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OnSite Model 2800 Series overview 19
OnSite 2800 Series User Manual 1 • General information
• VPN tunneling for secure traversal of unsecured IP networks
• IPSec payload encryption with authentication header (AH, specified in RFC 2402) and encapsulating secu-
rity payload (ESP, specified in RFC 2406) protects data integrity and confidentiality and prevents unautho-
rized data-replay.
• Firewall capabilities including IP-address and IP-port filtering, access control lists (ACLs), and denial-of-
service (DoS) attack detection.
• Enhanced IP services include domain name service (DNS) resolver and relay, NAT/NAPT, dynamic DNS,
and DHCP server.
OnSite 2800 Series detailed description
The OnSite 2800 Series Managed VPN Router provides secure managed VPN routed networking with 2-port
Ethernet LAN connectivity and serial WAN access via a built-in V.35 or X.21 serial WAN interface
(see figure 2).
Figure 2. OnSite 2800 Series X.21, and V.35 connectors
OnSite 2800 Series model codes
Serial WAN models. The following models come equipped with an integrated V.35 or X.21 serial WAN port
and two 10/100Base-T Ethernet ports (see figure 2):
• OnSite 2821—X.21 WAN interface and two Ethernet ports
• OnSite 2835—V.35 WAN interface and two Ethernet ports
• OnSite 2803—T1/E1 WAN interface and two Ethernet ports
IPLink 2821 X.21 serial WAN port connector
10/100Base-T Ethernet LAN
ports 0/1 and 0/0
IPLink 2835 V.35 serial WAN port connector
10/100Base-T Ethernet LAN
ports 0/1 and 0/0