1-7 AcerRouter 700 Series User Guide
servers are assigned public IP address obtained from your ISP, and will be accessible
by users across the Internet.
However, in order for the LAN to LAN communications to work, the default private
network address (192.168.168.0) for one of the above AcerRouter 700 has to be
changed (to 192.168.170.0 in the above example). The traffic between these two
networks is secure because data is sent across the ISDN network via a direct phone
call
Security Overview
More and more people are concerned about security of their data in this Internet era.
The AcerRouter 700 provides many ways to help make your network and your data
secure:
•All dial-in users and LAN-to-LAN communications require PPP PAP/CHAP
authentication (basically user name and password)
•The AcerRouter also supports call-back for dial-in users - so that remote users are
really who they say they are
•ISDN Caller ID may be used for incoming call authentication
•The AcerRouter uses private IP addressing scheme to prevent devices on your
LAN from access by users from the Internet
•Console, Telnet and SMART support password protection
•DES encryption is supported for inter-office, non-VPN connections
•DES encryption with PPP/ECP negotiation is supported for VPN connections
•IP packet filtering may be used to futher enhance security requirements
A Physical Look at the AcerRouter 700

The connectors on the back

The following illustration shows the rear panel of a AcerRouter 700.:
Figure 1-8 AcerRouter 700 Connectors
•1 RJ-45 ISDN connector for connecting to the ISDN wall jack from your phone
company. This can be a U interface for the North America market version, and an
S/T interface for the rest of the world.
•3 RJ-11 POTS (Plain Old Telephone Service) ports for the connection of
conventional telephone equipment
•4 RJ-45 10Base-T LAN connectors for connecting to PCs and workstations, or to
another Ethernet hub
•1 RS-232 DB-9 Auxiliary connector for connecting to a console (or equivalent)
•1 12V DC power connector for connecting through an AC power adapter
(included as part of the product) to the wall power outlet
•1 connector for grounding purposes. In most cases, the grounding is not
necessary
AUX ISDN
∋A ∋B ∋CON
Uplink
LAN 1 LAN 2 LAN 3 LAN 4