IPsec is a suite of protocols that interact with one another to provide secure private communications across IP networks. These protocols allow the system to establish and maintain secure tunnels with peer security gateways. IPsec provides confidentiality, data integrity, access control, and data source authentication to IP datagrams.

For more information, refer to the UCC 5G UPF Configuration and Administration Guide > IPsec Support for IPv6 chapter.

IPv6 Dual-Stack Support feature enables the gNodeB to support both IPv4 and IPv6 transport types over the same N3 interface.

This feature also provides IPv6 support on N3, N4, and N6 interfaces. N9 interface is currently not supported.

Outer Header Removal feature is used to remove GPRS Tunnelling Protocol User Plane (GTP-U) header from the uplink GTP-U packets.

For more information, refer to the UCC 5G UPF Configuration and Administration Guide > N4 Interface Compliance with 3GPP Specification chapter.