# Layer 3 Network
Last edited: 2026-02-05
Layer 3 Network
This layer works with nodes identified by an IP addresses . This applies a header to a Segment with the source and destination Internet Protocol (IPv4) . Devices at level 3 are:
Last edited: 2026-02-05
This layer works with nodes identified by an IP addresses . This applies a header to a Segment with the source and destination Internet Protocol (IPv4) . Devices at level 3 are: