CHAPTER 4: Configuration
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4.6.2 I
NTEGRATING THE
C
ONCENTRATOR
I
NTO A
S
TANDARD
IP N
ETWORK
The illustration below shows how to integrate your Remote Access Concentrator into a standard IP network.
Refer to this example as you set up your network, substituting your network’s specifics where applicable.
Below we describe the configuration needed for connectivity between devices. (In our example,
the “authentication database” and “authentication application” can be either CSM or RADIUS.)
Remote host 2.2.2.10 to local host 2.2.2.4:
Configure the remote host as a device in the authentication database. The device may be configured to
have a specific IP address, or an IP address from one of the authentication application’s IP-address pools.
Remote host 2.2.2.10 to device behind local router 3.3.3.1:
1. Configure the remote host as a device in the authentication database.
2. Enable RIP on the Concentrator and on Router 1 on the 2.2.2.x interface.
Remote host 2.2.2.10 to Internet through locally attached router:
1. Configure the remote host as a device in the authentication database.
2. Enable RIP on the Concentrator and on Router 2’s 2.2.2.x interface. Router 2
should have a default route to the Internet that it advertises to the Concentrator.
Remote host 2.2.2.10 to remote host 2.2.2.11:
Configure both remote hosts as devices in the authentication database.
Concentrator
Server
Running
CSM
Router 1
Router 2
Modem
Modem
2.2.2.10
2.2.2.11
4.4.4.1
2.2.2.1
2.2.2.4
2.2.2.5
2.2.2.6
2.2.2.7
2.2.2.2
2.2.2.3
3.3.3.1
Router 3
PSTN
Internet
