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Code42 Support

TCP and UDP ports used by the Code42 platform

Applies to:
  • Code42 CrashPlan (previously CrashPlan PROe)

Overview

The Code42 server, the CrashPlan app, and other products in your Code42 environment use certain network ports to function normally. If you have network connectivity issues with Code42 CrashPlan, verify that your firewall rules permit traffic over these ports.

Code42 server network ports

Inbound ports

The following table lists the default Code42 server ports. It is best practice to deny inbound traffic at the firewall for any ports not needed by the Code42 configuration.

Port forwarding
You can use port forwarding, also called port mapping, to avoid port conflicts and port restrictions within your Code42 environment and on other networks.
Port(s) Protocol Source Destination Description

4282

4287 (TLS*)

TCP
  • LAN networks
  • Internet

Your Master server

  • Backup traffic from internal and external endpoints
  • Statistics and job status from internal and external endpoints
Your Storage servers Backup traffic from internal and external endpoints
4280 (http)
4285 (https)
TCP
  • LAN networks
  • Internet
Your Code42 server Access for administration console and web restore to internal and external endpoints

* Code42 server version 5.3 introduced TLS encryption; servers listen at both 4282 and 4287. In version 5.4, TLS is enabled by default. See Enabling TLS Messaging.

Outbound ports

Specific ips
For specific IPs, sign in with a privileged account or contact our Customer Champions for Code42 CrashPlan support or CrashPlan for Small Business (previously CrashPlan PRO) support.
Port(s) Protocol Source Destination Description
25 TCP Your Code42 server Mail Server(s) SMTP services
53 UDP Your Code42 server DNS Server(s) DNS services
123 UDP Your Code42 server NTP Server(s) NTP services
443 TCP Your Code42 server code42.com
crashplan.com
Online Code42 licensing services
TCP Your Code42 server code42.com

Managed appliance Upgrades

389 (LDAP)
636 (LDAPS)
TCP Your Master server LDAP or Active Directory Server(s) Integration with LDAP or Active Directory services
1812
1813
UDP Your Code42 server RADIUS Server(s) RADIUS services

Multi-server deployment ports

Port(s) Protocol Source Destination Description

4283

4288 (TLS1)

TCP

Your Code42 server

Your Code42 server Data balancing between Code42 servers2
4286 TCP

Your Code42 server

Your Code42 server Statistics traffic between Code42 servers2

1Code42 server version 5.3 introduced TLS encryption; servers listen at both 4283 and 4288. In version 5.4, TLS is enabled by default. See Enabling TLS Messaging.

2On Windows Code42 servers, this port must be enabled for both Public and Private networks.

CrashPlan app ports

Port(s) Protocol Source Destination Description

4282

4287 (TLS1)

TCP LAN networks Your Code42 server(s) (Default) Communication from the device to Code42 server(s) in private cloud environments
443 TCP LAN networks Code42 cloud Communication from the device to the Code42 cloud
42432 TCP Localhost Localhost (Default) CrashPlan app connecting to CrashPlan service
42422 TCP CrashPlan Device CrashPlan Device (Default) Computer-to-computer backups in Code42 CrashPlan

1,024 - 14500,

49,000 - 52,000

TCP CrashPlan Device

CrashPlan Device

(Optional) NAT traversal ranges used for connecting between computers

1900

2869

UDP

TCP

CrashPlan Device CrashPlan Device (Optional) Standard UPnP ports required for computer-to-computer connections
5351 UDP CrashPlan Device CrashPlan Device (Optional) Standard NAT-PMP port required for computer-to-computer connections

1Code42 server version 5.3 introduced TLS encryption; CrashPlan apps can be configured to listen at both 4282 and 4287. In version 5.4, TLS is enabled by default. See Enabling TLS Messaging.

2The CrashPlan app uses a different pair of available ports if the default ports are in use. The ports in use can be found in the app.log file.

Monitor ports

Only apply firewall rules for monitoring if you use Code42's managed appliance monitoring.

Specific ips
For specific IPs, sign in with a privileged account or contact our Customer Champions for Code42 CrashPlan support or CrashPlan for Small Business support.
Port(s) Protocol Source Destination Description

10053
(Cloud OS only)

TCP Your Code42 server

Code42 Monitoring Address

Remote monitoring (Zabbix)

10051
(Pre-Cloud OS only)

TCP Your Code42 server

Code42 Monitoring Address

Remote monitoring (Zabbix)
22 TCP

Code42 Remote Access IP

Your Code42 server Remote SSH access from Code42 offices
4280
4284
4285
TCP

Code42 Remote Access IP

Your Code42 server Remote console access from Code42 offices
443
623
5900
TCP
UDP
TCP

Code42 Remote Access IP

Your Master server's IPMI Interface Remote IPMI access from Code42 offices
623 TCP Your Master server's IPMI Interface

Code42 Remote Access IP

Remote IPMI access from Code42 offices

Code42 CrashPlan cloud storage ports

Implement firewall rules for the ports listed below, for the destination IP addresses in your geographic region.

Specific ips
For specific IPs, sign in with a privileged account or contact our Customer Champions for Code42 CrashPlan support or CrashPlan for Small Business support.

Port(s)

Protocol

Source

Destination

Description

4282

4287 (TLS*)

TCP

Code42 US Datacenter

Your Master server

Statistics

443 (preferred)
4282 (without TLS*)
4287 (with TLS*)
TCP
  • Your Master server
  • LAN Networks

These port numbers apply to any Code42 Datacenter worldwide: US, Sydney, Dublin, Singapore, Amsterdam.

Cloud services

4285

TCP

  • Your Master server
  • LAN Networks

These port numbers apply to any Code42 Datacenter worldwide: US, Sydney, Dublin, Singapore, Amsterdam.

Web restore function

* Code42 server version 5.3 introduced TLS encryption; CrashPlan apps can be configured to listen at both 4282 and 4287. In version 5.4, TLS is enabled by default. See Enabling TLS Messaging.