Knowledge Base

Ports used by Plan B technologies

The following information was sent from Plan B on the 12 Dec 2015 in response to a request for information from Cloud Direct.

Note:
Further information concerning Plan B products may be obtained by visiting their website at www.planb.co.uk, by email at support@planb.co.uk, or by phone on 08448 707 999.

 

Plan B Data Flows

In order for a Plan B Disaster Recovery service to work properly, the following connections must be possible:

Outbound from the Appliance to Plan B Systems

The Appliance will initiate outbound connections to the following:

  • TCP Ports 443 and 444 to:
    • 46.235.170.1 - 46.235.170.48 (Used to replicate data)
    • 46.249.220.1 - 46.249.220.64 (Used to replicate data)
    • 86.188.250.229 (fallback IP address)
  • UDP Port 123 (NTP) for time synchronisation. Attached to 'uk.pool.ntp.org'. This is not vital but, without it, the time on the Appliance will slowly drift.
  • TCP Port 80 to Plan B Software Package Repositories. These are currently:
    • repository.planbdr.co.uk (46.249.220.20)
    • betarepository.planbdr.co.uk (46.249.220.21)

Connections from Plan B Appliances to Protected Hosts

  • TCP Port 12346 (this is the port that the Plan B Backup Agent listens on).
  • Multicast DNS (also known as 'Zeroconf'). This is used for agent discovery - it's not fatal if this isn't possible.