A network administrator is establishing Layer 3 connectivity between Layer 2 segments. Which of the following does the administrator need to complete this task?

A Virtual IP (VIP) is typically used in high availability scenarios, allowing multiple devices to share a single IP address for redundancy. While VIPs can contribute to network reliability, they do not directly facilitate Layer 3 connectivity between Layer 2 segments; this is primarily the role of SVIs.

Network Address Translation (NAT) is employed to modify IP address information in packet headers while in transit, primarily for the purpose of conserving IP addresses or providing security. However, NAT does not establish Layer 3 connectivity between Layer 2 segments; it operates on already established connections and is not a mechanism for inter-VLAN routing.

802.1Q tagging is a protocol used to identify VLANs on Ethernet frames, allowing multiple VLANs to coexist on a single physical link. While it is essential for VLAN segmentation, it does not provide the Layer 3 functionality needed for routing between Layer 2 segments. 802.1Q is more about frame identification than establishing Layer 3 connectivity.