На ftp.dlink.ru выложена новая версия FW 4.50.B12 для DES-38XX
Также доступны новые версии модуля D-View 5.1 для данной прошивки

ниже - перечень изменений.
DES-3800 series Firmware Release Note
Firmware: 4.50.B12
Hardware: A1 & A2G for DES-3828 series / A1G for DES-3852
Date: August 1, 2008

Enhancements:
1. Extend the VLAN number learned by GVRP (Dynamic VLAN number) from 255 to 4K.
2. Support VLAN batch configuration – Can create/configure/delete multiple VLAN IDs by one single command.
3. Can remove all Trusted Hosts via Web, SNMP or one single command in CLI.
4. Support L3 Control Packet Filtering – Can filter DVMRP, PIM, IGMP Query, OSPF, RIP, or VRRP packets.
5. Support Radius attributes assignment - 1. Ingress/egress bandwidth attribute, 2. 802.1p priority attribute - to the port after successful 802.1X authentication.
6. Broadcast Segmentation – Can isolate layer 2 broadcast domains between ports while keep IP traffic being forwarded between ports without using cross-VLAN routing.
7. Support two more modes for Multicast Port Filtering Mode: Forward All Groups, Filter Unregistered Groups.
8. Can input IP address ranges of trusted hosts.
9. Show serial number on Web GUI and CLI. (Note: Only devices shipped with firmware version 4.50 onward will have S/N burned in the devices).
10. Support OSPF Default Information Originate - Advertise default route into OSPF routing domains.
11. Can enable/disable OSPF ECMP.
12. Can enable/disable response to traceroute (ICMP TTL=0) packets. (refer to 8. of Problem Resolved)
13. Extend the number of profiles and rules of CPU interface filtering from 5 to 10.
14. Can allow/disallow users to place ‘enable admin’ command after successful login to the switch. (Use ‘config authen enable_admin’ command to allow/disallow ‘enable admin’ for each login methods.)

Problems Resolved:
1. When using Net-SNMP to access DES-3852 and execute clear counters, the counters are successfully cleared, but the return value from the device is ‘failure’.
2. Correct spelling errors at the error message of the Bandwidth Control feature.
3. Create two IP interfaces and use two PCs at two VLANs to ping each other. If the PCs and DES-3800 do not have each others’ ARP entries, the first or two pings will be timeout.
4. After configuring command prompt in the CLI, saving it and rebooting the device, the command prompt setting is missing.
5. Forcing the port speed of the DES-3800 and DES-3000 will make the port on the DES-3800 not link with DES-3000.
6. The SNMP query to the switch does not get correct MAC addresses of IP interfaces when more than two IP interfaces are configured on the switch.
7. When a default route is statically configured, and another default route entry is derived from OSPF, the switch will always use the statically configured default route even OSPF is configured to have higher route preference.
8. Traceroute problem: The switch does not respond to an ICMP packet with TTL 0.


Note:
For DES-3828P, after downloading the firmware, it will take about 5 minutes because the PoE firmware will be upgraded as well.
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С уважением, Иван Дёмин и Бигаров Руслан