Recommendation ITU-T H.248.56 defines H.248 packages for virtual private network (VPN) support and focuses on Ethernet-based virtual local area networks, representing a network‑based layer 2 VPN type.

Corrigendum 1 provides the following clarifications for the VLAN package version 1:

value range '0 to 4095' of property VLAN tags used for VLAN tagging;

value '4096' of property VLAN tags defines the semantic for "no VLAN tagging"; and

default values for the two package properties may be defined via configuration management.