Enterasys Networks Security Router X-PeditionTM - Manual (Page 246)

Configuring DoD/BoD
10-24 Configuring Dialer Services
Figure 10-11 Dial on Demand Topology
PPP Point-to-Multipoint Configuration
In this configuration, only one of the peer nodes can initiate the setup of a switched link when
access-list defined data traffic is sent to the remote peer.
Node A (Calling Node) Configuration
The following commands add a dialer pool and dialer group, and set the Central Office switch
type on BRI port 1/0. The commands also configure Dialer interface 1 with spoofing enabled on
Node A’s network, and set calls out to Node B to terminate if the line is idle for 20 seconds.
XSR(config)#interface bri 1/0
XSR(config-if<BRI-1/0>)#isdn switch-type basic-net3
XSR(config-if<BRI-1/0>)#dialer pool-member 25
XSR(config-if<BRI-1/0>)#no shutdown
XSR(config)#interface dialer 1
XSR(config-if<D1>)#no shutdown
XSR(config-if<D1>)#dialer pool 25
XSR(config-if<D1>)#encapsulation ppp
XSR(config-if<D1>)#dialer idle-timeout 20
XSR(config-if<D1>)#dialer-group 3
XSR(config-if<D1>)#dialer map ip 10.10.10.2 2400
XSR(config-if<D1>)#ip address 10.10.10.1 255.255.255.0
The following optional commands can be entered to add a second, similarly configured, Dialer
interface to the dialer group:
! XSR(config)#interface dialer 2
! XSR(config-if<D2>)#no shutdown
! XSR(config-if<D2>)#dialer pool 25
! XSR(config-if<D2>)#encapsulation ppp
! XSR(config-if<D2>)#dialer idle-timeout 20
! XSR(config-if<D2>)#dialer-group 3
Note: Configuration commands preceded by exclamation points are optional.
Node A
[XSR]
.
Node D
[XSR]
Node C
[XSR]
Node B
[XSR]
ISDN
IP address 10.10.10.1
phone# 2300
IP address 10.10.10.2
IP address 20.20.20.2
phone# 2400
IP address 10.10.10.3
phone# 2500
IP address 10.10.10.4
IP address 20.20.20.4
phone# 2600