Chapter 8
| General Security Measures
IPv4 Source Guard
– 303 –
ip source-guard
binding
This command adds a static address to the source-guard ACL or MAC address
binding table. Use the no form to remove a static entry.
Syntax
ip source-guard binding [mode {acl | mac}] mac-address
vlan vlan-id ip-address interface ethernet unit/port-list
no ip source-guard binding [mode {acl | mac}] mac-address vlan vlan-id
mode - Specifies the binding mode.
acl - Adds binding to ACL table.
mac - Adds binding to MAC address table.
mac-address - A valid unicast MAC address.
vlan-id - ID of a configured VLAN for an ACL filtering table or a range of
VLANs for a MAC address filtering table. To specify a list separate
nonconsecutive VLAN identifiers with a comma and no spaces; use a
hyphen to designate a range of IDs. (Range: 1-4094)
ip-address - A valid unicast IP address, including classful types A, B or C.
unit - Unit identifier. (Range: 1)
port-list - Physical port number or list of port numbers. Separate
nonconsecutive port numbers with a comma and no spaces; or use a
hyphen to designate a range of port numbers. (Range: 1-28/52)
Default Setting
No configured entries
Command Mode
Global Configuration
Command Usage
â—† If the binding mode is not specified in this command, the entry is bound to the
ACL table by default.
â—† Table entries include a MAC address, IP address, lease time, entry type (Static-IP-
SG-Binding, Dynamic-DHCP-Binding), VLAN identifier, and port identifier.
â—† 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 308).
show ip source-guard Shows whether source guard is enabled or disabled on
each interface
PE
show ip source-guard
binding
Shows the source guard binding table PE
Table 57: IPv4 Source Guard Commands
Command Function Mode
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