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Doc update: clarify guidelines for firewall setup.

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Change-Id: Id3284bb21a0a2b612babf6cf582fda8f1c73cb80
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kmccormick
2013-03-29 15:21:12 -07:00
parent 689e827aa3
commit b43fd58a10
1 changed files with 3 additions and 2 deletions
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docs/html/google/gcm/gcm.jd
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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>