1-8
Examples
# Enable port security.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] port-security enable
Notice: The port-control of 802.1x will be restricted to auto when port-security is enabled.
Please wait... Done.
port-security intrusion-mode
Syntax
port-security intrusion-mode { blockmac | disableport | disableport-temporarily }
undo port-security intrusion-mode
View
Ethernet port view
Parameters
blockmac: Adds the source MAC addresses of illegal packets to the blocked MAC address list. As a
result, the packets sourced from the blocked MAC addresses will be filtered out. A blocked MAC
address will be unblocked three minutes (not user configurable) after the block action.
disableport: Disables a port permanently once an illegal frame or event is detected on it.
disableport-temporarily: Disables a port for a specified period of time after an illegal frame or event is
detected on it. You can set the period with the port-security timer disableport command.
Description
Use the port-security intrusion-mode command to set intrusion protection.
Use the undo port-security intrusion-mode command to disable intrusion protection.
By default, intrusion protection is not configured.
By checking the source MAC addresses in inbound data frames or the username and password in
802.1x authentication requests on a port, intrusion protection detects illegal packets (packets with
illegal MAC address) or events and takes a pre-set action accordingly. The actions you can set include:
disconnecting the port temporarily/permanently and blocking packets with invalid MAC addresses.
The following cases can trigger intrusion protection on a port:
z A packet with unknown source MAC address is received on the port while MAC address learning is
disabled on the port.
z A packet with unknown source MAC address is received on the port while the amount of security
MAC addresses on the port has reached the preset maximum number.
z The user fails the 802.1x or MAC address authentication.
To Next Page
Loading...
