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Configuring IP Security Services

1-2

304111-A Rev 00

Supported Routers

Bay Networks IP technologies are implemented on BayRS router interfaces

supporting synchronous communications.

IPsec can provide encryption and authentication services to any serial interface on

the following routers:

•BayStack

™

Access Node (AN

)

• BayStack Advanced Remote Node

™

(ARN

™

)

• Backbone Node (BN

)

• System 5000

™

modules

Supported WAN Protocols

The supported WAN protocols are PPP and frame relay. Bay Networks dial

services are also supported. Dial services provide backup and demand services for

PPP and frame relay.

IPsec Protection

IPsec protection is implemented by making a router module interface a security

gateway. The router interface is secured with inbound and outbound security

policies that filter traffic to and from the router module. The data packets,

themselves, are protected with security associations (SAs). For information about

security gateways, see “Security Gateway” on page 2-2; for information about

inbound and outbound policies, see “IPsec Policies” on page 2-4; and for

information about security associations, see “Security Associations” on page 2-6.

Figure 1-1 shows how IPsec can protect data communications within an enterprise

and from external hosts.

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Avaya Configuring Integrated IP Security Manuale Utente Pagina 20