@davesomebody @SwiftOnSecurity Back when I had DSL I was trying to figure out Linux networking hacks to intentionally make not just 2 but 5+ copies of each outgoing packet to ensure they got thru, since the DSL/ATM layers had no way to notify of lost packets or retransmit and no way to force more conservative handshake in upstream direction, and packet loss was over 75%. 🤬 Never found it tho.