If remote ID sub-option is configured, forward the packet after
replacing the remote ID sub-option of the original Option 82
with the configured remote ID sub-option in ASCII format.
3.7.6.2 Port Configuration
When an unauthorized DHCP server exists in the network, a DHCP client may obtains an
illegal IP address. To ensure that the DHCP clients obtain IP addresses from valid DHCP
servers, The IPC-1840 switches can specify a port to be a trusted port or an untrusted port by
the DHCP snooping function.
Trusted A trusted port is connected to an authorized DHCP server directly or indirectly.
It forwards DHCP messages to guarantee that DHCP clients can obtain valid
IP addresses.
Untrusted An untrusted port is connected to an unauthorized DHCP server. The
DHCP-ACK or DHCP-OFFER packets received from the port are discarded,
preventing DHCP clients from receiving invalid IP addresses.
This page sets the DHCP trust port for the specified Ethernet Port. The lower part of this page
lists all the DHCP Snooping Port.
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