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<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=LV
style='font-size:10.0pt;font-family:Arial;color:navy'>UPDATE – callback itself
is working now. If user is meant to be called back – it is called back
succesfuly. Problems are with users who should not be called back –
normal dial-in users – if ‘ppp callback accept’ is configured
on group-async interface – problem arise, if that command isnt there –
non-callback users can call in, but callback isnt working. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=LV
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=LV
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=LV
style='font-size:10.0pt;font-family:Arial;color:navy'>If I try to call-in as non-callback
user, Windows says that „PPP Link Control Protocol was terminated by
remote side” and it says that I should enable LCP extensions (its done
and ON by default also) and try to allow unsecured password (what is also
allowed). <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=LV
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=LV
style='font-size:10.0pt;font-family:Arial;color:navy'>Any ideas where to go
next ?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=LV
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=LV
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=LV
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span lang=EN-US
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>
<st1:PersonName w:st="on"><st1:PersonName w:st="on">Andris</st1:PersonName>
Zarins</st1:PersonName> <br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, July 14, 2005 6:10
PM<br>
<b><span style='font-weight:bold'>To:</span></b> cisco-nas@puck.nether.net<br>
<b><span style='font-weight:bold'>Cc:</span></b> <st1:PersonName w:st="on"><st1:PersonName
w:st="on">Andris</st1:PersonName> Zarins</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> Asynchronous callback
problems</span></font><span lang=EN-US><o:p></o:p></span></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'>Hi all,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'>I’m trying to configure callback from 3640 (E1) to
WindowsXP PC (async line). There are several types of users callin to that NAS
– Cisco routers using ISDN, async modem users who shouldnt be called
back, and now there should be async modem users who should be called back. This
is why I need per user AAA what is done using RADIUS. Below is RADIUS profile
configuration. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'>NAS (3640) has numerous mica-midems installed. Dial-in
without callback is working fine, as AAA is done using RADIUS server, so configuration
for vaccess interfaces comes also from vtemplate + RADIUS part. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'>Here is configuration from NAS:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'>interface Group-Async1<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'> description Dial-in modem pool<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'> ip unnumbered Loopback2<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'> encapsulation ppp<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'> no ip route-cache cef<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'> no ip route-cache<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'> ip tcp header-compression<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'> no ip mroute-cache<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'> dialer in-band<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'> dialer idle-timeout 9000<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'> dialer-group 1<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'> async mode dedicated<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'> peer default ip address pool dial-up<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'> no fair-queue<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'> ppp authentication chap modem<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'> no clns route-cache<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'> group-range 33 56<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'>And here is profile from RADIUS for involved user:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'>Profile="callback"<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'>
Framed-Protocol = PPP<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'>
Service-Type = Framed-User<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'>
cisco-avpair = "lcp:interface-config=ppp callback accept"<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'>
cisco-avpair = "lcp:interface-config=ip unnumbered lo2"<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'>
cisco-avpair = "lcp:interface-config=peer default ip address pool
dial-up"<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'>
cisco-avpair = "lcp:interface-config=encaps ppp"<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'>
cisco-avpair = "lcp:interface-config=ppp multilink"<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'>What I’m worried about is command „ppp callback
accept”. As far as I know – it should be configured on group-async
interface, but if I do it – nobody is able to call-in in any manner (with
callback or without). „debug aaa authentication” says that user
isn’t authorized for callback and AAA procedure exits at that moment (or
maybe I’m not doin enough debugging, so Im missin something). <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'>Any ideas how to proceed and what to troubleshoot? Maybe
anyone has got working configuration for callback? Any ideas what to debug? I understand
that there might be not enough information, if you need something else to give
some comments – I’ll do it </span></font><font size=2
face=Wingdings><span lang=LV style='font-size:10.0pt;font-family:Wingdings'>J</span></font><font
size=2 face=Arial><span lang=LV style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><st1:PersonName w:st="on"><font size=2 face=Arial><span
lang=LV style='font-size:10.0pt;font-family:Arial'>Andris</span></font></st1:PersonName><font
size=2 face=Arial><span lang=LV style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=LV style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
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