Installation manual

Vigor3300 Series Quick Start Guide
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The Access Control can prevent viruses from using ICMP packets to attack the device. You can
disable the ping from the LAN/WAN side when there are worm-type viruses detected on your
network. The mechanism can avoid virus spread, but in most cases it should not be enabled
because its activation may make the device block normal query packets. You can allow or reject
the management from WAN interface in this function by your selection.
1. Go to System page and choose Access Control.
2. Select Disable for Allow Management from the WAN.