Avaya Configuring Dial Services Uživatelský manuál Strana 90

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Configuring Dial Services
5-6 114062 Rev. A
A router configured with demand circuit groups does not initiate connections for
the group; the remote side of the connection must place the call first.
Consequently, you do not need to configure the local PAP ID and password or
CHAP name and secret for a call request.
If, for added network security, each remote node has a unique PAP ID or CHAP
name and the same circuit group ID, the router verifies the caller’s name in the
incoming call setup message. If it does not match a name in the table, the router
disconnects the call.
Protocol Configuration for Demand Circuit Groups
You must configure a demand circuit group with one of the following unnumbered
protocols:
IP with either RIP, RIP II, or OSPF as the routing protocol
IPX with RIP, SAP, and/or NLSP as the routing protocol
Bridging
The protocol configuration applies to all circuits in the group and applies to a list
of remote nodes that can call the recovery router.
Without the use of specific network addresses, the recovery router must use
routing updates to determine the data path to the remote nodes. Unlike individual
demand circuits, you can enable routing protocols for a demand circuit group
without the update protocol establishing a switched connection unnecessarily. The
demand circuit group and its protocol interface are active only when the physical
connection is active. Without a physical line available, no circuit or protocol
information, for example, RIP update packets, pass from one router to the next.
Note: The caller resolution table may not contain both individual demand
circuit numbers and demand circuit group IDs for the same caller name.
Note: When you configure a protocol for a demand circuit group, Site
Manager requires that you also configure a routing protocol.
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