3 ms·
The problem is plenty of boxes (esp. consumer-grade NAT stuff!) drops any IP packet that is not TCP or UDP, hence introducing anything at that layer is as hard
by gsnedders 13y ago
The problem is plenty of boxes (esp. consumer-grade NAT stuff!) drops any IP packet that is not TCP or UDP, hence introducing anything at that layer is as hard as introducing IPv6 (i.e., it might happen, eventually, maybe). This is why Google's QUIC is layered on top of UDP — as UDP is a thin enough layer (on top of IP) it doesn't add too much bloat.