User`s manual
Table Of Contents
- 1. Introduction
 - 2. Getting Started
 - 3. Featured Functions
- Configuring Basic Settings
 - Using Port Trunking
 - Configuring SNMP
 - Using Communication Redundancy
 - Using Traffic Prioritization
 - Using Virtual LAN
 - Using Multicast Filtering
 - Using Bandwidth Management
 - Using Port Access Control
 - Using IP Filter
 - Using Auto Warning
 - Using Line-Swap-Fast-Recovery
 - Using Set Device IP
 - Using Diagnosis
 - LLDP
 - Using Monitor
 - Using the MAC Address Table
 - Using System Log
 - Using HTTPS/SSL
 
 - A. MIB Groups
 - B. Specifications
 - C. Modbus/TCP Map
 

PT-7728 User’s Manual  Featured Functions 
3-70
DHCP Option 82 
Enable Option82 
Setting Description  Factory Default
Enable or Disable  Enable or disable DHCP Option 82 function.  Disable 
Type 
Setting Description  Factory Default
IP  Use the switch’s IP address as the remote ID sub-option.  IP 
MAC  Use the switch’s MAC address as the remote ID 
sub-option. 
IP 
Client-ID  Use a combination of the switch’s MAC address and IP 
address as the remote ID sub-option. 
IP 
Other  Use a user-defined value as the remote ID sub-option.  IP 
Value 
Setting Description  Factory Default
  Displays the value according to the type you set.   
Max. 12 
characters 
If you set Other as the Type, you will need to provide a 
value. 
switch’s IP 
address 
Display 
Setting Description  Factory Default
  The actual hexdecimal value set by the DHCP server for 
the Remote-ID. This value is automatically generated 
based on the Value field. Users cannot modify it. 
C0A87FFB 
DHCP Function Table 
Enable 
Setting Description  Factory Default
Enable or Disable  Enable or disable DHCP Option 82 function for this 
port. 
Disable 
Using Diagnosis 
The PT-7728 provides two important tools for administrators to diagnose network systems. 
Mirror Port 










