Re: PPPoE PROBLEM OVER ATM ON 7200......12.1(5)T5

From: Siva Valliappan (svalliap@cisco.com)
Date: Sat Mar 24 2001 - 18:38:03 EST


sorry i didn't reply to earlier e-mails on this thread. been caught up
on a number of issues. we need to eliminate if this problem is a switching
issue on the router, or a problem with the routes on the end host.
can you do the following:

a) ping from the win 95 client to the ATM interface
   (we already know it works, but just to prove connectivity is up as we
    test)

b) ping the lan interface ip of the 7200 from the client

   if we fail, then we know the end device probably doesn't have the
   correct default gateway or has incorrect routes.

   if we succeed, proceed to step (c)

c) ping some other device off the local lan of the 7200.

   if we succeed then we know there is no switching problem on the 7200,
   and it's unlikely to be a routing issue on the client, so we will
   need to proceed further out on the problem.

   if we fail, verify that the device being pinged knows how to get back to
   the win '95 box.

   in event of failure, one test to do is to do a ping with options
   (e.g. record route). if that succeeds, it's likely to be a interrupt
   level switching issue on the router.

btw i would urge you to open a TAC case if possible as the TAC engineers
are experienced with working on such type of problems, and will be able
to help you.

regards
.siva

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> Dear All,
> I am runinng PPPoE over ATM on 7200. After making the configuration on =
> my router for a vpdn and virtual template for pppoe protocol support I =
> make a win98 client to connect via ADSL. The client is able to connect =
> and get authenticated. It also receives a IP address from my pool of IP. =
> The win98 client can ping my router and my router can ping the client =
> but the client cannot ping any of my IP like DNS or proxies and it =
> cannot even go on internet.=20
> Do I have to configure some routing.
> Or I have to make a seperate pool of ip for ppp and pppoe do some =
> routing associated with it.
> I am runinng cisco ios Version 12.1(5)T5
> Here is my configuration
>
> vpdn-group 2
> accept-dialin
> protocol pppoe
> virtual-template 2 =20
>
> interface ATM3/0.17 point-to-point
> pvc 6/100
> encapsulation aal5snap
> protocol pppoe =20
>
> interface Virtual-Template2
> ip unnumbered FastEthernet0/0
> ip mtu 1492
> no ip route-cache cef
> peer default ip address pool default
> ppp authentication pap =20
>
>
> ADSL is a new concept here and there is hardly any support for it and we =
> are still under test phase for ADSL=20
>
> so please help
> best regards
> akber
>
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> <META http-equiv=3DContent-Type content=3D"text/html; =
> charset=3Diso-8859-1">
> <META content=3D"MSHTML 5.50.4030.2400" name=3DGENERATOR>
> <STYLE></STYLE>
> </HEAD>
> <BODY bgColor=3D#ffffff>
> <DIV><FONT face=3DArial size=3D2></FONT><FONT face=3DArial =
> size=3D2></FONT><BR>Dear=20
> All,</DIV>
> <DIV>I am runinng PPPoE over ATM on 7200. After making the configuration =
> on my=20
> router for a vpdn and virtual template for pppoe protocol support I make =
> a win98=20
> client to connect via ADSL. The client is able to connect and get =
> authenticated.=20
> It also receives a IP address from my pool of IP. The win98 client can =
> ping my=20
> router and my router can ping the client but the client cannot ping any =
> of my IP=20
> like DNS or proxies and it cannot even go on internet. </DIV>
> <DIV>Do I have to configure some routing.</DIV>
> <DIV>Or I have to make a seperate pool of ip for ppp and pppoe do some =
> routing=20
> associated with it.</DIV>
> <DIV>
> <DIV><FONT face=3DArial size=3D2>I am runinng cisco ios Version=20
> 12.1(5)T5</FONT></DIV>
> <DIV><FONT face=3DArial size=3D2>Here is my configuration</FONT></DIV>
> <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
> <DIV><FONT face=3DArial size=3D2>vpdn-group =
> 2<BR>&nbsp;accept-dialin<BR>&nbsp;=20
> protocol pppoe<BR>&nbsp; virtual-template 2&nbsp;&nbsp; </FONT></DIV>
> <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
> <DIV><FONT face=3DArial size=3D2>interface ATM3/0.17=20
> point-to-point<BR>&nbsp;pvc&nbsp; 6/100<BR>&nbsp; encapsulation=20
> aal5snap<BR>&nbsp; protocol=20
> pppoe&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
> </FONT></DIV>
> <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
> <DIV><FONT face=3DArial size=3D2>interface Virtual-Template2<BR>&nbsp;ip =
> unnumbered=20
> FastEthernet0/0<BR>&nbsp;ip mtu 1492<BR>&nbsp;no ip route-cache=20
> cef<BR>&nbsp;peer default ip address pool default<BR>&nbsp;ppp =
> authentication=20
> pap&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT></DIV>
> <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV></DIV>
> <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
> <DIV><FONT face=3DArial size=3D2>ADSL is a new concept here and there is =
> hardly any=20
> support for it and we are still under test phase for ADSL </FONT></DIV>
> <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
> <DIV><FONT face=3DArial size=3D2>so please help</FONT></DIV>
> <DIV><FONT face=3DArial size=3D2>best regards</FONT></DIV>
> <DIV><FONT face=3DArial size=3D2>akber</FONT></DIV></BODY></HTML>
>
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