[Bug 1095139] [NEW] cannot browse *.microsoft.com in Windows guests with bridged networking

[Jim Salter]

Public bug reported:

In a machine with Ubuntu Precise 12.04.1-LTS as the host and Windows 7
Pro x64 as the guest, if the guest uses /dev/br0, I can browse any site
I can think of EXCEPT any microsoft.com site fine in the guest - but any
*.microsoft.com will hang indefinitely, in any browser.  The host, which
also uses br0 as its only interface, can browse these sites fine (which
is why I'm not filing this bug against bridge-utils).

If I change the guest to use a virtual subnet instead, it will browse to
the microsoft.com sites fine.

The bug persists whether using the rtl8139, e1000, or virtio NIC drivers
on the guest.  It's only affected by bridged vs virtual networking.

** Affects: kvm (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1095139

Title:
  cannot browse *.microsoft.com in Windows guests with bridged
  networking

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