When would you need this: When you are creating a WAN link. And also when the other end of a WAN link is NOT a Cisco router. Point-to-Point Protocol can be used in synchronous, asynchoronous, HSSI, and ISDN links.
Special Requirements: None.
When would you need this: When you are creating a WAN link. And also when the other end of a WAN link is NOT a Cisco router. Point-to-Point Protocol can be used in synchronous, asynchoronous, HSSI, and ISDN links.
Special Requirements: None.
When would you need this: When you are using ISDN links between more than two nodes.
Special Requirements: The router should have ISDN interface(s).
When would you need this: When you have ISDN WAN link and you want the router to use it.
Special Requirements: The router should have BRI interface(s).