[Planetlab-users] my problem about ICMP raw sockest.
rxtian at ns.6test.edu.cn
Mon Jun 7 10:46:57 EDT 2004
Sorry to bother you. I have a question about ICMP raw socket.
my souce code is:
recvfd = socket(PF_INET, SOCK_RAW, IPPROTO_ICMP);^M
if(recvfd == -1)^M
printf("Error, cannot establish ICMP receiver socket!\n");^M
sabind.sin_port = htons(sport);
if(bind(recvfd, (struct sockaddr*)&sabind, sizeof(struct sockaddr)) != 0 )^M
and the result is:
bind error. It says that the address is used.
What's the problem and how can I fix it. thanks.
By the way, I've known that a site can show the rtt values between all the Planet-Lab nodes. Where is it? Thanks a lot.
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