Enterasys Networks X-PeditionTM PPP Point-to-Multipoint Configuration, Dial on Demand Topology

Configuring DoD/BoD

Figure 10-11 Dial on Demand Topology

IP address 10.10.10.1

phone# 2300

Node A	ISDN
[XSR]

Node B

[XSR]

Node C

[XSR]

Node D

[XSR]

	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

Note: Configuration commands preceded by exclamation points are optional.

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

10-24 Configuring Dialer Services