Set up your network for Skype Meeting Broadcast

After you enable Skype Meeting Broadcast, you need to configure your network. Do this step if you want to hold webinars and other broadcasts for people outside of your business.

If you aren't experienced with configuring your firewall, consider hiring a Microsoft partner to do this step for you.

To skip this step and instead add another business to your federation so you can invite them to broadcasts, follow the steps in Users can contact external Skype for Business users.

Step 1: Set up allowed domains

Use one of the following methods to set up allowed domains:

  1. Go to the Office 365 admin center and then in the left nav, click External Sharing then Skype for Business.

  2. Under Only for allowed domains, enter the following domains but separate them with a comma (,):

    • noammeetings.lync.com

    • emeameetings.lync.com

    • apacmeetings.lync.com

    • resources.lync.com

  3. Click Save.

  1. From the Start Menu > Windows PowerShell > right click and Run as administrator. In the Windows PowerShell window, type each line and press Enter.

    $r = New-CsEdgeDomainPattern -Domain "noammeetings.lync.com"

    $s = New-CsEdgeDomainPattern -Domain "emeameetings.lync.com"

    $t = New-CsEdgeDomainPattern -Domain "apacmeetings.lync.com"

    $n = New-CsEdgeDomainPattern -Domain "resources.lync.com"

    $newAllowList = New-CsEdgeAllowList -AllowedDomain $r,$s,$t,$n

    Set-CsTenantFederationConfiguration -AllowedDomains $newAllowList

Step 2: Add Skype Meeting Broadcast domains, URLs and IP addresses

To use Skype Meeting Broadcast, the following endpoints need to be accessible to client computers.

Row

Purpose

Source |Credentials

Destination

CDN

ExpressRoute for Office 365

Destination IP

Destination Port

1

Required: For all Skype functionality, the entries are labeled "required".

See Skype for Business Online.

2

Required: Skype Meeting Broadcast presenter

Client computer / logged on user

aka.ms

None

No

N/A

TCP 80 & 443

*.microsoftonline.com

None

Yes

Authentication and Identity IP ranges

TCP 443

3

Required: Skype Meeting Broadcast presenter and attendee

Client computer / logged on user

broadcast.skype.com

*.broadcast.skype.com1

*.infra.lync.com1

browser.pipe.aria.microsoft.com

mlccdn.blob.core.windows.net

None

No

N/A

TCP 443

ajax.aspnetcdn.com

*.msecnd.net2

Verizon

No

N/A

TCP 443

4

Required: Skype Meeting Broadcast attendee

Client computer / logged on user

amp.azure.net

pipe.skype.com

None

No

N/A

TCP 443

*.streaming.mediaservices.windows.net3

*.keydelivery.mediaservices.windows.net3

Azure Media Services

Yes (Azure Public peering)

N/A

TCP 443

1 The wildcard for lync.com and broadcast.skype.com represents a long list of nodes that are exclusively used for Office 365.

2 The wildcard for msecnd.net represents a dynamically generated endpoint within the CDN that join page libraries are pulled from.

3 The wildcard for streaming.mediaservices.windows.net represents a list of media services endpoints where video content is pulled from.

Skype for Business Online IPv4 Addresses for ER available services

Skype for Business Online IPv6 Addresses

13.67.186.105/32
13.67.214.76/32
13.67.222.144/32
13.67.234.27/32
13.75.42.168/32
13.88.183.247/32
13.88.241.210/32
13.89.44.84/32
13.91.40.251/32
13.91.108.91/32
13.92.80.132/32
13.92.136.118/32
13.93.209.18/32
13.94.47.37/32
13.95.233.176/32
13.95.236.192/32
13.107.3.0/24
13.107.3.128/32
13.107.3.129/32
13.107.8.0/24
13.107.8.0/24
13.107.64.0/18
13.107.66.0/24
23.97.72.141/32
23.97.164.28/32
23.99.101.49/32
23.99.115.104/32
23.99.121.255/32
23.99.122.87/32
23.99.124.9/32
23.99.213.58/32
23.101.115.193/32
23.101.116.26/32
23.101.156.198/32
23.101.158.111/32
23.102.17.214/32
23.102.24.114/32
23.103.128.0/23
23.103.130.0/24
23.103.176.128/26
23.103.176.192/27
23.103.178.128/26
23.103.178.192/27
40.68.229.156/32
40.68.230.133/32
40.76.24.32/32
40.76.24.177/32
40.77.16.36/32
40.78.68.158/32
40.78.71.48/32
40.78.145.194/32
40.79.38.101/32
40.79.74.185/32
40.83.176.46/32
40.83.177.162/32
40.86.90.132/32
40.112.188.2/32
40.113.16.205/32
40.114.244.22/32
40.118.251.206/32
52.112.0.0/14
52.163.224.242/32
52.163.231.126/32
52.164.255.104/32
52.165.35.53/32
52.169.30.95/32
52.169.105.194/32
52.169.106.115/32
52.174.166.73/32
52.174.166.107/32
52.174.166.156/32
52.175.38.240/32
52.178.34.159/32
52.178.36.12/32
52.178.36.169/32
52.178.38.115/32
52.178.145.227/32
52.178.148.1/32
52.178.148.152/32
52.178.158.225/32
52.232.129.71/32
52.232.132.60/32
52.232.135.81/32
52.233.29.169/32
52.233.30.121/32
65.55.127.0/24
66.119.157.192/26
66.119.158.0/25
104.40.75.8/32
104.40.76.196/32
104.41.207.112/32
104.41.210.140/32
104.42.229.230/32
104.43.12.164/32
104.44.195.0/24
104.44.195.0/24
104.44.200.0/23
104.44.200.0/24
104.44.201.0/24
104.46.96.162/32
104.46.97.194/32
104.46.101.116/32
104.46.105.95/32
104.208.152.137/32
104.210.1.218/32
111.221.76.128/25
111.221.77.0/26
111.221.101.75/32
111.221.122.192/26
131.253.128.0/19
131.253.160.0/20
132.245.0.0/24
132.245.1.0/25
132.245.112.0/24
132.245.113.0/25
132.245.128.0/24
132.245.129.0/25
134.170.0.0/25
134.170.54.0/26
134.170.54.128/25
134.170.113.192/26
134.170.115.128/25
137.116.132.4/32
137.116.157.126/32
137.116.159.19/32
137.116.159.228/32
157.55.40.128/25
157.55.46.64/26
157.55.232.128/26
157.55.238.0/25
157.56.135.64/26
157.56.185.0/26
168.63.14.15/32
168.63.219.57/32
191.233.80.151/32
191.233.95.169/32
191.234.19.21/32
191.234.20.241/32
191.234.21.145/32
191.234.23.27/32
207.46.5.0/24
207.46.156.136/32
207.46.230.50/32
2603:1027::/48
2603:1037::/48
2603:1047::/48
2603:1057::/48
2620:01ec:0042::/48
2620:1ec:40::/42
2620:1ec:6::/48
2a01:111:2047:2::/64
2a01:111:2047:1::/64
2a01:111:2048:2::/64
2a01:111:2048:1::/64
2a01:111:f406:3406::/64
2a01:111:f406:3405::/64
2a01:111:200f:11::/64
2a01:111:200f:10::/64
2a01:111:2007:3::/64
2a01:111:2007:4::/64
2a01:111:200f:6::/64
2a01:111:200f:7::/64 
2a01:111:200f:8::/64
2a01:111:200f:9::/64
2a01:111:2012:2::/64 
2a01:111:2012:3::/64
2a01:111:2012:4::/64
2a01:111:2012:5::/64
2a01:111:2012:6::/64
2a01:111:2012:7::/64
2a01:111:202a:2::/64
2a01:111:202a:3::/64
2a01:111:202b:3::/64
2a01:111:202b:4::/64
2a01:111:202b:9::/64
2a01:111:202b:a::/64
2a01:111:2034:2::/64
2a01:111:2034:3::/64
2a01:111:2035:6::/64
2a01:111:2035:7::/64
2a01:111:2036:2::/64
2a01:111:2036:3::/64
2a01:111:203e:1::/64
2a01:111:203e:2::/64
2a01:111:2040:1::/64
2a01:111:2040:2::/64
2a01:111:2046:4::/64
2a01:111:2046:5::/64
2a01:111:2a:7::/64
2a01:111:2a:8::/64
2a01:111:f402:5802::/64
2a01:111:f402:5803::/64
2a01:111:f402:5805::/64
2a01:111:f404:0c06::/64
2a01:111:f404:0c07::/64
2a01:111:f404:0c09::/64
2a01:111:f404:0c0a::/64
2a01:111:f404:3400::/64
2a01:111:f404:3401::/64
2a01:111:f404:8002::/64
2a01:111:f404:8003::/64
2a01:111:f404:9400::/64
2a01:111:f404:9401::/64
2a01:111:f404:a000::/64
2a01:111:f404:a001::/64
2a01:111:f404:a800::/64
2a01:111:f404:a801::/64
2a01:111:f404:c0b::/64
2a01:111:f404:c0c::/64
2a01:111:f406:2400::/64
2a01:111:f406:2401::/64
2a01:111:f406:402::/64
2a01:111:f406:403::/64

Set up Skype Meeting Broadcast in Hybrid deployments and organizations

If you have a Skype for Business Online organization and an on-premises deployments of Lync Server 2010, Microsoft Lync Server 2013, and Skype for Business Server 2015 and have users both online and on-premises, there are other set up steps that you will need to do in addition to the ones above to enable your on-premises organization to communicate with Skype for Business Online and allow all of your users to be able to create and join a Skype Meeting Broadcast. To see what those requirements are, see Configure your on-premises deployment for Skype Meeting Broadcast.

See Also

Enable Skype Meeting Broadcast

Office 365 URLs and IP address ranges

Set up Skype for Business Online

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