There are some ways to coax a retransmission (duplicate acking, maybe selective ... | Hacker News

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toast0 on July 11, 2015 | parent | context | favorite | on: The little ssh that sometimes couldn't (2012)

There are some ways to coax a retransmission (duplicate acking, maybe selective ack?); but retransmissions doesn't really help, since a given socket was always running through the same route, and getting corrupted. I guess an explicit 'got bad data' message would have shown up better in tcpdump though.

derefr on July 11, 2015 [–]

Sounds like a session-layer/presentation-layer sort of thing. TLS or IPSec might have such a protocol message.

gpvos on July 12, 2015 | [–]

Because the TCP checksum was incorrect, the packet would never reach a higher level such as TLS. TCP or ICMP would be the only options; maybe IPsec.

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