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NOTE:
After you make changes to the configuration in this page, you must
commit the changes for them to take effect. To commit all changes to
the active configuration, select
Commit Options
>
Commit
. See “Using the
Commit Options to Commit Configuration Changes (J-Web Procedure)”
on page 334 for details about all commit options.
2.
Click one:
•
Edit
—Click this option to modify the security features for the selected port or VLAN.
Enter information as specified in Table 328 on page 2628 to modify Port Security
settings on VLANs.
Enter information as specified in Table 329 on page 2629 to modify Port Security
settings on interfaces.
•
Activate/Deactivate
—Click this option to enable or disable security on the switch.
Table 328: Port Security Settings on VLANs
Your Action
Function
Field
Select to enable DHCP snooping on a specified VLAN or all
VLANs.
TIP: For private VLANs (PVLANs), enable DHCP snooping
on the primary VLAN. If you enable DHCP snooping only on
a community VLAN, DHCP messages coming from PVLAN
trunk ports are not snooped.
Allows the switch to monitor and control
DHCP messages received from untrusted
devices connected to the switch. Builds and
maintains a database of valid IP
addresses/MAC address bindings. (By
default, access ports are untrusted and trunk
ports are trusted.)
Enable DHCP
Snooping on
VLAN
Select to enable ARP inspection on a specified VLAN or all
VLANs. (Configure any port on which you do not want ARP
inspection to occur as a trusted DHCP server port.)
Uses information in the DHCP snooping
database to validate ARP packets on the
LAN and protect against ARP cache
poisoning.
Enable ARP
Inspection on
VLAN
Enter a number. The default is unlimited.
Specifies the number of times per second
that a MAC address can move to a new
interface.
MAC Movement
Select one:
•
Log—Generate a system log entry, an SNMP trap, or an
alarm.
•
Drop—Drop the packets and generate a system log entry,
an SNMP trap, or an alarm (default).
•
Shutdown—Shut down the VLAN and generate an alarm.
You can mitigate the effect of this option by configuring
autorecovery from the disabled state and specifying a
disable timeout
value. See “Configuring Autorecovery From
the Disabled State on Secure or Storm Control Interfaces
(CLI Procedure)” on page 2516.
•
None—No action to be taken.
Specifies the action to be taken if the MAC
move limit is exceeded.
MAC Movement
Action
2628
Dell PowerConnect J-Series Ethernet Switch Complete Software Guide for Junos OS
Summary of Contents for PowerConnect J-EX8208
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Page 383: ...CHAPTER 21 Configuration Statements for Power Management 311 ...
Page 387: ...CHAPTER 22 Operational Mode Commands for Power Management 315 ...
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Page 631: ...CHAPTER 41 Configuration Statements for System Monitoring 559 ...
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Page 1061: ...CHAPTER 56 Operational Mode Commands for Interfaces 989 ...
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Page 1297: ...CHAPTER 63 Operational Mode Commands for Bridging and VLANs 1225 ...
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Page 1461: ...CHAPTER 69 Operational Mode Commands for Spanning Tree Protocols 1389 ...
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Page 2215: ...CHAPTER 80 Operational Mode Commands for IGMP Snooping and Multicast 2143 ...
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