DES-1228P Firmware Release Note  
Firmware: v1.20.12
Hardware: A1
Date: Dec. 10th, 2007

Problems Resolved:
1. Fix the bug if users enabled SNMP Trap settings after few hours of operation that switch will not respond the Ping or Web request, but the packet switching works normally.
2. Fix the issue when generating lot of leave messages in IGMP snooping, the switch will not respond the Ping or Web request after few hours of operation.
3. Fix the bug of invalid VLAN group setting over 64 groups
4. Fix the bug of invalid IGMP parameter settings, especially for Query Interval, Max Response Time, Robustness Variable and Last Member Query Interval.

Enhancements:
No

========================================================================
Firmware: v1.20.08
Hardware: A1
Date: July 6, 2007

Problems Resolved:
1. Fix the incompatibility issue with DEM-311GT v.C1. When plugging and unplugging the DEM-311GT v.C1 several times, then the fiber port of switch can not link. After resetting switch, the fiber port can link well. 
2. Fix the switch authentication function error issue via Smart WLAN Manager. 

Enhancements:
1. 802.1ab LLDP
2. Add “Anti-Rouge AP” function (Only for Smart WLAN Manager)
========================================================================
Firmware: v1.20.07(Only for DCAN)
Hardware: A1
Date: July 2, 2007

Problems Resolved:
N/A 

Enhancements:
1. Add DSCP QoS function


Firmware: v1.10.00
Hardware: A1
Date: July 19, 2006

Problems Resolved:
1. Fix the lighting upside down issue of Link/Act LED and port speed LED for port 1-24.

Enhancements:
None

_____________________________________________________________________________________
Firmware: v1.00.05
Hardware: A1 
Date: Sep 11, 2006

Problems Resolved:
None

Enhancements:
First Release