Hamachi:Firewall:General

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Since Hamachi uses UDP traffic to create the peer to peer tunnels, some environments may be difficult to get Hamachi connected between peers.

In cases where you are in a very restricted environment, having UDP 17771 Outbound allowed on the firewall will allow the machines inside the firewall to get a relayed connection to the mediation server (and thus peers).

Since UDP is locally a random protocol controlled by the operating system, the only other way to allow only a single port for the direct peer to peer connectivity is to set a static port on the other peer(s) and allow that port outbound on the firewall.

Note: This article was written for the Hamachi 1.x version. Some features and functionality may be different, missing, or using different steps in Hamachi version 2.x . If you wish to update this article to cover Hamachi2, change the {{{c-hamachi}}} tag to {{{c-hamachi2}}} after your edits.

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