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linux fping

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fpingÈ´ÄÜÒÔÂÖת·½Ê½²¢Ðеط¢³ö´óÁ¿µÄpingÇëÇó£»
sudo apt-get install fping
-a: ±íʾֻÔÚÊä³ö±¨¸æÀïÁгöµ±Ç°ÕýÔÚÔËÐеÄϵͳ¡£
-d:½âÎöÖ÷»úÃû¡£
-f£º¶ÁÈëÎļþ¡£
-g: ·¶Î§¡£
Àý×ÓÈçÏ£º
$cat  a
192.168.1.1
192.168.1.2
192.168.1.3
......
192.168.1.39
$fping -f -a a
192.168.1.1 is alive
192.168.1.2 is unreachable
192.168.1.3 is unreachable
192.168.1.4 is unreachable
192.168.1.5 is unreachable
192.168.1.6 is unreachable
$fping -g  192.168.1.1  192.168.1.255


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LinuxÍøÂçÇý¶¯³ÌÐò±àд(Ò»)
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linux ÖеÃ×Ô¼ºµÄipµØÖ·´úÂë

DWORD GetLocalAddr(char* interface)
{
 struct ifreq ifr;
    int fd;
    int err;
    unsigned long ip;
    strcpy(ifr.ifr_name, interface);
    fd = socket(AF_INET, SOCK_DGRAM, 0);
    err = ioctl ......
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