General Security Measures
3-125
3
Configuring Static Binding for IP Source Guard
Use the IP Source Guard Static Configuration page to bind a static address to a port.
Table entries include a MAC address, IP address, lease time, entry type (Static,
Dynamic), VLAN identifier, and port identifier. All static entries are configured with
an infinite lease time, which is indicated with a value of zero in the table.
Command Usage
• Static addresses entered in the source guard binding table are automatically
configured with an infinite lease time. Dynamic entries learned via DHCP snooping
are configured by the DHCP server itself, of which static entries include a manually
configured lease time.
• Static bindings are processed as follows:
- If there is no entry with the same VLAN ID and MAC address, a new entry is
added to the binding table using the type “static IP source guard binding.”
- If there is an entry with the same VLAN ID and MAC address, and the type of
entry is static IP source guard binding, then the new entry will replace the old
one.
- If there is an entry with the same VLAN ID and MAC address, and the type of the
entry is dynamic DHCP snooping binding, then the new entry will replace the old
one and the entry type will be changed to static IP source guard binding.
Command Attributes
•
Static Binding Table Counts
– The total number of static entries in the table.
•
Current Static Binding Table
– The list of current static entries in the table.
•
Port
– The port to which a static entry is bound.
(Range: 1-28 on iES4028F/iES4028FP, 1-24 on iES4024GP)
•
VLAN ID
– ID of a configured VLAN (Range: 1-4094)
•
MAC Address
– A valid unicast MAC address.
•
IP Address
– A valid unicast IP address, including classful types A, B or C.
Summary of Contents for iES4028F
Page 1: ...iES4028F 4028FP 4024GP ...
Page 4: ...iv This page is intentionally left blank ...
Page 10: ...x This page is intentionally left blank ...
Page 28: ...Contents xxviii This page is intentionally left blank ...
Page 32: ...Tables xxxii This page is intentionally left blank ...
Page 46: ...Introduction 1 10 1 This page is intentionally left blank ...
Page 336: ...Configuring the Switch 3 280 3 This page is intentionally left blank ...
Page 688: ...Command Line Interface 4 352 4 This page is intentionally left blank ...
Page 702: ...Glossary Glossary 8 This page is intentionally left blank ...
Page 710: ...Index 8 Index This page is intentionally left blank ...
Page 711: ...This page is intentionally left blank ...
Page 712: ...iES4028F 4028FP 4024GP ...