linux虚拟机udp环回通信实验__include_overruns_255_dropped_packets_

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linux虚拟机udp环回通信实验

来源: 互联网发布时间：2017-04-01

本文导语: 我想在虚拟机linux中做一个udp通信的实验，在虚拟机客户端中发送某一数字A，服务器程序接收到A，就求取阶乘并发回给客户端程序。客户端和服务器都是虚拟机下的linux。虚拟机我选用NAT联网方式。虚拟机的ip：192....

我想在虚拟机linux中做一个udp通信的实验，在虚拟机客户端中发送某一数字A，服务器程序接收到A，就求取阶乘并发回给客户端程序。
客户端和服务器都是虚拟机下的linux。虚拟机我选用NAT联网方式。

虚拟机的ip：192.168.10.140，如下ifconfig

eth0: flags=4163  mtu 1500
        inet 192.168.10.140  netmask 255.255.255.0  broadcast 192.168.10.255
        inet6 fe80::20c:29ff:fe9c:bbb3  prefixlen 64  scopeid 0x20
        ether 00:0c:29:9c:bb:b3  txqueuelen 1000  (Ethernet)
        RX packets 838  bytes 77159 (75.3 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 287  bytes 24226 (23.6 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 19  base 0x2024

lo: flags=73  mtu 16436
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10
        loop  txqueuelen 0  (Local Loopback)
        RX packets 57  bytes 4884 (4.7 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 57  bytes 4884 (4.7 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

virbr0: flags=4099  mtu 1500
        inet 192.168.122.1  netmask 255.255.255.0  broadcast 192.168.122.255
        ether 52:18:bf:00:ed:f9  txqueuelen 0  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0

客户端程序为
#include

#include

#include

#include

#include

#include

#include

#include

main(int argc,char *argv[])

{

int n,nSend,len;

int nSocket;

long IResult;

struct sockaddr_in sin;

if(argc != 2)

{

fprintf(stderr,"Usage:%s numbern",argv[0]);

exit(0);

}

nSend = atoi(argv[1]);

if((nSocket = socket(PF_INET,SOCK_DGRAM,0))