6-49
Cisco Router and Security Device Manager 2.5 User’s Guide
OL-4015-12
Chapter6 Edit Interface/Connection
Connection: ISDN BRI
Some service providers use SPIDs to define the services subscribed to by the
ISDN device that is accessing the ISDN service provider. The service provider
assigns the ISDN device one or more SPIDs when you first subscribe to the
service. If you are using a service provider that requires SPIDs, y our ISDN device
cannot place or receive calls until it sends a valid, assigned SPID to the service
provider when accessing the switch to initialize the connection.
Only the DMS-100 and NI switch types require SPIDs. The Lucent (AT&T) 5ESS
switch type may support a SPID, but we recommend that you set up that ISDN
service without SPIDs. In addition, SPIDs have significance at the local-access
ISDN interface only. Remote routers never receive the SPID.
A SPID is usually a seven-digit telephone number with some optional numbers.
However, service providers may use different numbering schemes. For the
DMS-100 switch type, two SPIDs are assigned, one for each B channel.
Remote Phone Number
Enter the phone number of the destination of the ISDN connection.
Options
Click if you need to associate ACLs with a dialer list to identify interesting traffic,
enter timer settings, or enable or disable multilink PPP.
Identifying interesting traffic will cause the router to dial out and create an active
connection only when the router detects interesting traffic.
Timer settings will cause the router to automatically disconnect a call after the
line is idle for the specified amount of time.
Multilink PPP can be configured to provide load balancing between ISDN B
channels.
IP Address
Choose Static IP address, IP Unnumbered, or IP Negotiated. If you choose
Specify an IP address, complete the fields below.
IP Address
Enter the IP address for this point-to-point subinterface. Obtain this value from
your network administrator or service provider. For more information, see IP
Addresses and Subnet Masks.