Question about the NS_FORWARD flag and transparent mode

[Thom2503]

Hello,

I'm working on a project to improve the performance of a proxy server (on Linux), and I'm using Netmap to achieve better performance. But I'm running into an issue about the way that the NS_FORWARD flag works. There are packets that I'm still receiving even though they're filtered out. I saw this issue #650 but they closed it without any additional info. They said something about comment but I can't find what they mean, and I have checked the man page and the source code.

Can someone help me understand it better on how it works? Thanks!