TP-Link TL-SG5426 User Guide - Page 467

IP Source Guard Commands, Table 4-77

Page 467 highlights

4 IP Source Guard Commands 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 functions) 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. Command ip source-guard ip source-guard binding show ip source-guard show ip source-guard binding Table 4-77 IP Source Guard Commands Function Configures the switch to filter inbound traffic based on source IP address, or source IP address and corresponding MAC address Adds a static address to the source-guard binding table Mode IC GC Page 4-227 4-229 Shows whether source guard is enabled or disabled on each PE 4-230 interface Shows the source guard binding table PE 4-230 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

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IP Source Guard Commands
4-227
4
Example
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 functions) 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.
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.
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#
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
address, or source IP address and corresponding MAC address
IC
4-227
ip source-guard
binding
Adds a static address to the source-guard binding table
GC
4-229
show ip
source-guard
Shows whether source guard is enabled or disabled on each
interface
PE
4-230
show ip
source-guard
binding
Shows the source guard binding table
PE
4-230