[c-nsp] Help with debug commands to diagnose ADSL subscribers not connecting to a non-existent VRF

[Tony]

Hi Andy,

The commands I have used in the past to see which VRF DSL conections are going into are:

deb aaa authentication
deb aaa per-user
deb ppp authentication
deb ppp negotiation
deb vpdn event
deb vtemplate
deb radius


They're probably not all required, I suspect VPDN & vtemplate should show you what you need.



regards,
Tony.

--- On Mon, 23/2/09, Andy Saykao <andy.saykao at staff.netspace.net.au> wrote:

> From: Andy Saykao <andy.saykao at staff.netspace.net.au>
> Subject: [c-nsp] Help with debug commands to diagnose ADSL subscribers not connecting to a non-existent VRF
> To: cisco-nsp at puck.nether.net
> Date: Monday, 23 February, 2009, 11:30 AM
> Hi There,
>  
> I'm trying to debug ppp packets on our LNS (NAS) for
> ADSL subscribers
> when the VRF is not yet configured on the LNS.
>  
> When I set a bogus (non-existent) VRF in the Radius flat
> file, I woud
> like to see what debug error messages appear on the LNS (if
> any).
>  
> vpntest3          Password = "network"
>         Service-Type = Framed-User,
>         Framed-Protocol = PPP,
>         Framed-Address = 10.15.100.4,
>         Framed-Netmask = 255.255.255.255,
>         cisco-avpair="ip:vrf-id=Avpn-dummy",
>         cisco-avpair="ip:ip-unnumbered=lo100684",
>         cisco-avpair="ip:route=vrf Avpn-dummy
> 192.168.1.0 255.255.255.0
> 10.15.100.4"
> 
> Here we've got a VRF Avpn-dummy that has not been
> configured on the LNS
> which results in the ADSL connection failing to connect.
>  
> I've got the follow debug running on the LNS.
>  
> lns5-mel#sh debug
> PPP:
>   PPP protocol errors debugging is on
>   PPP protocol negotiation debugging is on
>   PPP packet display debugging is on
> Radius protocol debugging is on
> Radius packet protocol debugging is on
>  
> Condition 1: username vpntest3 at dbtest (0 flags triggered)
> 
> lns5-mel#
> Feb 23 11:12:10.618 AEDT: vpntest3 at dbtest Debug: Condition
> 1, username
> vpntest3 at dbtest triggered, count 1
> Feb 23 11:12:10.630 AEDT: vpntest3 at dbtest Debug: Condition
> 1, username
> vpntest3 at dbtest cleared, count 0
>  
> I am seeing the condition being met, but obviously I would
> like more
> information as to what the error is. 
>  
> I would have thought a "debug ppp negotiation"
> would help me out, but
> it's not displaying anything.
>  
> Are there any other debug commands I've missed ??? 
>  
> Thanks,
>  
> Andy
> 
>