id	summary	reporter	owner	description	type	status	component	version	resolution	keywords	cc	guest	host
4839	NAT corrupts mac addresses leading to packet loss -> Fixed in SVN	egwspiti		"Attached are the output of ""ping www.virtualbox.org"" and  ""tcpdump icmp -s 0 -w icmp.log"" both executed at the guest OS. ping shows a significant packet loss, while tcpdump shows that all the icmp replies were received. however, the dst mac address of the icmp replies was quite random thus leading to packet loss. the current logs are from an INTEL PRO/1000 MT Server (the same happens with the default PCnet-FAST III)

Host OS is winxp sp3, guest OS is linux. In bridged mode there're no corrupted mac addresses / packet loss."	defect	closed	network/NAT	VirtualBox 3.0.4	fixed	nat, mac address corruption		other	Windows