IBM SC30-3681-08 manual IPX Control Protocol, OSI Control Protocol, Appn HPR Control Protocol

Using PPP

The router automatically adds a static route directed to the PPP interface for the

address that is successfully negotiated, allowing data to be routed properly to the

dial-in client. When the IPv6CP connection is ended for any reason, this static route

is subsequently removed. By default, the pre®x length for this route is 128

(hostroute).

IPX Control Protocol

IPXCP is speci®ed in RFC 1552. IBM's implementation does not support any IPXCP

options.

OSI Control Protocol

OSICP is speci®ed in RFC 1377. IBM's implementation of OSICP does not support

any options.

APPN HPR Control Protocol

Advanced Peer-to-Peer Networking (APPN) High Performance Routing (HPR)

control protocol is speci®ed in RFC 2043. No options are negotiated for this control

protocol.

APPN ISR Control Protocol

Advanced Peer-to-Peer Networking (APPN) Intermediate Session Routing (ISR)

control protocol is speci®ed in RFC 2043. No options are negotiated for this control

protocol.

See ªOverview of Encryptionº inUsing and Con®guring Featuresfor information

about con®guring encryption for a PPP interface.

Using and Con®guring Virtual Connections

Virtual Connections (VC) are DIALs dial-in circuits that can be suspended when

they become inactive for a predetermined period of time. The ability to suspend the

connections can help control your networking costs by saving line charges for

DIALs dial-in clients that are not active; instead of keeping the connections active,

the system saves information about the session and then closes the call. When the

same DIALs dial-in client reconnects to the server, the session information is

restored and the connection resumes as if there were no interruption. See

ªCon®guring a VCº on page 464 for more information.

You can con®gure DIALs servers to end VCs that have been suspended for a

speci®ed amount of time. You can also manually end a VC at any time. See theset

DIALs command and ªDIALs Global Monitoring Commandsº inUsing and

Con®guring Featuresfor related commands.

VC Considerations

Keep the following in mind as you con®gure VCs:

v You can only use AAA local-list or RADIUS authentication when using VCs.

v A VC will not support IPX. When you con®gure a user to use VCs, IPX support

for that user is disabled.

Chapter 32. Using Point-to-Point Protocol Interfaces 463