Mac Block - Draytek Vigor3900 User Manual

Item
Block Ping of Death
Block ICMP Fragment
Block Unknown
Protocol
Apply
Cancel
After finished the above settings, click Apply to save the configuration.
4 . 5 . 3 M A C B l o
4 . 5 . 3 M A C B l o
MAC Block allows you to set lots of proprietary MAC Address. Packets will be dropped if
the source or destination MAC Address of packets is matched with these assigned MAC
Addresses. The advantage of MAC Block is that it can filter some unnecessary packets or
attacking packets on LAN network.
Each item will be explained as follows:
Item
Add
Edit
Vigor3900 Series User's Guide
Description
re-construct the packets. The routers will block any packets
resembling this attacking activity.
Click Enable to activate the Block Ping of Death function.
Many machines may crash when receiving an ICMP
datagram that exceeds the maximum length. The router will
block any fragmented ICMP packets with a length greater
than 1024 octets.
Click Enable to activate the Block ICMP fragment function.
Any ICMP packets with fragmented bit sets are dropped.
Click Enable to activate the Block Unknown Protocol
function. The router will block any packets with unknown
protocol types.
Click it to save the configuration.
Click it to discard the settings configured in this page.
c k
c k
Description
Add a new profile.
Modify the selected profile.
To edit a profile, simply select the one you want to modify
and click the Edit button. The edit window will appear for
you to modify the corresponding settings for the selected
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