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user199421
Asked: 2011-06-02 18:54:17 +0800 CST

Can't ping host from vmware guest using bridged networking

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Host is Windows 7 Guest is Ubuntu 11.04

Network adapter is wireless

I can ping other computers on the network but not the host. No firewall are involved.

Sniffing the traffic with wireshark it looks like both the host and the guest are using the same MAC address. My guest simply doesn't receive a reply when asking for 192.168.1.101 (the host) My router has no problem giving both of them different IP addresses but maybe duplicate MAC address is the problem?

It seems logical that both will have the same MAC address (from the host point of view) but it strange that there is no work around for this because otherwise I don't see how the host and guess are supposed to communicate.

virtualization networking vmware-player ping

2 Answers

  1. Best Answer

    If wireshark is really showing the same MAC address, then you probably aren't actually using bridged networking, but are instead using NAT (and this makes sense since you can ping out from the Ubuntu machine to other machines on your network). But, assuming you are in fact using Bridged networking:

    To start, I'd suggest some basic troubleshooting to see if there are really no firewalls involved (both Windows and Ubuntu have them on by default, IIRC). From Ubuntu, attempt to ping your windows IP, then immediately do arp -an to see if there is a mac address associated with the corresponding IP. Then do the same from windows, although the arp command to use is just arp -a. If you have arp entries, then things are probably working, but a firewall is probably blocking your packets in windows or Ubuntu (you can double check that the MAC addresses in arp match those that the systems think they have by checking ifconfig in Ubuntu and ipconfig -all in Windows).

    [Edit to answer question in comment]: VMware assigns the virtual machine a unique mac address, which when in bridged mode, is what is seen on the wire. ifconfig in Ubuntu should show you the mac that VMware has assigned (it will probably be 00:50:56:something or 00:0C:29:something).

    Can you paste the output of ipconfig /all and ifconfig -a from Windows and Ubuntu respectively?

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  2. Please turn your guest firewall off and it will be solved.

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