Manual
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34.3.2 DHCP Snooping Troubleshooting Help 
If  there  is  any  problem  happens  when  using  DHCP Snooping  function,  please  check  if  the 
problem is caused by the following reasons: 
   Check that whether the global DHCP Snooping is enabled; 
   If the port does not react to invalid DHCP Server packets, please check that whether 
the port is set as a non-trusted port of DHCP Snooping. 










