Tahoe 1800, User Manual

Page: 4 / 32

1
1
1. Introduction
®
Tahoe 1800 series V.35/Ethernet routers are available in two
versions:
®
¡
Tahoe 1801 router contains one V.35 port and one Ethernet
port
®
¡
Tahoe 1808 router also contains one V.35 port, but instead of a
single Ethernet port, a managed 8-port VLAN-enabled switch is
built in
Routers are destined for use with HDLC or synchronous PPP point-
to-point connections and Frame Relay networks.
Router software supports IP, ARP, TCP, UDP and ICMP protocols. It
is manageable using telnet, SNMP or serial console. Traffic statistics are
available through WWW. Router status messages can be sent to a central
server using syslog protocol.
One network interface may support more than one IP subnetwork
thanks to interface aliases (eth0:0, eth0:1, etc.) and VLAN interfaces
(eth0.1, eth0.2, etc.). Router may also work as a bridge - in this mode
both interconnected networks create one whole on the hardware level
®
(e.g. computers with Microsoft Windows™ operating system will see
each other in the network neighborhood).
A built-in DHCP/BOOTP server allows assigning of IP addresses,
network mask, router addresses and other parameters to the network
stations. DHCP/BOOTP Relay Agent listens for DHCP and BOOTP
requests and forwards them to a central server.
Routers support Network Address Translation, i.e. make it
possible for a whole network to access Internet using only one real IP
address. Additional firewall improves the network security by blocking
unwanted traffic basing on IP addresses, TCP or UDP ports and protocols
appearing in the received packets.
The system firmware is stored in the Flash memory - it is possible
to update it using the TFTP protocol. The configuration is stored in the
EEPROM memory.
ii
®
Tahoe 1800 series (V.35 / Ethernet routers)
User Manual
http://www.tahoe-group.com/
Firmware version 1.2.7
®
©2004 Tahoe . All rights reserved.
Other trademarks of other companies are used only for explanation and to
the owner's benefit, without intent to infringe.
®
Tahoe assumes no responsibility for any errors or omissions that may appear in
®
this document. Tahoe makes no commitment to update the information
contained here, and may make changes at any time without notice.