replyBuffer receives an ICMP_ECHO_REPLY followed by zero or more bytes of reply data for each reply received.

        private struct ICMP_ECHO_REPLY

        private static extern int IcmpSendEcho(IntPtr icmpHandle, int destinationAddress, string requestData, short requestSize, ref ICMP_OPTIONS requestOptions, ref ICMP_ECHO_REPLY replyBuffer, int replySize, int timeout);

            ICMP_ECHO_REPLY icmpReply = new ICMP_ECHO_REPLY();

typedef struct icmp_echo_reply {

} ICMP_ECHO_REPLY,*PICMP_ECHO_REPLY;

    ReplySize = sizeof(ICMP_ECHO_REPLY) + sizeof(SendData);

    PICMP_ECHO_REPLY pEchoReply = (PICMP_ECHO_REPLY)ReplyBuffer;

public struct ICMP_ECHO_REPLY

Structure ICMP_ECHO_REPLY