SMC Networks SMC8150L2 manual IP Source Guard Commands, Ip source-guard

IP Source Guard Commands 4

Example

Console#ping 10.1.0.9 Type ESC to abort.

PING to 10.1.0.9, by 5 32-byte payload ICMP packets, timeout is 5 seconds response time: 10 ms

response time: 10 ms

response time: 10 ms

response time: 10 ms

response time: 10 ms

Ping statistics for 10.1.0.9:

5 packets transmitted, 5 packets received (100%), 0 packets lost (0%) Approximate round trip times:

Minimum = 10 ms, Maximum = 20 ms, Average = 10 ms Console#

Related Commands

interface (4-116)

IP Source Guard Commands

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 static and dynamic entries in the DHCP Snooping table when enabled (see “DHCP Snooping Commands” on page 4-231). 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.

Note: Due to a chip limitation, IP source guard and Quality of Service (only for IP related QoS function) cannot be enabled at the same time. Thus, if the user has already enabled the IP source guard function, it needs to be disabled first in order for the QoS function to work and vice versa.

Table 4-77 IP Source Guard Commands

Command	Function	Mode	Page
ip source-guard	Configures the switch to filter inbound traffic based on source IP	IC	4-227
	address, or source IP address and corresponding MAC address
ip source-guard	Adds a static address to the source-guard binding table	GC	4-229
binding
show ip	Shows whether source guard is enabled or disabled on each	PE	4-230
source-guard	interface
show ip	Shows the source guard binding table	PE	4-230
source-guard
binding

ip source-guard

This command configures the switch to filter inbound traffic based source IP address, or source IP address and corresponding MAC address. Use the no form to disable this function.

4-227