, 40.83.194.193, 40.83.194.194, 40.83.194.195, 40.83.194.196, 40.83.194.197, 40.83.194.198, 40.83.194.199, 40.83.194.200, 40.83.194.201, 40.83.194.202, 40.83.194.203, 40.83.194.204, 40.83.194.205, 40.83.194.206, 40.83.194.207, 13.64.16.134, 13.64.16.130, 13.64.16.131, 13.64.16.136, 13.64.16.133, 13.64.16.137, 13.64.16.132, 13.64.16.129, 13.64.16.138, 13.64.16.135
US2 13.68.76.47, 20.36.222.59, 20.36.222.60, 40.67.152.91, 40.67.154.160, 40.67.155.146, 40.67.159.55, 40.84.2.83, 40.84.4.93, 40.84.4.119, 52.184.165.82, 52.232.224.227, 52.232.225.84, 104.42.54.148, 104.46.116.211, 104.46.116.211, 104.46.121.72, 104.46.121.72, 104.46.122.189, 104.46.122.189, 20.57.54.192, 20.57.54.193, 20.57.54.194, 20.57.54.195, 20.57.54.196, 20.57.54.197, 20.57.54.198, 20.57.54.199, 20.57.54.200, 20.57.54.201, 20.57.54.202, 20.57.54.203, 20.57.54.204, 20.57.54.205, 20.57.54.206, 20.57.54.207, 20.85.63.179, 20.85.63.177, 20.85.63.185, 20.85.63.183, 20.85.63.180, 20.85.63.184, 20.85.63.182, 20.85.63.178, 20.85.63.181, 20.85.63.186
US3 13.68.76.47, 40.90.218.196, 40.90.218.197, 40.90.218.198, 40.90.218.203, 40.90.220.190, 40.90.220.196, 51.143.120.236, 51.143.120.242, 104.42.54.148, 52.156.123.128, 52.156.123.129, 52.156.123.130, 52.156.123.131, 52.156.123.132, 52.156.123.133, 52.156.123.134, 52.156.123.135, 52.156.123.136, 52.156.123.137, 52.156.123.138, 52.156.123.139, 52.156.123.140, 52.156.123.141, 52.156.123.142, 52.156.123.143, 20.115.249.168, 20.115.249.160, 20.115.249.161, 20.115.249.169, 20.115.249.164, 20.115.249.166, 20.115.249.165, 20.115.249.170, 20.115.249.163, 20.115.249.167
EU1 13.80.22.71, 13.95.29.177, 13.95.30.46, 40.67.219.133, 40.114.217.8, 40.114.217.8, 40.115.24.65, 40.115.24.65, 40.115.25.50, 40.115.25.50, 40.119.154.72, 51.105.55.62, 51.105.179.157, 51.137.200.32, 52.157.232.110, 52.157.233.92, 52.157.233.133, 52.157.238.58, 52.157.239.110, 52.174.56.180, 20.73.240.208, 20.73.240.209, 20.73.240.210, 20.73.240.211, 20.73.240.212, 20.73.240.213, 20.73.240.214, 20.73.240.215, 20.73.240.216, 20.73.240.217, 20.73.240.218, 20.73.240.219, 20.73.240.220, 20.73.240.221, 20.73.240.222, 20.73.240.223, 20.101.177.19, 20.101.177.21, 20.101.177.18, 20.101.177.20, 20.101.177.17, 20.101.177.16, 20.101.177.23, 20.101.177.25, 20.101.177.22, 20.101.177.24, 20.101.177.27, 20.101.177.30, 20.101.177.31, 20.101.177.26, 20.101.177.28, 20.101.177.29
EU2 40.81.152.171, 40.81.152.172, 40.81.156.153, 40.81.156.154, 40.81.156.155, 40.81.156.156, 51.105.55.62, 51.137.200.32, 51.145.108.227, 51.145.108.250, 20.58.119.224, 20.58.119.225, 20.58.119.226, 20.58.119.227, 20.58.119.228, 20.58.119.229, 20.58.119.230, 20.58.119.231, 20.58.119.232, 20.58.119.233, 20.58.119.234, 20.58.119.235, 20.58.119.236, 20.58.119.237, 20.58.119.238, 20.58.119.239, 20.108.77.57, 20.108.77.54, 20.108.77.49, 20.108.77.53, 20.108.77.52, 20.108.77.55, 20.108.77.51, 20.108.77.58, 20.108.77.50, 20.108.77.56, 20.26.34.120, 20.108.140.27, 20.108.139.189, 20.108.140.32, 20.108.140.44, 20.108.140.64, 20.108.139.112, 20.108.139.147, 20.108.139.131, 20.108.140.55, 20.108.139.199, 20.108.139.236, 20.108.139.172, 20.108.139.132, 20.108.139.213, 20.108.139.145
Gov US1 52.227.138.248, 52.227.142.192, 52.227.143.223, 20.141.237.150, 20.141.168.108, 20.141.229.90, 52.245.229.181, 20.141.169.206, 20.141.66.57, 52.245.248.176, 20.141.83.238, 52.235.172.25, 20.141.65.135, 20.141.168.228, 20.141.228.42, 20.141.229.9, 20.141.169.251, 20.141.70.136, 20.141.225.225
GCC 52.227.23.181, 52.227.180.126, 20.141.235.17, 20.141.236.69, 52.245.248.46, 20.141.235.182, 52.245.248.186, 20.141.236.251, 20.141.238.58, 20.141.238.71, 52.245.248.137, 52.245.249.102, 20.141.236.184, 52.245.249.161, 20.141.236.160, 52.245.249.166, 52.245.249.194, 20.141.237.71

Third-party DLP integration

To enable Defender for Cloud Apps to send data through your stunnel to your ICAP server, open your DMZ firewall to these IP addresses with a dynamic source port number.

  1. Source addresses - These addresses should be allowed as listed above for API connector third-party apps
  2. Source TCP port - Dynamic
  3. Destination address(es) - One or two IP address of the stunnel connected to the external ICAP server
  4. Destination TCP port - As defined in your network

Note

  • By default the stunnel port number is set to 11344. You can change it to another port if necessary, but be sure to make note of the new port number.
  • You may see these IP addresses in activity logs from the vendor because Defender for Cloud Apps performs governance actions and scans from these IP addresses.

To connect to third-party apps and integrate with external DLP solutions, enable Defender for Cloud Apps to connect from these IP addresses:

Data center IP addresses
US1 13.64.26.88, 13.64.29.32, 13.64.30.76, 13.64.30.117, 13.64.30.118, 13.64.31.116, 13.64.196.27, 13.64.198.19, 13.64.198.97, 13.64.199.41, 13.86.176.189, 13.86.176.211, 13.91.61.249, 13.91.91.243, 13.91.98.185, 13.93.216.68, 13.93.233.42, 40.118.211.172, 104.209.35.177, 13.64.16.134, 13.64.16.130, 13.64.16.131, 13.64.16.136, 13.64.16.133, 13.64.16.137, 13.64.16.132m 13.64.16.129, 13.64.16.138, 13.64.16.135
US2 20.36.222.59, 20.36.222.60, 40.67.152.91, 40.67.154.160, 40.67.155.146, 40.67.159.55, 40.84.2.83, 40.84.4.93, 40.84.4.119, 52.184.165.82, 52.232.224.227, 52.232.225.84, 104.46.116.211, 104.46.116.211, 104.46.121.72, 104.46.121.72, 104.46.122.189, 104.46.122.189, 20.85.63.179, 20.85.63.177, 20.85.63.185, 20.85.63.183, 20.85.63.180, 20.85.63.184, 20.85.63.182, 20.85.63.178, 20.85.63.181, 20.85.63.186
US3 40.90.218.196, 40.90.218.197, 40.90.218.198, 40.90.218.203, 40.90.220.190, 40.90.220.196, 51.143.120.236, 51.143.120.242, 20.115.249.168, 20.115.249.160, 20.115.249.161, 20.115.249.169, 20.115.249.164, 20.115.249.166, 20.115.249.165, 20.115.249.170, 20.115.249.163, 20.115.249.167
EU1 13.80.22.71, 13.95.29.177, 13.95.30.46, 40.67.219.133, 40.114.217.8, 40.114.217.8, 40.115.24.65, 40.115.24.65, 40.115.25.50, 40.119.154.72, 51.105.179.157, 52.157.232.110, 52.157.233.92, 52.157.233.133, 52.157.238.58, 52.157.239.110, 52.174.56.180, 20.101.177.19, 20.101.177.21, 20.101.177.18, 20.101.177.20, 20.101.177.17, 20.101.177.16, 20.101.177.23, 20.101.177.25, 20.101.177.22, 20.101.177.24, 20.101.177.27, 20.101.177.30, 20.101.177.31, 20.101.177.26, 20.101.177.28, 20.101.177.29
EU2 40.81.152.171, 40.81.152.172, 40.81.156.153, 40.81.156.154, 40.81.156.155, 40.81.156.156, 51.145.108.227, 51.145.108.250, 20.108.77.57, 20.108.77.54, 20.108.77.49, 20.108.77.53, 20.108.77.52, 20.108.77.55, 20.108.77.51, 20.108.77.58, 20.108.77.50, 20.108.77.56

Mail server

To enable notifications to be sent from the default template and settings, add these IP addresses to your anti-spam allowlist. The Defender for Cloud Apps dedicated email IP addresses are:

  • 65.55.234.192/26
  • 207.46.50.192/26
  • 65.55.52.224/27
  • 94.245.112.0/27
  • 111.221.26.0/27
  • 207.46.200.0/27

If you want to customize the email sender identity, Microsoft Defender for Cloud Apps enables customization by using MailChimpĀ®, a third-party email service. To make it work, in the Microsoft Defender for Cloud Apps portal, go to Settings. Select Mail settings and review MailChimp's Terms of Service and Privacy Statement. Then, give Microsoft permission to use MailChimp on your behalf.

If you don't customize the sender identity, your email notifications will be sent using all the default settings.

To work with MailChimp, add this IP address to your anti-spam allowlist to enable notifications to be sent: 198.2.134.139 (mail1.cloudappsecurity.com)

Log collector

To enable Cloud Discovery features using a log collector and detect Shadow IT in your organization, open the following items:

Note

  • If your firewall requires a static IP address access list and does not support allowing based on URL, allow the log collector to initiate outbound traffic to the Microsoft Azure datacenter IP ranges on port 443.
  • If you didn't specify a proxy when you set up the log collector, you need to allow http connections on port 80 for the URLs listed on the Azure TLS certificate changes page. This is used for checking certificate revocation status when you connect to the Defender for Cloud Apps portal.

Next steps

If you run into any problems, we're here to help. To get assistance or support for your product issue, please open a support ticket.