Cisco Modular router with 2 WAN slots, desktop form factor chassis, IP BASE IOS Software image, 2 Fast Ethernet slots, 64-MB Flash, and 128-MB DRAM

**Modular Platform Supporting T1/E1 Speeds**

The Cisco 1841 Integrated Services Router is part of the Cisco 1800 Integrated Services Router Series which complements the Integrated Services Router Portfolio.

**The Cisco 1841 Integrated Services Router provides the following support:**

- Wire-speed performance for concurrent services at T1/E1 WAN rates

- Enhanced investment protection through increased performance and modularity

- Enhanced investment protection through increased modularity

- Increased density through High-Speed WAN Interface Card Slots (two)

- Support for over 90 existing and new modules

- Support for majority of existing WICs, VWICs, and VICs (data mode only)

- Two Integrated 10/100 Fast Ethernet ports

- Security

- On-board encryption

- Support of up to 800 VPN tunnels with the AIM Module

- Antivirus defense support through Network Admission Control (NAC)

- Intrusion Prevention as well as stateful Cisco IOS Firewall support and many more essential security features

Specifications