安全
| 防火墙 |
IPS, NAT, PAT |
| 支持虚拟专用网 |
L2TP/PPTP/IP |
| 虚拟专用网信道数量 |
25 |
以太网LAN特性
| 布线技术 |
10/100/1000Base-T(X) |
| 以太网LAN接口类型 |
Gigabit Ethernet |
| 以太网的数据传输率 |
10, 100, 1000 Mbit/s |
无线局域网的特点
| Wi-Fi标准 |
IEEE 802.11n |
| 无线局域网类型 |
IEEE 802.11b, IEEE 802.11g, IEEE 802.11n |
其他功能
| xDSL connection |
N |
| 输入电流 |
2.5 A |
| 频段 |
2.4 GHz |
| USB 端口数量 |
1 |
天线
| 天线类型 |
external |
| 天线增益水平（最大值） |
2 dBi |
| 天线数量 |
2 |
| 可拆式天线（S） |
Y |
协议
| 动态主机配置协议客户 |
Y |
| 动态主机配置协议服务器 |
Y |
另外
| 以太网连接器 |
Y |
| 以太网路(RJ-45)连接接口数量 |
8 |
8 x 10/100/1000 LAN, 1 x 10/100/1000 WAN, 802.11b/g/n, 2 dBi, USB 2.0, 3G, DHCP, Black
D-Link Unified Services Routers offer secure, high performance networking solutions to address the growing needs of businesses. The integrated high-speed IEEE 802.11n and 3G wireless technologies offer comparable performance to traditional wired networks, but with fewer limitations. Each router provides optimal network security with features such as Virtual Private Network (VPN) tunnels, IP
Security (IPSec), Point-to-Point Tunneling Protocol (PPTP), Layer 2 Tunneling Protocol (L2TP), and Secure Sockets Layer (SSL). These routers empower your mobile workers with client less remote access anywhere and anytime using SSL VPN tunnels.
Robust VPN Features
A fully featured virtual private network (VPN) provides your mobile workers and branch offices with a secure link to your network. The DSR-250N, DSR-500N and DSR-1000N are capable of simultaneously managing 5,10 or 20 Secure Sockets Layer (SSL) VPN tunnels respectively, empowering your mobile users by providing remote access to a central corporate database. Site-to- site VPN tunnels use IP Security (IPSec) Protocol, Point-to-Point Tunneling Protocol (PPTP), or Layer 2 Tunneling Protocol (L2TP) to facilitate branch office connectivity through encrypted
virtual links. The DSR-250N supports up to 25 simultaneous VPN tunnels, the DSR-500N supports up to 35 simultaneous VPN tunnels, and the DSR-1000N up to 70 VPN tunnels.
