Building a network:
Go to Start / Settings / Control Panel / Network.
Click ADD, choose Adapter, then choose your adapter from the list.
Click ADD, choose protocol, then choose IPX/SPX and NetBEUI.
Click ADD, choose Service, then choose Client for Microsoft Networks under Microsoft. If this is not set up as your primary logon, then use the drop down list to choose it as your primary logon.
Be sure that each computer on the network is using the same protocols and is set for Client for Microsoft Networks.
Click on the Identification tab. All computers on the network must have the same Workgroup name. Each must have a different login and computer name.
Click on File and Printer Sharing. Enable both.
To make any directory shared for the network, go to Windows Explorer and right-click on the directory name. Choose Shared. If you don’t want others to be able to manipulate the files, choose Read Only too.
To accommodate this LAN extension interface architecture, a new
Network Control Protocol (NCP) for PPP exists. This NCP is called
PPP-LEX. The basic functionality of PPP-LEX is to encapsulate LAN
extension interface control and data packets. The IETF has assigned
two new protocol types for these functions, as shown in Table 1.
Table 1 IETF Protocol Types for PPP-LEX
Protocol Type Function
0x8041 Encapsulates control packets
0x0041 Encapsulates data packets (MAC frames)
PPP is a natural choice for a LAN extension interface protocol
because it allows for negotiating a specific control protocol and
options at connection time. This means that network administrators do
not have to statically configure the router interface for remote
interfaces. Rather, remote interfaces negotiate the link at
connection time.
The LAN extension interface protocol employs PPP link operation as
described in RFC 1331(-> 1548(-> 1661std51)), which reads as follows:
In order to establish communications of a point-to-point link,
each end of the PPP link must first send [Link Control Protocol]
LCP packets to configure and test the data link. After the link
has been established,the peer may be authenticated. Then PPP must
send NCP packets to choose and configure one or more network layer
protocols. Once each of the chosen network-layer protocols has
been configured, datagrams from each network layer protocol can be
sent over the link.
The link will remain configured for communications until explicit
LCP or NCP packets close the link down, or until some external
event occurs (an inactivity timer expires or network administrator
intervention). (References, [1])
Thus, the LAN extension interface unit and the host router exchange
PPP-LCP packets at connection time to dynamically configure and test
the WAN serial link. Once the link reaches an "opened" state, the LAN
extension interface unit and host router exchange PPP-LEX NCP packets
to configure the LAN extension interface protocol. Once it is
configured, the NCP (PPP-LEX) reaches an "opened" state, and PPP
carries the PPP-LEX control and data packets across the serial link.
At this point, link traffic is a any combination of LCPs, PPP-LEX
NCPs, PPP-LEX control packets, and PPP-LEX data packets.
2006-06-12 00:57:48
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answer #1
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answered by Sean I.T ? 7
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