На ftp.dlink.ru выложена новая версия FW 5.01-B52 для DES-3526/3550
Также доступны новые версии модуля D-View 6.0 для данной прошивки

Ниже - перечень изменений.

DES-3500 Series Firmware Release Note
Firmware: 5.01.B52
Hardware:
DES-3526/26DC:A1/A2/A3/A4G
DES-3550:A1/A2/A3/A4G /A5G
Date: Oct.15, 2008

Problem Resolved :
1. CPU utilization remains high while the traffic storm is released.
2. DHCP client sometimes can not get IP address from DHCP server while enabling IP-MAC-Port binding feature.
3. When connecting DES-3550 Giga port to DGS-1224T Giga port and then reboot DGS-1224T, the link between the DES-3550 and DGS-1224T will down unless it must unplug and plug the UTP cable to recover.
4. Once the ACL is set to block contents from source IP to destination IP, after that if we configure DES-3526 Bandwidth control Rx rate from 1 to 99 Mbps, the ACL setting will fail. This is because the priority confliction between ACL and bandwidth control. The R5.1 FW adjusts the priority between the ACL and bandwidth control based on customer’s request.
5. When configuring both DES-3550’s Giga ports to 1000_Full and connect to each other (port49 connect port50). The Link status is always link down.
6. While connecting to DES-3526 via telnet and set the terminal line 20 ~80. Some problems occur in show ports description command: the "n" (next page) and "p" (previous page) can’t work correctly.
7. While executing DHCP auto configuration and reboot the device, the log-in screen shows up and all the auto configuration tasks will be held up until user press any key to continue the processes.
8. Fail in setting daylight saving time, user can’t set daylight saving time successfully.
9. The auto assign Access ID of the ACL rule can be configured via Web, but it can't be configured via CLI.
10. When there are dual image in the device, if user firstly select the image 2 as the boot up and delete the image 1, after switch reboot the device will change the original image 2 to be image 1.

New features :

1. IP-MAC-Port Binding v3.3
2. DHCP Relay option 60/61
3. D-View Module support HP OV NNM v7.51
4. 802.1Q-2005(STP Root Restriction)
5. Configurable auto MDI/MDIX function
6. Gratuitous ARP
7. Cable Diagnostics
8. "Show tech support" command
9. 802.1x sesssion timeout attribute
10. VLAN batch configuration
11. Time-based ACL
12. Add RFC2869 RADIUS extension standard for two attribute "Acct-Input-Gigawords & Acct-Output-Gigawords"
13. Password encryption
14. 802.1X Port-Based Access Control with Target VLAN behavior (Add ingress/egress bandwidth attribute and 802.1p priority attribute)
15. Multicast router traffic control
16. BPDU restriction
17. S/N display on UI
18. Keep static VLAN setting and IPIF while resetting system
19. DHCP local relay
20. ARP Spoofing Prevention

С уважением, Бигаров Руслан