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The enhanced Cisco 1721 Modular Access Router is designed to help organizations embrace the productivity benefits of e-business applications. The Cisco 1721 router enables e-business by delivering secure Internet, intranet, and extranet access with virtual private networks (VPNs) and firewall technology. The Cisco 1721 offers higher performance, additional functionality, and increased memory capacity over the Cisco 1720. In addition, the Cisco 1721 supports standards-based IEEE 802.1Q VLAN routing, which enables enterprises to set up multiple VLANs and route between them for added security within the internal corporate network. | Product Description | Cisco 1721 Modular Access Router - router | | Device Type | Router | | Form Factor | External - modular | | Dimensions (WxDxH) | 11.2 in x 8.7 in x 3.1 in | | Weight | 2.9 lbs | | RAM | 64 MB (installed) / 96 MB (max) | | Flash Memory | 32 MB (installed) / 16 MB (max) | | Data Transfer Rate | 100 Mbps | | Routing Protocol | OSPF, HSRP, NHRP | | Data Link Protocol | Ethernet, Fast Ethernet | | Remote Management Protocol | SNMP, RMON, Telnet | | Features | Cisco IOS , modular design, full duplex capability, firewall protection, auto-sensing per device, IP-routing, DHCP support, NAT support, VPN, auto-negotiation, VLAN support | | Compliant Standards | IEEE 802.1Q | | Power | AC 100/240 V ( 50/60 Hz ) |
| General | | Device Type | Router | | Form Factor | External - modular | | Installed Modules Qty (Max) | 0 (installed) / 3 (max) | | Width | 11.2 in | | Depth | 8.7 in | | Height | 3.1 in | | Weight | 2.9 lbs | | Memory | | RAM | 64 MB (installed) / 96 MB (max) | | Flash Memory | 32 MB (installed) / 16 MB (max) |
| Networking | | Connectivity Technology | Wired | | Data Transfer Rate | 100 Mbps | | Data Link Protocol | Ethernet, Fast Ethernet | | Routing Protocol | OSPF, HSRP, NHRP | | Remote Management Protocol | SNMP, RMON, Telnet | | Status Indicators | Link activity, collision status, power | | Features | Modular design, full duplex capability, firewall protection, auto-sensing per device, IP-routing, DHCP support, NAT support, VPN, auto-negotiation, VLAN support | | Compliant Standards | IEEE 802.1Q | | Expansion / Connectivity | | Expansion Slots Total (Free) | 3 ( 3 ) x expansion slot
Memory | | Interfaces | 1 x network - Ethernet 10Base-T/100Base-TX - RJ-45
1 x management - console - RJ-45
1 x management - auxiliary - RJ-45 | | Miscellaneous | | Authentication Method | RADIUS, PAP, CHAP, X.509 certificates, TACACS+ | | Compliant Standards | FCC Class B certified, ETSI, CSA, CTR 21, CISPR 22 Class B, EN 60950, EN55022, IEC 61000-3-2, IEC 61000-4-11, IEC 61000-4-2, IEC 61000-4-4, IEC 61000-4-5, UL 1950, VCCI-II |
| Power | | Power Device | Power adapter - external | | Voltage Required | AC 100/240 V ( 50/60 Hz ) | | Power Consumption Operational | 20 Watt |
| Environmental Parameters | | Min Operating Temperature | 32 °F | | Max Operating Temperature | 104 °F | | Humidity Range Operating | 10 - 85% |
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