C
HAPTER
14
| Security Measures
IP Source Guard
– 350 –
To display port supplicant statistics for 802.1X:
1. Click Security, Port Authentication.
2. Select Show Statistics from the Step list.
3. Click Supplicant.
Figure 196: Showing Statistics for 802.1X Port Supplicant
IP SOURCE GUARD
IP Source Guard is a security feature that filters IP traffic on network
interfaces based on manually configured entries in the IP Source Guard
table, or dynamic entries in the DHCP Snooping table when enabled (see
"DHCP Snooping" on page 355). IP source guard can be used to prevent
traffic attacks caused when a host tries to use the IP address of a neighbor
to access the network. This section describes commands used to configure
IP Source Guard.
CONFIGURING PORTS
FOR
IP SOURCE
GUARD
Use the Security > IP Source Guard > Port Configuration page to set the
filtering type based on source IP address, or source IP address and MAC
address pairs.
IP Source Guard is used to filter traffic on an insecure port which receives
messages from outside the network or fire wall, and therefore may be
subject to traffic attacks caused by a host trying to use the IP address of a
neighbor.
CLI REFERENCES
â—† "ip source-guard" on page 684
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