UDP 3456
Synopsis
- UDP port 3456 is registered for VAT (Visual Audio Tool), an MBone-era real-time audio conferencing application; VAT used 3456/UDP as its default data channel and 3457/UDP for control.
- This was seen in real-world academic and research network deployments of MBone tools, though it’s largely legacy today.
- No widely adopted modern software is known to commonly use UDP 3456.
Observed activity
Last 30 days
Detailed chart