Hello,

I am testing with a tcp client from 9front. When the tcp server
(someone else) sends a SYN ACK with a window size lesser than what we
sent in the SYN and without a scale, we are using a much lesser window
size in the ACK.

tcp Client: SYN window size = 65536, scale = 4
tcp server: SYN ACK window size = 8190, no scale
our response: ACK window size = 4095, no scale

Shouldn't our ACK use atleast 8190?

I am attaching the wireshark .pcap file with the relevant packets.

Hope it helps.

Thanks