227 lines
4.4 KiB
HTML
227 lines
4.4 KiB
HTML
<HTML
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><HEAD
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><TITLE
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>Getting the Information you need about the PPP server</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.52"><LINK
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REL="HOME"
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TITLE="Linux PPP HOWTO"
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HREF="index.html"><LINK
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REL="PREVIOUS"
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TITLE="General kernel config considerations for PPP"
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HREF="x686.html"><LINK
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REL="NEXT"
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TITLE="Configuring your modem and serial port"
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HREF="modem.html"></HEAD
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><BODY
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CLASS="CHAPTER"
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BGCOLOR="#FFFFFF"
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ALIGN="center"
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><A
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HREF="http://www.linuxports.com/howto/ppp"
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TARGET="_top"
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>Linux PPP HOWTO</A
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></TH
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WIDTH="10%"
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>Next</A
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><DIV
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CLASS="CHAPTER"
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><H1
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><A
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NAME="SERVER-INFO"
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>Chapter 11. Getting the Information you need about the PPP server</A
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></H1
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><P
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>Before you can establish a PPP connection with a server, you need to
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obtain the following information (from the sysadmin/user support people
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of the PPP server):-
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<P
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></P
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><UL
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><LI
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><P
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>The telephone number(s) to dial for the service
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If you are behind a PABX. You also need the PABX number that gives you
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an outside dial tone - this is frequently digit zero (0) or nine (9). </P
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></LI
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><LI
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><P
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> Does the server use DYNAMIC or STATIC IP numbers?
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If the server uses STATIC IP numbers, then you may need to know what IP
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number to use for your end of the PPP connection. If your ISP is
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providing you with a subnet of valid IP numbers, you will need to know
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the IP numbers you can use and the network mask (netmask).
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Most Internet Service Providers use DYNAMIC IP numbers. As mentioned
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above, this has some implications in terms of the services you can
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use.
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However, even if you are using STATIC IP numbers, most PPP servers will
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never (for security reasons) allow the client to specify an IP number as
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this is a security risk. You <I
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CLASS="EMPHASIS"
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>do</I
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> still need to know this information! </P
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></LI
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><LI
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><P
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>What are the IP numbers of the ISPs Domain Name Servers?
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There should be at least two, although only one is needed.
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There could be a problem here. The MS Windows 95 PPP setup allows the
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DNS address to be passed to the client as part of its connection
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process. So your ISP (or corporate help desk) may well tell you you
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don't need the IP address of the DNS server(s).
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For Linux, you <I
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CLASS="EMPHASIS"
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>DO</I
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> need the address of at least one DNS. The linux
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implementation of PPP does not allow the setting of the DNS IP number
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dynamically at connection time - and quite possibly will never do
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so.
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<I
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CLASS="EMPHASIS"
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>Note</I
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>: whilst Linux (as a PPP client) cannot accept the DNS address
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from a server, it can, when acting as a server, pass this information to
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clients using the <TT
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CLASS="LITERAL"
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>dns-addr</TT
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> pppd option. </P
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></LI
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><LI
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><P
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>Does the server require the use of PAP/CHAP?
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If this is the case you need to know the "id" and "secret" you are to
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use in connecting. (These are probably your user name and
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password at your ISP). </P
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></LI
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><LI
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><P
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>Does the server automatically start PPP, or do you need to issue any
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commands to start PPP on the server once you are logged in?
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If you must issue a command to start PPP, what is it? </P
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></LI
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><LI
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><P
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>Is the server a Microsoft Windows NT system and, if so, is it
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using the MS PAP/CHAP system?
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Many corporate LANs seem to use MS Windows NT this way for increased security.</P
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></LI
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></UL
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> </P
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><P
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>Carefully note down this information - you are going to use it!</P
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></DIV
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><DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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><A
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HREF="x686.html"
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>Prev</A
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></TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="index.html"
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>Home</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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><A
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HREF="modem.html"
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>Next</A
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></TD
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></TR
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><TR
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><TD
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WIDTH="33%"
|
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ALIGN="left"
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VALIGN="top"
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>General kernel config considerations for PPP</TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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> </TD
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><TD
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WIDTH="33%"
|
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ALIGN="right"
|
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VALIGN="top"
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>Configuring your modem and serial port</TD
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></TR
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></TABLE
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></DIV
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></BODY
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></HTML
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> |