Advanced Settings For Transparent Mode - D-Link NetDefend DFL-210 User Manual

4.7.5. Advanced Settings for
Transparent Mode
• Multiple Spanning Tree Protocol (MSTP)
• Cisco proprietary PVST+ Protocol (Per VLAN Spanning Tree Plus)
NetDefendOS checks the contents of BDPU messages to make sure the content type is supported. If
it is not, the frame is dropped.
Enabling/Disabling BPDU Relaying
BPDU relaying is disabled by default and can be controlled through the advanced setting Relay
Spanning-tree BPDUs. Logging of BPDU messages can also be controlled through this setting.
When enabled, all incoming STP, RSTP and MSTP BPDU messages are relayed to all transparent
interfaces in the same routing table, except the incoming interface.

4.7.5. Advanced Settings for Transparent Mode

CAM To L3 Cache Dest Learning
Enable this if the firewall should be able to learn the destination for hosts by combining destination
address information and information found in the CAM table.
Default: Enabled
Decrement TTL
Enable this if the TTL should be decremented each time a packet traverses the firewall in
Transparent Mode.
Default: Disabled
Dynamic CAM Size
This setting can be used to manually configure the size of the CAM table. Normally Dynamic is the
preferred value to use.
Default: Dynamic
CAM Size
If the Dynamic CAM Size setting is not enabled then this is the maximum number of entries in each
CAM table.
Default: 8192
Dynamic L3C Size
Allocate the L3 Cache Size value dynamically.
Default: Enabled
L3 Cache Size
This setting is used to manually configure the size of the Layer 3 Cache. Enabling Dynamic L3C
Size is normally preferred.
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Chapter 4. Routing