Port Setting - Planet Networking & Communication igs-801m User Manual

4.9.7.4 Port Setting

Configures switch ports as trusted or untrusted.
Command Usage
A trusted interface is an interface that is configured to receive only messages from within the network. An untrusted interface

is an interface that is configured to receive messages from outside the network or firewall.
When DHCP snooping enabled both globally and on a VLAN, DHCP packet filtering will be performed on any untrusted ports

within the VLAN.
When an untrusted port is changed to a trusted port, all the dynamic DHCP snooping bindings associated with this port are

removed.
Set all ports connected to DHCP servers within the local network or firewall to trusted state. Set all other ports outside the

local network or firewall to untrusted state.
The DHCP Snooping Port Setting screens in
The page includes the following fields:
Object
 Port
 Type
 Chaddr Check
Buttons
: Click to apply changes.
Figure 4-9-37 &
Figure 4-9-37 DHCP Snooping Port Setting Page Screenshot
Description
Select port from this drop-down list
Indicates the DHCP snooping port mode. Possible port modes are:
 Trusted: Configures the port as trusted sources of the DHCP message.
 Untrusted: Configures the port as untrusted sources of the DHCP
message.
Indicates that the Chaddr check function is enabled on selected port.
Chaddr: Client hardware address.
Figure 4-9-38 appear.
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User's Manual of IGS-801M