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Commit a353a9f8 authored by kmccormick's avatar kmccormick Committed by Android (Google) Code Review
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Merge "Doc update: clarify guidelines for firewall setup." into jb-mr1.1-docs

parents 5018688b b43fd58a
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@@ -777,10 +777,11 @@ sent. Optional. The default value is <code>false</code>, and must be a JSON bool

<p class="note"><strong>Note:</strong> If your organization has a firewall 
that restricts the traffic to or 
from the Internet, you need to configure it to allow connectivity with GCM. 
from the Internet, you need to configure it to allow connectivity with GCM in order for
your Android devices to receive messages. 
The ports to open are: 5228, 5229, and 5230. GCM typically only uses 5228, but 
it sometimes uses 5229 and 5230. GCM doesn't provide specific IPs, so you should 
allow your server to accept incoming connections from all IP addresses 
allow your firewall to accept incoming connections from all IP addresses 
contained in the IP blocks listed in Google's ASN of 15169.</p>