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Cisco Bug: CSCsz49777 - spa509G: should not accept DHCP response without voice vlan tag

Last Modified

Sep 17, 2010

Products (1)

  • Cisco Small Business SPA500 Series IP Phones

Known Affected Releases

6.1.6(5021754) 7.1.3b

Description (partial)

Phone accepts DHCP response without voice VLAN tag and uses an IP address
belonging to a different VLAN.

Enable CDP on the phone. If CDP reply from switch has voice VLAN, the phone
should ignore DHCP response without voice VLAN tag.
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  • Status
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