98 CHAPTER 8: CONFIGURING THE DUAL 56K LAN MODEM FOR DIAL-IN SUPPORT
This is because the called LAN Modem acts as the DNS server for workstations
attached to the calling LAN Modem. An example of a LAN Modem Site-to-Site
setup is shown in Figure 55.
Figure 55 LAN Modem Site-to-Site Dial-in Profile Type
Choose LAN Modem Site-to-Site when your dial-in user will access a LAN
Modem from another LAN Modem, where LAN resources are accessible on both
ends of the connection.
Advanced Dial-in The Advanced Dial-in profile applies to a network scenario in which a router
other than a LAN Modem will be dialing into the Dual 56K LAN Modem.
Advanced Dial-in assumes that both the Dual 56K LAN Modem and the other
router have been manually configured for static IP addressing, and each employs a
unique range of addresses, as shown in Figure 56.
Figure 56 Advanced Dial-in Profile Type
Choose Advanced Dial-in if your LAN is using static IP addressing, or your dial-in
user will be accessing a LAN Modem from a router other than a LAN Modem.
Note that the Advance Dial-in is the most complex dial-in scenario and may
require the assistance of your MIS administrator. Refer to “Creating a Private
Network Service Provider Profile”, which includes suggestions for configuring the
Advanced dial-in parameters, for more information.
Once you have chosen a dial-in scenario that best fits your dial-in criteria, you are
ready to configure the server-side LAN Modem for dial-in access. Refer to “Part I.
Configuring the Server-side Dual 56K LAN Modem for Dial-in Support” or
“Creating a Private Network Service Provider Profile” to manually create or further
define dial-in users.
Site A
LAN Modem
Site B
LAN Modem
192.168.2.1192.168.1.1
192.168.1.1 192.168.1.1
The called LAN Modem
acts as DNS server to perform
workstation name-to-IP address
resolution for this call
The called LAN Modem
issues its own IP address
as WAN IP address for this call.
Public telephone
network
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192.168.1.4
192.168.1.5
192.168.2.2
192.168.2.3
192.168.2.4
192.168.2.5
OfficeConnect
Dual 56K LAN Modem
Analog router
(other than LAN Modem)
192.168.1.1
192.168.1.2
100.101.102.2
100.101.102.3
100.101.102.4
100.101.102.5
192.168.1.3
192.168.1.4
192.168.1.5
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100.101.102.1
