Can you see the packet coming-in through tcpdump ( tcpdump -n -i eth0 udp). If the packet is coming-in..i would then check (netstat -s | more) and see if under udp if it says " X#of packet receive errors". what i am trying to say is..u could get this error bcoz the sender is screwing-up with the packet(like computing the checksum incorrectly).. U can try my programs http://www.cs.pdx.edu/~sashi/codeSnippets/sendOneUdp.c http://www.cs.pdx.edu/~sashi/codeSnippets/udpserver.c -Sashi. On Thu, 5 Dec 2002, Marcos Fereyra wrote: > Hello everybody, > I am running my first networking programms and I have an error I don't > understand. I open a UDP socket but when I do a recvfrom it returns -1 > and strerror(errno) displays "Resource temporarily unavailable". I > havent changed the default blocking/non-blocking policy and I thought it > would just stay waiting until some data arrived to the socket. > > Do tou know what is my problem? > > Thank you in advence > Marcos > - > : send the line "unsubscribe linux-net" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
