The disclosed computer-implemented method for verifying the functionality of network paths may include (1) constructing, at a source node within a network, a test packet that uniquely identifies a network path whose functionality is unverified, (2) sending the test packet to a target node within the network via the network path in an attempt to verify the functionality of the network path, (3) receiving, back from the target node, the test packet sent to the target node via the network path, and then (4) verifying, at the source node, the functionality of the network path based at least in part on the test packet received back from the target node. Various other methods, systems, and computer-readable media are also disclosed.