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General Security Measures
4-141
4
ip source-guard binding
This command adds a static address to the source-guard binding table. Use the
no
form to remove a static entry.
Syntax
ip source-guard binding
mac-address
vlan
vlan-id ip-address
interface ethernet
unit/port
no
ip source-guard
binding
mac-address
vlan
vlan-id
•
mac-address
- A valid unicast MAC address.
•
vlan-id
- ID of a configured VLAN (Range: 1-4094)
•
ip-address
- A valid unicast IP address, including classful types A, B or C.
•
unit
- Stack unit. (Range: 1)
•
port
- Port number. (Range: 1-28)
Default Setting
No configured entries
Command Mode
Global Configuration
Command Usage
• Table entries include a MAC address, IP address, lease time, entry type
(Static-IP-SG-Binding, Dynamic-DHCP-Binding), VLAN identifier, and port
identifier.
• All static entries are configured with an infinite lease time, which is indicated
with a value of zero by the
show ip source-guard
command (page 4-142).
• When source guard is enabled, traffic is filtered based upon dynamic entries
learned via DHCP snooping, or static addresses configured in the source
guard binding table with this command.
• Static bindings are processed as follows:
- If there is no entry with same VLAN ID and MAC address, a new entry is
added to binding table using the type of static IP source guard binding.
- If there is an entry with 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 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.
Example
This example configures a static source-guard binding on port 5.
Console(config)#ip source-guard binding 11-22-33-44-55-66 vlan 1
192.168.0.99 interface ethernet 1/5
Console(config-if)#
Summary of Contents for 8126PL2-F
Page 1: ...MANAGEMENT GUIDE ta TigerSwitchTM 10 100 1000 L2 Lite SMB PoE Gigabit Switch SMC8126PL2 F ...
Page 2: ......
Page 6: ...vi ...
Page 22: ...Contents xxii ...
Page 26: ...Tables xxvi ...
Page 48: ...Initial Configuration 2 10 2 ...
Page 117: ...User Authentication 3 69 3 Web Click Security AAA Summary Figure 3 43 AAA Accounting Summary ...
Page 590: ...Command Line Interface 4 302 4 ...
Page 604: ...Glossary Glossary 8 ...
Page 612: ...Index 8 Index ...
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Page 614: ...149100000023A R01 SMC8126PL2 F ...