Hi, I have a little problem...

I want to put on a firewall (I dont know firewalls, and I dont

know if what I want is possible under linux...)

I need that function:

-To filter a specific IP/Port

- Redirect the corresponding datagrams in a proxy

That is to say, I need to modify the

IP Dest in the header, and to recalculate the CRC...

is it possible?

thank's.