This read-write action object adds a permanent database entry that filters packets entering port 1 destined for the specified address while forwarding packets entering port 2 to port 1 for that address. An admin sets this up as a durable, one-directional exception to normal bridging behavior that will remain in place even after events that might clear dynamically learned entries. For example, an admin permanently allowing a monitoring station on port 2's segment to reach a specific device via port 1, but blocking the reverse path, would use permCreate01.