- CrashPlan for Home
This article shows the TCP network ports that the CrashPlan app uses to communicate with CrashPlan Central and with your other CrashPlan devices.
Ports used by the CrashPlan app
The CrashPlan app requires the following ports to communicate with your backup destinations. Depending on the destinations you use, you may not require all ports:
|4242*||TCP||CrashPlan device||(Default) Listening port required for computer-to-computer connections
Port can be changed from Settings > General > Inbound backup from other computers
|4243*||TCP||localhost||(Default) Used by the CrashPlan app to connect to the CrashPlan service|
|443||TCP||Code42 cloud||(Required) Used by the CrashPlan app to connect to the Code42 cloud|
1,024 - 14500,
49,000 - 52,000
(Optional) NAT traversal ranges used for connecting between computers
|CrashPlan device||(Optional) Standard UPnP ports required for computer-to-computer connections|
|5351||UDP||CrashPlan device||(Optional) Standard NAT-PMP port required for computer-to-computer connections|
* Depending on your configuration, alternative ports may be used. To find the ports used on your computer, identify the ports used by the CrashPlan app.
The CrashPlan app communicates between multiple computers on one CrashPlan account. If you back up to a friend's computer, your CrashPlan app also communicates with computers on your friend's CrashPlan account. Even if you only back up to CrashPlan Central, your computers communicate to share account settings and reporting information.
The CrashPlan app automatically handles computer-to-computer communications using several types of networking protocols:
If you disable these networking protocols on your computers, you must manually configure port forwarding to allow computer-to-computer backup.