| Product Information | The Cisco 1841 router features secure, fast, and high-quality delivery of multiple, concurrent services for small-to-medium-sized businesses and small enterprise branch offices. The Cisco 1841 router offers embedded hardware-based encryption enabled by an optional Cisco IOS Software security image; further enhancement of VPN performance with an optional VPN acceleration module; an intrusion prevention system (IPS) and firewall functions; interfaces for a wide range of connectivity requirements, including support for optional integrated switch ports; plus sufficient performance and slot density for future network expansion and advanced applications as well as an integrated real-time clock.
| | Product MPN | | MPN | CISCO1841ADSLD |
| | Key Features | | Router Functionalities | Firewall, VPN Pass-Thru, Voice over IP Gateway (VoIP) | | Connectivity | Wired |
| | Interfaces | | Built-In | 2-port Built-In Switch | | LAN Interfaces | 10/100 Base-T | | Additional Interfaces | 1 x USB |
| | Standards and Protocols | | LAN Standards | IEEE 802.3 CSMA/CD or Ethernet, IEEE 802.3u 100 Mbps (Fast Ethernet) | | Protocols | IP | | Remote Management Protocol | HTTP, SNMP |
| | Firewall / VPN | | Firewall Features | Content Filtering | | VPN Protocols | IPSec | | Encryption Standards | 3DES, DES |
| | Modem | | DSL Standards | ADSL Lite (G.Lite ITU G.992.2), HDSL (ITU G.991.1), SHDSL (G.SHDSL ITU G.991.2) |
| | Memory | | Installed RAM | 128 MB | | Installed Flash Memory | 32 MB |
| | Dimensions | | Width | 13.5 in. | | Depth | 10.8 in. | | Height | 1.73 in. | | Weight | 6 lb. |
| | Miscellaneous | | Release Date | September, 2004 |
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