﻿id	summary	reporter	owner	description	type	status	component	version	resolution	keywords	cc	guest	host
13899	"""VboxNetNat.exe"" Random crashes -> fixed in 6.0.4"	qidizi		"host OS:window 7;
host some software:avast!;
noteBook:lenovo k27,intel I3,RAM 8G,ssd 128G;
host network:LAN,or LAN wifi;
guest OS:centos 7;
guest network:NAT network,forwarding port(tcp127.0.0.1:22 => 10.0.2.5:22,tcp127.0.0.1:80=>10.0.2.5:80;tcp127.0.0.1:3306 => 10.0.2.5:3306),interface:Intel Pro/1000 MT server (82545EM) mixed mode is disabled;
vm virtualbox VER:4.3.23-98520/4.3.22(test both )

when testing,only this guest OS is runing!
my email is :qidizi&qq.com
If you are using a NAT(not NAT network), this problem will become more serious, see the following https://www.centos.org/forums/viewtopic.php?f=50&t=51112
If you use the ""bridging model"", this problem would not have arisen;
Possible causes:postfix(http://www.postfix.org,Install on CentOS systems) is runing,and A large number of mail is being delivered;and the browser on the host(window on ""k27""), constantly refresh a PHP page,the ""nginx/php"" on Centos;then ""VboxNetNat.exe"" Random crashes,But I cannot determine what operation caused crash;




"	defect	closed	network/NAT	VirtualBox 4.3.22	fixed	NAT	TechSalesDude	Linux	Windows
