View source for Cisco DSL Router Configuration and Troubleshooting Guide - Step-by-Step Configuration of PPPoE with a Dynamic IP Address






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<H2 CLASS="western" STYLE="font-variant: normal; font-style: normal"><A NAME="intro"></A>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif">Introduction</FONT></FONT></H2>
<P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Your
Internet Service Provider (ISP) has assigned a dynamic public IP
address to your Cisco Digital Subscriber Line (DSL) Router.</FONT></FONT></FONT></P>
<H2 CLASS="western" STYLE="font-variant: normal; font-style: normal"><A NAME="prereq"></A>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif">Prerequisites</FONT></FONT></H2>
<H3 CLASS="western" STYLE="font-variant: normal; font-style: normal"><A NAME="req"></A>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif">Requirements</FONT></FONT></H3>
<P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">There
are no specific requirements for this document.</FONT></FONT></FONT></P>
<H3 CLASS="western" STYLE="font-variant: normal; font-style: normal"><A NAME="hw"></A>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif">Components
Used</FONT></FONT></H3>
<P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">This
document is not restricted to specific software and hardware
versions.</FONT></FONT></FONT></P>
<H3 CLASS="western" STYLE="font-variant: normal; font-style: normal"><A NAME="conv"></A>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif">Conventions</FONT></FONT></H3>
<P><SPAN STYLE="font-variant: normal"><FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size:
 9pt"><SPAN STYLE="font-style: normal"><SPAN STYLE="font-weight: normal">Refer
to&nbsp;</SPAN></SPAN></FONT></FONT></FONT></SPAN><A HREF="http://www.cisco.com/en/US/tech/tk801/tk36/technologies_tech_note09186a00
80121ac5.shtml" ONCLICK="s_objectID=&quot;http://www.cisco.com/en/US/tech/tk801/tk36/technologies_tech_note09186a0080121ac5.shtml_1&
quot;;return this.s_oc?this.s_oc(e):true"><SPAN STYLE="font-variant: normal"><FONT COLOR="#003399"><SPAN STYLE="text-decoration: non
e"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=1 STYLE="font-size: 8pt"><SPAN STYLE="font-style: normal"><SPAN STYLE="font-
weight: normal">Cisco
Technical Tips Conventions</SPAN></SPAN></FONT></FONT></SPAN></FONT></SPAN></A><SPAN STYLE="font-variant: normal"><FONT COLOR="#0000
00"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt"><SPAN STYLE="font-style: normal"><SPAN STYLE="font
-weight: normal">&nbsp;for
more information on document conventions.</SPAN></SPAN></FONT></FONT></FONT></SPAN></P>
<H2 CLASS="western" STYLE="font-variant: normal; font-style: normal"><A NAME="maintask1"></A>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif">Configuration
Procedures</FONT></FONT></H2>
<P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt"><B>Important:</B>&nbsp;Before
you begin, close all programs on the PC that might be monitoring your
COM port. Devices such as PDAs and digital cameras often place
programs in the system tray that render your COM port unusable for
the configuration of your Cisco DSL Router.</FONT></FONT></FONT></P>
<H3 CLASS="western" STYLE="font-variant: normal; font-style: normal"><A NAME="c1"></A>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif">Connect
the Cisco DSL Router and Your PC</FONT></FONT></H3>
<P><SPAN STYLE="font-variant: normal"><FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size:
 9pt"><SPAN STYLE="font-style: normal"><SPAN STYLE="font-weight: normal">A
console connection is made with a rolled cable and connects the
console port of the Cisco DSL Router to a COM port on a PC. The
console cable that is included with the Cisco DSL Router is a flat
light blue cable. For more information on the pinouts of a rolled
cable, or the pinouts of an RJ-45 to DB9 converter, refer to&nbsp;</SPAN></SPAN></FONT></FONT></FONT></SPAN><A HREF="http://www.cisc
o.com/en/US/products/hw/routers/ps332/products_tech_note09186a0080094ce6.shtml" ONCLICK="s_objectID=&quot;http://www.cisco.com/en/US
/products/hw/routers/ps332/products_tech_note09186a0080094ce6.shtml_1&quot;;return this.s_oc?this.s_oc(e):true"><SPAN STYLE="font-va
riant: normal"><FONT COLOR="#003399"><SPAN STYLE="text-decoration: none"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=1 STYL
E="font-size: 8pt"><SPAN STYLE="font-style: normal"><SPAN STYLE="font-weight: normal">Cabling
Guide for Console and AUX Ports</SPAN></SPAN></FONT></FONT></SPAN></FONT></SPAN></A><SPAN STYLE="font-variant: normal"><FONT COLOR="
#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt"><SPAN STYLE="font-style: normal"><SPAN STYLE=
"font-weight: normal">.</SPAN></SPAN></FONT></FONT></FONT></SPAN></P>
<OL>
        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Connect
        the RJ-45 connector on one end of a Cisco console cable to the
        console port of the Cisco DSL Router.</FONT></FONT></FONT></P>
        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Connect
        the RJ-45 connector at the other end of the console cable to an
        RJ-45 to DB9 converter.</FONT></FONT></FONT></P>
        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Connect
        the DB9 connector to an open COM port on your PC.</FONT></FONT></FONT></P>
</OL>
<H3 CLASS="western" STYLE="font-variant: normal; font-style: normal"><A NAME="c2"></A>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif">Start
and Set Up HyperTerminal</FONT></FONT></H3>
<P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Complete
these steps:</FONT></FONT></FONT></P>
<OL>
        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Start
        the HyperTerminal program on the PC.</FONT></FONT></FONT></P>
        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Set
        up your HyperTerminal session.</FONT></FONT></FONT></P>
        <OL TYPE=a>
                <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
                <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Assign
                a name to your session and click&nbsp;<B>OK</B>.</FONT></FONT></FONT></P>
                <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
                <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">In
                the Connect To window, click&nbsp;<B>Cancel</B>.</FONT></FONT></FONT></P>
                <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
                <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Choose&nbsp;<B>F
ile
                &gt; Properties</B>.</FONT></FONT></FONT></P>
                <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
                <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">From
                the Properties window, go to the Connect Using list and select the
                COM port where you connect the DB9 end of the console cable.</FONT></FONT></FONT></P>
                <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
                <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">From
                the Properties window click&nbsp;<B>Configure</B>&nbsp;and fill in
                these values:</FONT></FONT></FONT></P>
                <UL>
                        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
                        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Bits
                        per second:&nbsp;<B>9600</B></FONT></FONT></FONT></P>
                        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
                        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Data
                        bits:&nbsp;<B>8</B></FONT></FONT></FONT></P>
                        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
                        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Parity:&
nbsp;<B>None</B></FONT></FONT></FONT></P>
                        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
                        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Stop
                        bits:&nbsp;<B>1</B></FONT></FONT></FONT></P>
                        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
                        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Flow
                        Control:&nbsp;<B>None</B></FONT></FONT></FONT></P>
                </UL>
                <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
                <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Click&nbsp;<B>OK
</B>.</FONT></FONT></FONT></P>
                <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
                <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">From
                the Call menu, click&nbsp;<B>Disconnect</B>.</FONT></FONT></FONT></P>
                <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
                <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">From
                the Call menu, click&nbsp;<B>Call</B>.</FONT></FONT></FONT></P>
                <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
                <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Press&nbsp;<B>En
ter</B>&nbsp;until
                you see a router prompt on your HyperTerminal window.</FONT></FONT></FONT></P>
        </OL>
</OL>
<H3 CLASS="western" STYLE="font-variant: normal; font-style: normal"><A NAME="c3"></A>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif">Clear
Existing Configurations on the Cisco DSL Router</FONT></FONT></H3>
<P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Complete
these steps:</FONT></FONT></FONT></P>
<OL>
        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Type&nbsp;<B>enable</B>&
nbsp;at
        the router prompt in order to enter privileged mode.</FONT></FONT></FONT></P>
        <PRE CLASS="western" STYLE="margin-right: 0.39in; font-variant: normal; font-style: normal; font-weight: normal"><FONT COLOR
="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router&gt;<B>enable</B></FONT></FONT></FON
T>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router#</FONT></FONT></FONT>

<FONT COLOR="#0000ff"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt"><I>!--- The # symbol indicates 
that you are in privileged mode.</I></FONT></FONT></FONT>
</PRE>
        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Clear
        existing configurations on the router.</FONT></FONT></FONT></P>
        <PRE CLASS="western" STYLE="margin-right: 0.39in; margin-bottom: 0.2in; font-variant: normal; font-style: normal; font-weigh
t: normal"><FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router#<B>write eras
e</B></FONT></FONT></FONT></PRE>
        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Reload
        the router so that it boots with a blank startup configuration.</FONT></FONT></FONT></P>
        <PRE CLASS="western" STYLE="margin-right: 0.39in; font-variant: normal; font-style: normal; font-weight: normal"><FONT COLOR
="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router#<B>reload</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">System configuration has been m
odified. Save? [yes/no]:<B>no</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Proceed with reload? [confirm]<
B>yes</B></FONT></FONT></FONT>

<FONT COLOR="#0000ff"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt"><I>!--- The router reload can t
ake a few minutes.</I></FONT></FONT></FONT>
</PRE>
        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">After
        the router has reloaded, enter enable mode again.</FONT></FONT></FONT></P>
        <PRE CLASS="western" STYLE="margin-right: 0.39in; font-variant: normal; font-style: normal; font-weight: normal"><FONT COLOR
="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router&gt;<B>enable</B></FONT></FONT></FON
T>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router#</FONT></FONT></FONT></P
RE>
</OL>
<H3 CLASS="western" STYLE="font-variant: normal; font-style: normal"><A NAME="c4"></A>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif">Configure
the Cisco DSL Router</FONT></FONT></H3>
<P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Complete
these steps.</FONT></FONT></FONT></P>
<OL>
        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Configure&nbsp;<B>servic
e
        timestamp</B>&nbsp;to properly log and display&nbsp;<B>debug</B>&nbsp;output
        in the troubleshooting section.</FONT></FONT></FONT></P>
        <PRE CLASS="western" STYLE="margin-right: 0.39in; font-variant: normal; font-style: normal; font-weight: normal"><FONT COLOR
="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router#<B>configure terminal</B></FONT></F
ONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>service times
tamps debug datetime msec</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>service times
tamps log datetime msec</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>end</B></FONT
></FONT></FONT></PRE>
        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Disable
        the logging console on your Cisco DSL Router in order to suppress
        console messages that might be triggered while you configure the
        router.</FONT></FONT></FONT></P>
        <PRE CLASS="western" STYLE="margin-right: 0.39in; font-variant: normal; font-style: normal; font-weight: normal"><FONT COLOR
="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router#<B>configure terminal</B></FONT></F
ONT></FONT>
<FONT COLOR="#000000">      <FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt"><SPAN STYLE="font-style: 
normal"><SPAN STYLE="font-weight: normal">Router(config)#</SPAN></SPAN></FONT></FONT><FONT FACE="arial, helvetica, sans-serif"><FONT
 SIZE=3 STYLE="font-size: 11pt"><SPAN STYLE="font-style: normal"><B>no logging console</B></SPAN></FONT></FONT></FONT>
<FONT COLOR="#000000">      <FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt"><SPAN STYLE="font-style: 
normal"><SPAN STYLE="font-weight: normal">Router(config)#</SPAN></SPAN></FONT></FONT><FONT FACE="arial, helvetica, sans-serif"><FONT
 SIZE=3 STYLE="font-size: 11pt"><SPAN STYLE="font-style: normal"><B>end</B></SPAN></FONT></FONT></FONT></PRE>
        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Configure&nbsp;<B>ip
        routing</B>,&nbsp;<B>ip subnet-zero</B>, and&nbsp;<B>ip classless</B>&nbsp;in
        order to provide flexibility in routing configuration options.</FONT></FONT></FONT></P>
        <PRE CLASS="western" STYLE="margin-right: 0.39in; font-variant: normal; font-style: normal; font-weight: normal"><FONT COLOR
="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router#<B>configure terminal</B></FONT></F
ONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>ip routing</B
></FONT></FONT></FONT>

<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>ip subnet-zer
o</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>ip classless<
/B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>end</B></FONT
></FONT></FONT></PRE>
        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Configure
        global Point-to-Point Protocol over Ethernet (PPPoE) parameters.</FONT></FONT></FONT></P>
        <PRE CLASS="western" STYLE="margin-right: 0.39in; font-variant: normal; font-style: normal; font-weight: normal"><FONT COLOR
="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router#<B>configure terminal</B></FONT></F
ONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>vpdn enable</
B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>no vpdn loggi
ng</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>vpdn-group pp
poe</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-vpdn)#<B>request-
dialin</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-vpdn-req-in)#<B>p
rotocol pppoe</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-vpdn-req-in)#<B>e
nd</B></FONT></FONT></FONT></PRE>
        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Configure
        an IP address and subnet mask on the Cisco DSL Router Ethernet
        interface.</FONT></FONT></FONT></P>
        <P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt"><B>For
        Network Address Translation (NAT):</B>&nbsp;(Optional) Enable NAT
        inside on the Ethernet interface.</FONT></FONT></FONT></P>
        <PRE CLASS="western" STYLE="margin-right: 0.39in; font-variant: normal; font-style: normal; font-weight: normal"><FONT COLOR
="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router#<B>configure terminal</B></FONT></F
ONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>interface eth
ernet 0</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-if)#<B>ip tcp adj
ust-mss 1452</B></FONT></FONT></FONT>

<FONT COLOR="#0000ff"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt"><I>!--- If the <B>ip tcp adjust
-mss 1452</B> command is not supported, try </I></FONT></FONT></FONT>
<FONT COLOR="#0000ff"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt"><I>!--- <B>ip adjust-mss 1452</
B>. If this command is not supported, </I></FONT></FONT></FONT>
<FONT COLOR="#0000ff"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt"><I>!--- upgrade to the latest C
isco DSL Router software or follow the </I></FONT></FONT></FONT>
<SPAN STYLE="font-variant: normal"><FONT COLOR="#0000ff"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11
pt"><I><SPAN STYLE="font-weight: normal">!--- procedure in the </SPAN></I></FONT></FONT></FONT></SPAN><A HREF="http://www.cisco.com/
en/US/tech/tk175/tk15/technologies_configuration_example09186a008071a6c3.shtml#poss" ONCLICK="s_objectID=&quot;http://www.cisco.com/
en/US/tech/tk175/tk15/technologies_configuration_example09186a008071a6c3.sht_2&quot;;return this.s_oc?this.s_oc(e):true"><SPAN STYLE
="font-variant: normal"><FONT COLOR="#003399"><SPAN STYLE="text-decoration: none"><FONT FACE="arial, helvetica, sans-serif"><FONT SI
ZE=1 STYLE="font-size: 8pt"><I><SPAN STYLE="font-weight: normal">Possible Required Configuration Steps on the PC</SPAN></I></FONT></
FONT></SPAN></FONT></SPAN></A><SPAN STYLE="font-variant: normal"><FONT COLOR="#0000ff"><FONT FACE="arial, helvetica, sans-serif"><FO
NT SIZE=3 STYLE="font-size: 11pt"><I><SPAN STYLE="font-weight: normal">.</SPAN></I></FONT></FONT></FONT></SPAN>

<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-if)#<B>ip address
 &lt;ip address&gt; &lt;subnet mask&gt;</B></FONT></FONT></FONT>

<FONT COLOR="#0000ff"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt"><I>!--- For NAT:</I></FONT></FO
NT></FONT>

<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-if)#<B>ip nat ins
ide</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-if)#<B>no shut</B
></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-if)#<B>end</B></F
ONT></FONT></FONT></PRE>
        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Configure
        the ATM interface of your Cisco DSL Router with an ATM permanent
        virtual circuit (PVC), encapsulation type, and Dialer pool.</FONT></FONT></FONT></P>
        <PRE CLASS="western" STYLE="margin-right: 0.39in; font-variant: normal; font-style: normal; font-weight: normal"><FONT COLOR
="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router#<B>configure terminal</B></FONT></F
ONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>interface atm
 0</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-if)#<B>pvc &lt;vp
i/vci&gt;</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-if-atm-vc)#<B>ppp
oe-client dial-pool-number 1</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-if-atm-vc)#<B>no 
shut</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-if-atm-vc)#<B>end
</B></FONT></FONT></FONT></PRE>
        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Configure
        the Dialer interface of your Cisco DSL Router for Point-to-Point
        Protocol over ATM (PPPoA) in order to enable a dynamic IP address to
        be assigned.</FONT></FONT></FONT></P>
        <P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt"><B>For
        NAT:&nbsp;</B>(Optional) Enable NAT outside on the Dialer interface.</FONT></FONT></FONT></P>
        <PRE CLASS="western" STYLE="margin-right: 0.39in; font-variant: normal; font-style: normal; font-weight: normal"><FONT COLOR
="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router#<B>configure terminal</B></FONT></F
ONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>interface dia
ler 1</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-if)#<B>ip address
 negotiated</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-if)#<B>mtu 1492</
B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-if)#<B>no ip dire
cted-broadcast</B></FONT></FONT></FONT>

<FONT COLOR="#0000ff"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt"><I>!--- For NAT:</I></FONT></FO
NT></FONT>
<FONT COLOR="#000000"> </FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-if)#<B>ip nat out
side</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-if)#<B>encapsulat
ion ppp</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-if)#<B>dialer poo
l 1</B>  </FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-if)#<B>ppp chap h
ostname &lt;username&gt;</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-if)#<B>ppp chap p
assword &lt;password&gt;</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-if)#<B>ppp pap se
nt-username &lt;username&gt; password &lt;password&gt;</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config-if)#<B>end</B></F
ONT></FONT></FONT></PRE>
        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Configure
        a default route using Dialer1 as the outbound interface.</FONT></FONT></FONT></P>
        <PRE CLASS="western" STYLE="margin-right: 0.39in; font-variant: normal; font-style: normal; font-weight: normal"><FONT COLOR
="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router#<B>configure terminal</B></FONT></F
ONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>ip route 0.0.
0.0 0.0.0.0 dialer1</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>end</B></FONT
></FONT></FONT></PRE>
        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt"><B>For
        NAT:</B>&nbsp;Configure global NAT commands on the Cisco DSL Router
        to allow sharing of the dynamic public IP address of the Dialer
        interface.</FONT></FONT></FONT></P>
        <PRE CLASS="western" STYLE="margin-right: 0.39in; font-variant: normal; font-style: normal; font-weight: normal"><FONT COLOR
="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router#<B>configure terminal</B></FONT></F
ONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>ip nat inside
 source list 1 interface dialer1 overload</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>access-list 1
 permit &lt;ip network address of ethernet0&gt; </B></FONT></FONT></FONT>
<FONT COLOR="#000000"> <FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt"><SPAN STYLE="font-style: norma
l"><B>&lt;wildcard mask&gt;</B></SPAN></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>end</B></FONT
></FONT></FONT></PRE><P STYLE="font-variant: normal; font-style: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt"><B>Optional
        Configurations</B></FONT></FONT></FONT></P>
        <P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">NAT
        Pool, if additional IP addresses have been provided by your ISP.</FONT></FONT></FONT></P>
        <PRE CLASS="western" STYLE="margin-right: 0.39in; font-variant: normal; font-style: normal; font-weight: normal"><FONT COLOR
="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>ip nat inside source lis
t 1 interface dialer1 overload </B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>ip nat pool &
lt;nat pool name&gt; &lt;first ip address&gt; </B></FONT></FONT></FONT>
<FONT COLOR="#000000"> <FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt"><SPAN STYLE="font-style: norma
l"><B>&lt;last ip address&gt; netmask &lt;subnet mask&gt;</B></SPAN></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>end</B></FONT
></FONT></FONT></PRE><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Static
        NAT, if Internet users require access to internal servers.</FONT></FONT></FONT></P>
        <PRE CLASS="western" STYLE="margin-right: 0.39in; font-variant: normal; font-style: normal; font-weight: normal"><FONT COLOR
="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>ip nat inside source sta
tic tcp &lt;inside ip address of server&gt;</B> </FONT></FONT></FONT>
<FONT COLOR="#000000"> <FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt"><SPAN STYLE="font-style: norma
l"><B>{80 or 25} &lt;outside well-known ip address of server&gt; {80 or 25} extendable</B></SPAN></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>end</B></FONT
></FONT></FONT></PRE>
        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt"><B>For
        Dynamic Host Configuration Protocol (DHCP):</B>&nbsp;(Optional)
        Configure the Cisco DSL Router as a DHCP server with a pool of IP
        addresses to assign to hosts connected to the Ethernet interface of
        the Cisco DSL Router. The DHCP server dynamically assigns an IP
        address, Domain Name Server (DNS), and the default gateway IP
        address to your hosts.</FONT></FONT></FONT></P>
        <PRE CLASS="western" STYLE="margin-right: 0.39in; font-variant: normal; font-style: normal; font-weight: normal"><FONT COLOR
="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router#<B>configure terminal</B></FONT></F
ONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>ip dhcp exclu
ded-address &lt;ip address of ethernet0&gt;</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>ip dhcp pool 
&lt;dhcp pool name&gt;</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(dhcp-config)#<B>network 
&lt;ip network address of ethernet0&gt; &lt;subnet mask&gt;</B>  </FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(dhcp-config)#<B>default-
router &lt;ip address of ethernet0&gt; </B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(dhcp-config)#<B>dns-serv
er &lt;ip address of primary dns server&gt; </B></FONT></FONT></FONT>
<FONT COLOR="#000000"> <FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt"><SPAN STYLE="font-style: norma
l"><B>&lt;ip address of secondary dns server&gt;</B></SPAN></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(dhcp-config)#<B>end</B><
/FONT></FONT></FONT></PRE>
        <LI><P STYLE="font-variant: normal; font-style: normal; font-weight: normal">
        <FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=2 STYLE="font-size: 9pt">Enable
        the logging console on the Cisco DSL Router, and write all the
        changes to memory.</FONT></FONT></FONT></P>
        <PRE CLASS="western" STYLE="margin-right: 0.39in; font-variant: normal; font-style: normal; font-weight: normal"><FONT COLOR
="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router#<B>configure terminal</B></FONT></F
ONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>logging conso
le</B></FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router(config)#<B>end</B></FONT
></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">*Jan 1 00:00:00.100: %SYS-5-CON
FIG_I: Configured from console by console</FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router#<B>write memory</B></FON
T></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Building configuration... [OK]<
/FONT></FONT></FONT>
<FONT COLOR="#000000"><FONT FACE="arial, helvetica, sans-serif"><FONT SIZE=3 STYLE="font-size: 11pt">Router#</FONT></FONT></FONT></P
RE>
</OL>
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</H3>
<P STYLE="margin-bottom: 0in"><BR>
</P>
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