Planning a Leased-Line Link
Note - PPP was removed in the Oracle Solaris 11.4 SRU 24 release.
Setting up a leased-line link involves configuring the peer at one end of a switched or unswitched service that is leased from a provider.
Planning information for a leased-line link
Explanation of the sample link that is shown in Example of a Leased-Line Configuration
This section includes the following information:
For an introduction to leased-line links, refer to Leased-Line PPP Overview. For tasks about setting up the leased line, see Setting Up a Leased-Line Point-to-Point Protocol Link.
Before You Set Up the Leased-Line Link
When your company rents a leased-line link from a network provider, you typically configure only the system at your end of the link. The peer at the other end of the link is maintained by another administrator. This individual might be a system administrator at a remote location in your company or a system administrator at an ISP.
Hardware That Is Needed for a Leased-Line Link
Synchronous interface for your system
Synchronous unit (CSU/DSU)
Your system
In addition to the link media, your end of the link requires the following hardware:
Some network providers include a router, synchronous interface, and a CSU/DSU as part of the customer premises equipment (CPE). However, necessary equipment varies, based on the provider and any governmental restrictions in your locale. The network provider can give you information about the unit that is needed, if this equipment is not provided with the leased line.
Information to Gather for the Leased-Line Link
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Device name of the interface – Refer to the interface card documentation.
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Configuration instructions for the synchronous interface card – Refer to the interface card documentation. You need this information to configure the HSI/P interface. You might not need to configure other types of interface cards.
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(Optional) IP address of the remote peer – Refer to the service provider documentation. Alternatively, contact the system administrator of the remote peer. This information is needed only if the IP address is not negotiated between the two peers.
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(Optional) Name of the remote peer – Refer to the service provider documentation. Alternatively, you can contact the system administrator of the remote peer.
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(Optional) Speed of the link – Refer to the service provider documentation. Alternatively, you can contact the system administrator of the remote peer.
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(Optional) Compression that is used by the remote peer – Refer to the service provider documentation. Alternatively, you can contact the system administrator of the remote peer.
Before you configure the local peer, you might need to gather the following items:
Example of a Configuration for a Leased-Line Link
The tasks in Setting Up a Leased-Line Point-to-Point Protocol Link show how to implement the goal of a medium-sized organization (LocalCorp) to provide Internet access for its employees. Currently, the employees' computers are connected on a private corporate intranet.
LocalCorp requires speedy transactions and access to the many resources on the Internet. The organization signs a contract with Far ISP, a service provider, which allows LocalCorp to set up its own leased line to Far ISP. Then, LocalCorp leases a T1 line from Phone East, a telephone company. Phone East puts in the leased line between LocalCorp and Far ISP. Then, Phone East provides a CSU/DSU that is already configured to LocalCorp.
LocalCorp has set up a system as a gateway router, which forwards packets over the leased line to hosts on the Internet.
Far ISP also has set up a peer as a router to which leased lines from customers are attached.
The tasks set up a leased-line link with the following characteristics.
Figure 6 Example of a Leased-Line Configuration
In the figure, a router is set up for PPP at LocalCorp. The router connects to the corporate Intranet through its hme0 interface. The second connection is through the system's HSI/P interface (hihp1) to the CSU/DSU digital unit. The CSU/DSU then connects to the installed leased line. The administrator at LocalCorp configures the HSI/P interface and PPP files. The administrator then types /etc/init.d/pppd to initiate the link between LocalCorp and Far ISP.
For More Information About Leased Lines
Refer to the following: