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<p class=MsoNormal><font size=4 face="Times New Roman"><span DEFANGED_style="font-size:
14.0pt">Hi All,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=4 face="Times New Roman"><span DEFANGED_style="font-size:
14.0pt"><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=4 face="Times New Roman"><span DEFANGED_style="font-size:
14.0pt">Very sorry for posting my question again, because I want to tell you
more details on my issue, and it is very important for us!<o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt">Now I am having
trouble in Ethernet bridge and 802.1Q VLAN, I have the following network:<o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt"><span
DEFANGED_style="mso-spacerun:yes"> </span>Internet<o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt"><span
DEFANGED_style="mso-spacerun:yes"> </span>|<o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt"><span
DEFANGED_style="mso-spacerun:yes"> </span>Gateway ( One UPNP device)<o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt"><span
DEFANGED_style="mso-spacerun:yes"> </span><span
DEFANGED_style="mso-spacerun:yes"> </span>|<o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt"><span
DEFANGED_style="mso-spacerun:yes"> </span>|<span
DEFANGED_style="mso-spacerun:yes"> </span><<span class=GramE>---------<span
DEFANGED_style="mso-spacerun:yes"> </span>If</span> insert one Ethernet bridge box
in here , <span class=SpellE>somethings</span> changes<o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt"><span
DEFANGED_style="mso-spacerun:yes"> </span>|<o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt"><span
DEFANGED_style="mso-spacerun:yes"> </span>H u b<span
DEFANGED_style="mso-spacerun:yes"> </span><span class=GramE>( one</span>
normal hub or switch , no VLAN settings)<o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt"><span
DEFANGED_style="mso-spacerun:yes"> </span>|<span
DEFANGED_style="mso-spacerun:yes"> </span>\<o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt"><span
DEFANGED_style="mso-spacerun:yes"> </span>|<span
DEFANGED_style="mso-spacerun:yes"> </span>\<o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt"><span
DEFANGED_style="mso-spacerun:yes"> </span>D-<span class=GramE>Link<span
DEFANGED_style="mso-spacerun:yes"> </span>802.1Q</span> VLAN Switches (their
uplink port—port 1<span DEFANGED_style="mso-spacerun:yes"> </span>connected
to the upper hub are tagged, those ports connected with PCs are untagged).<o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt">Our client PCs
connect to these VLAN Switches, they access Internet through that UPNP gateway,
It works all OK; Every PC connects to one untagged port in a 802.1Q VLAN Switch
, this untagged port and the tagged<span DEFANGED_style="mso-spacerun:yes">
</span>uplink port (e.g. port 1) make up of one VLAN,<span
DEFANGED_style="mso-spacerun:yes"> </span>the tagged port 1 is a common uplink
port , So from the gateway we can see these VLAN ID of PCs;<span
DEFANGED_style="mso-spacerun:yes"> </span>but when I insert one Ethernet bridge
box ( one <span class=SpellE>linux</span> box, kernel 2.4.26, ebtables-brnf-6_vs_2.4.26
patch) between the gateway and the Hub, <span class=SpellE>somethings</span>
changed:</span></font><span class=MsoHyperlink><u><font size=4 color="#990099"><span
DEFANGED_style="font-size:14.0pt;color:#990099;mso-ansi-language:EN"> </span></font></u></span><span
class=MsoHyperlink><u><font color="#990099"><span lang="EN" DEFANGED_style="color:#990099;
mso-ansi-language:EN"><o:p></o:p></span></font></u></span></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt">I was not able to <span
class=GramE>log<span DEFANGED_style="mso-spacerun:yes"> </span>in</span> hotmail,
maybe also on certain websites. </span></font><o:p></o:p></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt">For example, I <span
class=GramE>access<span DEFANGED_style="mso-spacerun:yes"> </span></span><a
href="http://www.hotmail.com/">www.hotmail.com</a>, it loads OK. When I input
my account, and hit Login, it goes to a error <span class=GramE>page(</span>DNS
error or server not found)<span DEFANGED_style="mso-spacerun:yes"> </span>after a
moment.<o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt">Except the above
site, maybe also have others, but most sites work fine, very strange!<o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt">I am sure that
this Linux Ethernet bridge is <span class=GramE>only<span
DEFANGED_style="mso-spacerun:yes"> </span>transparent</span> bridge, no any <span
class=SpellE>Iptables</span> filter and rule. <o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt">If I have no this
Ethernet bridge, it works fine, no hotmail login error.<o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt">If I remove the
tag for <span class=GramE>VLAN(</span>just change the port 1 to untagged),<span
DEFANGED_style="mso-spacerun:yes"> </span>also with this Linux Ethernet bridge it
works all OK, also have no hotmail login error. Very strange, it as if the
issue is on <span class=GramE>VLAN ,</span> tag, or Linux Ethernet<span
DEFANGED_style="mso-spacerun:yes"> </span>bridge , I have no idea of it now!<o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt">I am stuck here
now! <o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt">Any help,
comments, hints would be greatly appreciated!<o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt">If you need more
info on it, please let me know soon!<o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt">Thanks!<o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><font
size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt">Note: The UPNP box
can act as a universal gateway for these PCs under it, no matter what their IP
are, maybe a dynamic IP, or any fixed IP.<o:p></o:p></span></font></p>
<p class="MsoNormal" DEFANGED_style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
class=SpellE><font size=4 face="Times New Roman"><span DEFANGED_style="font-size:14.0pt">Kingz</span></font></span><font
size=4><span DEFANGED_style="font-size:14.0pt"><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=4 face="Times New Roman"><span DEFANGED_style="font-size:
14.0pt"><o:p> </o:p></span></font></p>
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