The HSCN IP addressing policy outlines how Internet Protocol (IP) addressing is used across the network for HSCN consumers.
Consumers moving from TN have the option of using either minimal Réseaux IP Européens (RIPE) addressing or migrating their existing addressing structure via the Transitional Assistance for Continuing Orders (TACO) process. TACO are a BT Transition Network service provider team. They support consumers migrating from the TN to HSCN.
All new consumers must use minimal RIPE addressing that covers connectivity only.
All consumers must inform the NHS Digital Internet Protocol Address Management (IPAM) team via the HSCN Portal. To do so you will need to request ‘IPAM Delegate’ access under your parent Organisation Data Service (ODS) Code via firstname.lastname@example.org.
Once you have IPAM delegate access you have two choices:
- Migrate circuit: for TN hosted sites, this informs the IPAM Team of what IP addresses the consumer wishes to use or abandon.
- New circuit: for new circuits, this provides minimal RIPE addressing to cover connectivity only, as per the IPAM policy.
In both cases you must provide:
- the supplier name (CN-SP)
- the supplier circuit ID – a unique service code replacing the previous BT N3 Service Identification Number (SIN)
- the date of migration to HSCN
- whether the circuit is a single or resilient link (for new circuits only)
NHS Digital strongly advise you to look at your IP subnet estate well in advance of migration to ensure that all information is up to date and correct. Further information on the HSCN IPAM policy and guidance documents can be found on the HSCN IP address management page.