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How do I turn off Vlan tagging inside a 2950 switch so I can snoop traffic?

I've set up a monitor session from one port to another and all I get are ether type 8100 packets when I snoop. I seem to remember that some of the switches were tagging all packets within the switch, but would strip off the tag before exiting the switch. I think there was a switch OS upgrade to fix that.

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Cisco Employee

Re: How do I turn off Vlan tagging inside a 2950 switch so I can

What IOS version are you running? Take a look at the following bug

http://www.cisco.com/cgi-bin/bugtool/onebug.pl?bugid=CSCdx67634

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