DAS-3248DC rev.C, f/w version 2.55_b119

Release notes:

1) Add the function of modifying VPI/VCI values of existed PVC's both on CLI and Web
2) Eth-3 configuration can be specified the ip address 0.0.0.0 and mask 0.0.0.0 (with interface remains disabled or enabled), and configuration can be commit DSLAM will reboot with Last configuration.
3) Add the function of increasing the MAC limit to 256 per dsl port. When the total maclimit number of system has been set to be over 4000, an error message will appear both on CLI and Web. 
4) Add function "DHCP relay VLAN translation mode" CLI
5) Set MVR group IP with range Web & CLI
6) When vlanid is created in Ethernet VLAN membership, you can not create an entry with the same VLAN (vlanid) in MVR Channel Web & CLI
7) VLAN name adding function Web & CLI
8) Port Description adding function Web & CLI
9) Fix the memory leak issue when using telnet service.
10) Modify real FAST mode parameter when line type is "fast-only" for adsl2 and adsl2+.