
xStack
®
DES-3810 Series Layer 3 Managed Ethernet Switch Web UI Reference Guide
307
Enabled (Strict)
- This mode provides a stricter method of control. If the user selects this
mode, all packets will be sent to the CPU, thus all packets will not be forwarded by the
hardware until the S/W learns the entries for the ports. The port will check ARP packets
and IP packets by IP-MAC-port binding entries. When the packet is found by the entry,
the MAC address will be set to dynamic state. If the packet is not found by the entry, the
MAC address will be set to block. Other packets will be dropped. The default mode is
strict if not specified. The ports with strict mode will capture unicast DHCP packets
through the ACL module. If configuring IP-MAC-port binding in strict mode when IP-MAC-
port binding DHCP snooping is enabled, it will create an ACL profile and the rules
according to the ports. If there is not enough profile or rule space for an ACL profile or rule
table, it will return a warning message and will not create an ACL profile and rules to
capture unicast DHCP packets.
Enabled (Loose)
- This mode provides a looser way of control. If the user selects loose
mode, ARP packets and IP broadcast packets will be sent to the CPU. The packets will
still be forwarded by the hardware until a specific source MAC address is blocked by the
software. The port will check ARP packets and IP broadcast packets by IP-MAC-port
binding entries. When the packet is found by the entry, the MAC address will be set to
dynamic state. If the packet is not found by the entry, the MAC address will be set to
block. Other packets will be bypassed.
Zero IP
Use the pull-down menu to enable or disable this feature. Allow zero IP configures the
state which allows ARP packets with 0.0.0.0 source IP to bypass.
DHCP Packet
By default, the DHCP packet with broadcast DA will be flooded. When set to disable, the
broadcast DHCP packet received by the specified port will not be forwarded in strict
mode. This setting is effective when DHCP snooping is enabled, in the case when a
DHCP packet which has been trapped by the CPU needs to be forwarded by the
software. This setting controls the forwarding behavior in this situation.
Mode
Toggle between
ARP
and
ACL
. When configuring the port mode to ACL, the Switch will
create an ACL access entry corresponding to the entries of this port. If the port changes
to ARP, all the ACL access entries will be deleted automatically. The default mode is
ARP
.
Stop Learning
Threshold
Here is displayed the number of blocked entries on the port. The default value is
500
.
Click the
Apply
button to accept the changes made.
IMPB Entry Settings
This table is used to create static IP-MAC-binding port entries and view all IMPB entries on the Switch.
To view the following window, click
Security > IP-MAC-Port Binding (IMPB) > IMPB Entry Settings
, as shown
below:
Figure 9-31 IMPB Entry Settings window
The fields that can be configured are described below:
Содержание xStack DES-3810
Страница 1: ......