The Cisco 830 Series is
comprised of the Cisco 831 Ethernet Broadband Router, the Cisco 836 ADSL over
ISDN Broadband Router with an ISDN BRI port, and the Cisco 837 ADSL Broadband
Router. The Cisco 831 router has an Ethernet WAN port for use with an external
digital subscriber line (DSL) or cable modem. The Cisco 836 router supports
asymmetric DSL (ADSL) over Integrated Services Digital Network (ISDN). The
Cisco 837 router supports ADSL over POTS (basic telephone service). All models
offer a four-port 10/100 Ethernet LAN switch for connecting multiple PCs or
network devices in a small-office network.
The Cisco 830 Series
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
OSPF, RIP, and RIP v2, EIGRP and BGP (limited) routing protocols; Cisco Easy
VPN Remote (a software feature that allows simple deployment and management of
VPNs) and Easy VPN Server (limited to five users); public key infrastructure
(PKI) security requiring digital certificates; IPSec Network Address Translation
transparency (NAT-T); the Cisco Intrusion Detection System (IDS); WCCP and URL
filtering-help ensure that the small office receives the highest level of
security, which contributes to the corporate network's security.
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