Planet Networking & Communication SGS-6340-24T4S Command Manual page 512

be dealt with. If the port is already closed by ARP scanning prevention, it will be opened right after being set as a
trusted port.
When remotely managing a switch with a method like telnet, users should set the uplink port as a Super Trust port
before enabling anti-ARP-scan function, preventing the port from being shutdown because of receiving too many
ARP messages. After the anti-ARP-scan function is disabled, this port will be reset to its default attribute, that is,
distrusted port.
Example:
Set port ethernet 4/5 of the switch as a trusted port.
Switch (config) #in e4/5
Switch (Config-If-Ethernet4/5) # anti-arpscan trust port
26.5 anti-arpscan trust ip
Command:
anti-arpscan trust ip <ip-address> [<netmask>]
no anti-arpscan trust ip <ip-address> [<netmask>]
Function:
Configure trusted IP;" no anti-arpscan trust ip <ip-address> [<netmask>]"command reset the IP to non-trustful IP.
Parameters:
<ip-address>: Configure trusted IP address; <netmask>: Net mask of the IP.
Default Settings:
By default all the IP are non-trustful. Default mask is 255.255.255.255
Command Mode:
Global configuration mode
User Guide:
If a port is configured as a trusted port, then the ARP scanning prevention function will not deal with this port, even if
the rate of received ARP messages exceeds the set threshold, this port will not be closed. If the port is already
closed by ARP scanning prevention, its traffic will be recovered right immediately.
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