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 Post subject: BUG #### Ethernet Switch learns wrong MAC Address######
PostPosted: Mon Dec 26, 2011 5:33 pm 
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Joined: Sun Dec 25, 2011 11:07 am
Posts: 6
I observered that when we connect cloud to a router through a ethernet switch it doesn't work as the switch starts learning the wrong mac address.

Please provide the workaround for this.




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 Post subject: Re: BUG #### Ethernet Switch learns wrong MAC Address######
PostPosted: Tue Dec 27, 2011 2:48 pm 
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Joined: Fri Mar 11, 2011 7:39 pm
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Location: Israel
draw topology and post here.


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 Post subject: Re: BUG #### Ethernet Switch learns wrong MAC Address######
PostPosted: Tue Dec 27, 2011 4:19 pm 
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Joined: Sun Dec 25, 2011 11:07 am
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Topology is attached for your reference.


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 Post subject: Re: BUG #### Ethernet Switch learns wrong MAC Address######
PostPosted: Mon Jan 02, 2012 10:06 am 
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Joined: Sun Dec 25, 2011 11:07 am
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When I use a Ethernet Switch, mac address table gets populated with MAC address and wrong ports. I tried clearing the table however same thing is happening again and again.

Does anyone has the solution for this problem?


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 Post subject: Re: BUG #### Ethernet Switch learns wrong MAC Address######
PostPosted: Fri Jan 13, 2012 7:33 am 
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Joined: Sat Oct 11, 2008 1:41 pm
Posts: 2668
Location: Canada
Hi,

I don't see what's wrong with your topology. Please, can you give me a complete and reproducible example for how to get your issue?

Also, are you on Windows?

I did a quick test and every was fine. (see screenshot).

Thanks,


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ETHSW_MAC_ADDR_TEST.png
ETHSW_MAC_ADDR_TEST.png [ 153.73 KiB | Viewed 3892 times ]

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Jeremy, GNS3 Programmer & Benevolent Dictator for Life.
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 Post subject: Re: BUG #### Ethernet Switch learns wrong MAC Address######
PostPosted: Fri Jan 13, 2012 12:24 pm 
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Joined: Sun Dec 25, 2011 11:07 am
Posts: 6
Hi,

Thanks for the response. In my case switch is learning all the mac on a single port. Snapshot for the same in enclosed. I have seen few other facing the similar problem. Issue seems to be only with the switch as if we connect the router directly to the cloud it works perfectly fine.

Regards,
Jorbe


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 Post subject: Re: BUG #### Ethernet Switch learns wrong MAC Address######
PostPosted: Sat Jan 14, 2012 12:35 am 
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Joined: Sat Oct 11, 2008 1:41 pm
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Location: Canada
Quote:
Hi,

Thanks for the response. In my case switch is learning all the mac on a single port. Snapshot for the same in enclosed. I have seen few other facing the similar problem. Issue seems to be only with the switch as if we connect the router directly to the cloud it works perfectly fine.

Regards,
Jorbe


I tested with a Loopback interface and physical interface, both with IP addresses configured. I could ping between the routers and the interface, I tried everything but no issue. To what interface do you bind the virtual switch, what is the model of your NIC?

Maybe you can capture on your NIC using Wireshark to see what really going on ... I cannot fix anything if I cannot get the issue myself.

Thanks,

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Jeremy, GNS3 Programmer & Benevolent Dictator for Life.


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 Post subject: Re: BUG #### Ethernet Switch learns wrong MAC Address######
PostPosted: Wed Jul 04, 2012 6:40 pm 
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Joined: Wed Jul 04, 2012 6:35 pm
Posts: 1
I am also facing the same problem. Does anybody have solution to this problem?


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 Post subject: Re: BUG #### Ethernet Switch learns wrong MAC Address######
PostPosted: Fri Nov 23, 2012 6:27 pm 
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Joined: Fri Nov 23, 2012 6:24 pm
Posts: 1
I did some testing and found that the issue only happens in Windows 7. When I use the same set up in Windows XP, it works as it's supposed to.




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