We have a metropolitan Ethernet-access working with one DCHP server who centrally manage the IP address assignments for a large number of subscribers. When some one put another DHCP server on the same ethernet with free leasing, the other subscribers gets the IP from the second DHCP server. To solve this; we've to find that DHCP server and denny to send dhcp messages for that segment. How can i prevent this problem ? Using DHCP Snooping we fix that kind of problem ? We've Catalyst 2950 like access layer in the metropolitan ethernet-acces.
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