Using iMessage Through a Firewall

When you are using a firewall you are going to see an extra amount of security, both for your computer and the mobile devices you will be using with it.  Since many people now have limits on their iPhone and iPad’s mobile data use, using Wi-Fi is the primary way you are going to be utilizing the Internet.  When you have your firewall up over your Wi-Fi network then you are going to help protect your content even further, but it is going to present a problem for connectivity.  Here is a look at how you can use the Internet service iMessages on your iPhone or iPad when you are protecting your wireless network with a firewall.

First, you have to make sure that specific ports are enabled so that your information can pass through.  These ports are pathways that certain applications use to connect to the Internet, so you will need to ensure that these are open and enabled.  If you are trying to use iMessage over a secure system you need open the following ports:


  • 80 (TCP)
  • 443 (TCP)
  • 5223 (TCP)


These ports are not just specific to iMessage, and you will find that they need to be open for other applications as well.  If you are using video through iMessage then there could be a need to open up further ports, though this will also depend on the NAT configuration that is set for both your network and your router.


You do, however, have the option to actually turn off iMessage when behind a secure connection if this makes it easier, especially if you do not have direct contact with the network administrator.  This would open up regular SMS and MMS text messaging, but it would require a solid cellular connection rather than Internet connection and would post to your account, where you may have limited text messages allowed.

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