Hello, I'm using lwip 1.4 with nios. My device connected to router lan port, pc client connected to wan port. On the router set up port forwarding, it works on 1.4 lwip I can get tcp connection. When I upgrade to 2.0.1, lwip recieve packet send answer, but pc do'sent receive answer. Lwipopts and code identical, what am I doing wrong? If I connected pc to device,directly without a router, everything work fine.
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