Title: WIRELESS-LAN Digest - 22 Jun 2004 to 23 Jun 2004 (#2004-64)
VLAN Spanning
This condition is caused in Windows XP whenever
you add a network card (such as a wireless PCI card) and go through the network
wizard. In this case, by default, Microsoft decides to bridge the two network
A simple explanation is that Windows XP is turning your PC/laptop into a
glorified router. If you would like a more detailed explanation, below
are two decent links that describe XP software bridging, how to set it
up etc:
http://www.wown.com/j_helmig/wxpbrdge.htm
http://www.homenethelp.com/web/h
On Wed, 23 Jun 2004 10:19:02 -0500
Michael Griego <[EMAIL PROTECTED]> wrote:
> The MAC Miniport Bridge adapter on XP can be enabled quite easily by
> accident. It is *not* enabled by default. A user can enable it by
> right-clicking on a physical adapter in the Network Connections folder
> and c
At the risk of sounding stupid here, could someone explain to me what XP
bridging does exactly. I've seen this problem before, and figured out
that the bridge was causing it, but never quite understood why it was
messing things up.
Regards,
Eric Barnett, CCNA
Wireless Administrator
Information a
If the XP machine in question is on a Cisco switch you might try turning
on BPDU-Guard/BPDU-Filter. This should disable the port that the laptop
is physically plugged into provided spanning-tree portfast is turned on
for that port. Delete the bridge and then re-enable the port and they
should be
The MAC Miniport Bridge adapter on XP can be enabled quite easily by
accident. It is *not* enabled by default. A user can enable it by
right-clicking on a physical adapter in the Network Connections folder
and choosing "Bridge Connections". It is also quite easy to enable it
by accident in the W
> Thanks for this!
>
> We are needing to pursue this same setup for similar reasons. Can you
> tell me whether the "XP bridging adapter" is on by default, or is this
> something that people turn on to "share their internet connection with
> another computer"? What is your policy once you find
Thanks for this!
We are needing to pursue this same setup for similar reasons. Can you tell
me whether the "XP bridging adapter" is on by default, or is this something
that people turn on to "share their internet connection with another
computer"? What is your policy once you find the offending
We have had similar issues but without HSRP.
Layer 3 Cisco 6500 have a nice "feature":
all interfaces on the L3 part of the 6500 have the same gateway MAC
address.
So, when a user enables bridging between wired and wireless
(mostly with XP machines!!!)
there is a race condition for the MAC address
