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After the user configure ip-mac banding, unable to access to the internet.

Publication Date:  2012-11-02 Views:  47 Downloads:  0
Issue Description
All the hosts configured IP - MAC binding by the user can’t access to the Internet, after cancel the binding, problem disappeared.
Alarm Information
none
Handling Process
Check the user configuration, find that the user enabled the sub-interface under interface, and encapsulated the corresponding vlan. But IP - MAC binding configuration did not add vid parameter, so cause the impassability.
After modify the user IP - MAC binding configuration and add vid parameter, test again and it becomed normal.
Root Cause
The user configuration is improper
Suggestions
When configure IP - MAC binding, for the following two kinds of circumstance, must configure vid parameter, and relating the corresponding VLAN:
through the VLANIF make SW port at the route port, used for forwarding the VLAN message.
In the route port establish sub-interface, and through the vlan - type dot1q command specifying the vlan belong to sub-interface, used for forwarding the vlan message.

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