Hi Mohsin, It will be good if you post your latest code here which includes all of the earlier suggestions.
Thanks, Rahul On Fri, Apr 17, 2015 at 2:31 PM, Mohsin <[email protected]> wrote: > Rahul Gundecha-2 wrote > > Hi Mohsin, > > > > I have http server working simultaneously on both IPv4 and IPv6 sockets. > > Here are my suggestions in your code: > > 1. Why you are using same "iStatus" for both socket descriptors? > > 2. Same question for "sin". For IPv4, you need to use struct sockaddr_in, > > whereas for IPv6 struct sockaddr_in6 variable, so two different > variables. > > 3. iStatus = socket( AF_INET, SOCK_STREAM, 0 ); => 0 should be replaced > by > > IPPROTO_TCP which is 6 > > Thank you Rahul for your suggestions. > I've already tried changing socket descriptor variables as well as sock > struct variables for IPv4 and IPv6 as you suggested above, but none works. > > Actually, I first bind IPv4 ANY address and then IPv6 ANY address to same > port=80 in two different tasks. So in this case, IPv4 is atleast sending > SYN+ACK for first TCP SYN request from PC and then RST,ACK whereas IPv6 > immediately sends RST,ACK for every TCP req. > > If I reverse the sequence of bind. i.e. IPv6 ANY address first and then > IPv4 > ANY address, then IPv6 is able to send SYN+ACK reply to first TCP SYN > request whereas IPv4 immediately sends RST,ACK for every SYN req. > > Hence, I think there happens some conflict in binding of two diff protocols > to same port so that whichever is binded first is able to send atleast one > SYN+ACK instead of directly RST. > > > Regards, > Mohsin > > > > -- > View this message in context: > http://lwip.100.n7.nabble.com/How-to-have-two-different-sockets-for-IPv4-and-IPv6-tp24291p24320.html > Sent from the lwip-users mailing list archive at Nabble.com. > > _______________________________________________ > lwip-users mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/lwip-users >
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