安全
| 防火墙 |
NAT |
| 虚拟专用网信道数量 |
10 |
| MAC（媒体存储控制）地址过滤 |
Y |
以太网LAN特性
| 布线技术 |
10/100Base-T(X) |
| 以太网的数据传输率 |
10, 100 Mbit/s |
端口 & 界面
| 广域网接口 |
Ethernet (RJ-45) |
| DC-IN插口 |
Y |
协议
| 路由协议 |
RIP-1, RIP-2 |
| 管理协议 |
ICMP, Telnet, SNMP 3, HTTP, HTTPS |
| 动态主机配置协议客户 |
Y |
| 动态主机配置协议服务器 |
Y |
| 支持网络协议 |
OSPF, PAT, PPPoE, STP, DNS |
环境条件
| 非操作相对湿度(非冷凝) |
5 - 95% |
| 非运行高度 |
0 - 4570 m |
| 运行温度范围（T - T） |
32 - 104 °F |
| 工作高度 |
0 - 3000 m |
另外
| 以太网连接器 |
Y |
| 以太网路(RJ-45)连接接口数量 |
4 |
SR520 Secure Router, Fast Ethernet, 100-240V
A Flexible, Easy-to-Manage Router to Secure Your Small Business
More than ever, you need to secure your network to keep you business assets safe from threats. You depend on your network to keep you connected to the people you do business with every day, from customers to suppliers and business partners. Yet when you have a small networking staff, it can be difficult to manage your network and make sure it is well protected from security breaches. To be successful, you need a complete network solution that delivers the security and rich features you need, yet is affordable and easy to use.
The Cisco ® 520 Secure Router combines Internet access, advanced security, virtual private network (VPN) access, and optional wireless networking, all in a single easy-to-use device. Designed for seamless integration with the Cisco Smart Business Communications System - a complete set of advanced voice, data, security, and wireless networking products designed specifically for small businesses - the Cisco 520 Secure Router brings together multiple technologies to help you improve network security and simplify network management.
The Cisco 500 Series Secure Routers deliver:
- High performance broadband access for small offices and teleworkers
- Highly secure remote access and site-to-site connectivity with IP Security (IPsec) VPN, Secure Sockets Layer (SSL) VPN, and dynamic multipoint VPN (DMVPN)
- Built-in threat defense, including:
Stateful packet inspection (SPI) firewall to help minimize web and email threats
Intrusion prevention system (IPS), providing protection from attacks, worms, and viruses by detecting and stopping these threats before they can affect the network
Cisco IOS® Content Filtering to restrict access to undesirable websites and help guard against malware and phishing attacks
- Highly secure 802.11b/g wireless networking option to connect mobile employees in the workplace
- Support for static routing and dynamic routing protocols to easily adapt to diverse network environments
- Quality of service (QoS) for crisp voice and video communications
- 4-port 10/100 managed switch with VLAN support to interconnect workplace devices such as computers, servers, and printers
- Simple deployment, management, and troubleshooting with Cisco Configuration Assistant
