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DATA SHEET
CISCO 836 ADSL OVER ISDN SECURE BROADBAND ROUTERS
ADVANCED SECURITY FOR DATA, VOICE, AND VIDEO ACCESS
IDEAL FOR SMALL OFFICES AND TELEWORKERS
The Cisco
®
836 router is ideal for providing secure Internet and corporate network connectivity to small remote offices and to
teleworkers (Figure 1). The Cisco 836 router provides integrated security services and advanced quality of service (QoS)
features for high-quality data, voice, and video applications. It offers easy deployment and remote management features with
Cisco IOS
®
Software.
The Cisco 836 router is ideal for providing secure Internet and corporate network connectivity to small remote offices and to teleworkers (Figure 1).
The Cisco 836 router provides integrated security services and advanced quality of service (QoS) features for high-quality data, voice, and video
applications. It offers easy deployment and remote management features with Cisco IOS Software.
The Cisco 836 router has an integrated asymmetric digital subscriber line (ADSL) modem that supports ADSL over Integrated Services Digital
Network (ISDN). It has an integrated ISDN Basic Rate Interface (BRI) S/T port for a backup ISDN line, and a four-port 10/100 Ethernet LAN switch
for connecting multiple PCs or network devices in a small-office network.
ADVANCED SECURITY AND PERFORMANCE FOR ENTERPRISE-CLASS VPNS
The Cisco 836 router delivers integrated enterprise-class security services, including hardware-accelerated IP Security (IPSec), Triple Data
Encryption Standard (3DES) encryption for virtual private networks (VPNs), and stateful-inspection firewall for secure Internet connectivity.
Optional advanced features—such as Cisco Easy VPN Remote (a software feature that allows simple deployment and management of VPNs); public
key infrastructure (PKI) security requiring digital certificates; IPSec Network Address Translation transparency (NAT-T); the Cisco Intrusion
Detection System (IDS)*; AES encryption*, and URL filtering*—help ensure that the small office receives the highest level of security, which
contributes to the corporate network’s security.
HIGH-QUALITY, SECURE VOICE AND VIDEO
The advanced QoS and high-performance encryption features of the Cisco 836 router provide high-quality voice and video services to remote users.
When IP phones are connected at a remote site, a Cisco 836 router can queue and prioritize the voice traffic over data traffic to ensure a high quality,
secure voice-over-IP (VoIP) connection from the remote or home office back to the corporate network. Unique Cisco IOS software capabilities such
as Preclassification of Traffic prior to Encryption* and Look-ahead Fragmentation before Encryption* ensure that traffic is correctly prioritized over
a secure IPSec tunnel.
Figure 1. The Cisco 836 ADSL over ISDN Router
