Hi Ibrahim, On 6/24/19 9:55 AM, İbrahim Ercan wrote: > On Fri, Jun 21, 2019 at 2:10 PM Florian Westphal <fw@xxxxxxxxx> wrote: >> >> Yes, something like this is needed, i.e. we need to pass two >> mss values -- one from info->mss ("server") that we need to >> place in the tcp options sent to client and one containing >> the clients mss that we should encode into the cookie. >> >> I think you can pass "u16 client_mssinfo" instead of u16* pointer. > > Hi Florian. > > We tested fixed code on real environment and we are still getting some > errors. We have a customer using syn proxy in front of a point of sale > (POS) application and they reported that about %0.4 of connections are > erroneous. > When I examine traffic from pcap file, I saw connections opens > successfully but somehow something goes wrong after then. > If we deactivates syn proxy, problem goes away. So we are sure it is > caused by syn proxy. > How can I debug syn proxy further? Do you have any suggestion? > > Regards. > I am working on synproxy right now, I am going to test it in different environments and debug it. Please let me know if you have any recommended environment on mind. Thanks, Fernando.