When a users connects to the network and the terminal requests IP address to DHCP server, DHCP binding registers ok, the user receives an IP address and it receives Internet access. However when a user has static IP address, the switch fails to give internet access to terminal PC, even though static IP/MAC is
configured.
Override dhcp snooping with static user-bind table
Created: Apr 1, 2017 11:27:35Latest reply: Apr 1, 2017 14:21:35
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The interface configuration is below: interface GigabitEthernet0/0/1 The problem arises when manually assign an IP and a MAC to the port with static user-bind. As long as the terminal sends a DHCP request and receives an IP through it, everything works well. However when manually IP/MAC is configured by adding an IP in the static binding table, it doesn’t work. user-bind static ip-address XX.XX.XX.X mac-address aaaa-aaaa-aaaa interface GigabitEthernet 0/0/1 --------------------------------------------------------------------------------  Root CauseWhen static user binding is used there is the need to configure static-gateway in vlan view. SolutionConfigure “mac-forced-forward static-gateway xx.xx.xx.xx”. When static user bind is used this command is mandatory. |
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