Re: [Linux-ATM-General] atm-tools and Ubuntu 10.10

[Maestrelli F. <fra...@aa...>]

So.. I tried to play around a bit with what you told me, but I still have the same problems.

I closed X window, stopped the gdm service, I used Klogd -c 6 and i got the following:

sudo atmsigd -b  ->> Error: line 18 syntax error near "entity" and the system freezes.

sudo ilmid -b ->> the system freezes with no messages

Considering that It seems I don't need these, I tried br2684ctl and I got:

sudo br2684ctl -c 0 -e 1 -a 0.101  ->> Interface "nas0" created successfully
                                                       ->> Communicating over ATM 0.0.101, encapsulation: VCmux
                                                       ->> system freezes


I tried also with the default paramenters (encapsulation LLC) but it freezes anyway.
I thought that it could be because the endpoint in the DSLAM wasn't configured, but I checked and it seems configured correctly (VPI 0 and VCI 101).

any other suggestions? Could it be a problem with the zatm driver?

Francesco Maestrelli
------------------------------------
fra...@aa...

________________________________________
From: chas williams - CONTRACTOR [ch...@cm...]
Sent: 21 January 2011 17:27
To: Maestrelli Francesco
Cc: lin...@li...
Subject: Re: [Linux-ATM-General] atm-tools and Ubuntu 10.10

On Fri, 21 Jan 2011 10:20:25 +0000
Maestrelli Francesco <fra...@aa...> wrote:

> I forgot to add as a CC to my answer the whole mailing list. Sorry for that and for sending again this message.
>
> Little description:
>
> I'm trying to configure an ATM connection between a computer I'm setting up and a DSLAM (Nokia D50, former Eksos B20) that will be connected over ADSL to an ADSL modem (M10 ADSL modem). This should simulate the standard conficuration an ISP could use to provide ADSL services to its customers.
>
> The computer I'm setting up should act as a switch or router and forward the requests coming from the ADSL connection (that the client computer connected to the ADSL modem will send) to the default gateway of the network I'm connected to. To do this the computer also have an ethernet card connected to the local network.
>
> Problem:
>
> The computer I'm setting up is running ubuntu 10.10 (kernel 2.6.35-24-generic), 512MB RAM, AMD Athlon Processor 1,4 Ghz. I was looking for information on the net to set up this environment, but i couldn't find much.
> I'm actually following this: http://www.linuxjournal.com/article/3005 even if it's a quite old article.
>
> When I start atmsigd or ilmid the computer suddenly stop responding.

if you dont start X windows and turn off kernel logging so that it
appears on the screen (service syslog stop i think and klogd -c 6
as well on some systems) do you see any oops?  sometimes it is helpful
if you have a serial console setup to catch any errors on another
computer.

however, given your config, you need a pvc, so you really dont need
ilmid or atmsigd.  you only need to run those for pvc's.

> Since I need to create a connection between this computer and the DSLAM and from there to the modem i think I'll need to setup a PVC thus I don't think I'll need those daemon.. right? What could be the reason they freeze anyway?

as i recall from your other message to me, you are using a zeitnet
card.  this is the zatm driver which should work but i havent heard of
any reports of it working either in quite a while.  i dont happen to
have a zeinet on hand to test the driver in any way.

>
> Leaving aside these two I did the following:
>
> * I created the ATM device name:  atmarp -c atm0
>
> and from ifconfig -a i see the following:
>
> atm0      Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
>           [NO FLAGS]  MTU:9180  Metric:1
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:100
>           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
>
> (Isn't it weird that HWaddr is all zeros?)
>
>
> * I configured the interface : ifconfig atm0 10.38.100.254 netmask 255.255.255.0 mtu 9180
>
> * I added a route for the ATM subnet : route add -net 10.38.100.0 netmask 255.255.255.0 atm0
>
> *Now I tried to setup the PVC: atmarp -s 10.38.100.101 0.0.101     (VPI:0 VCI:101)
>
> now I'm not totally sure about this command, but as I said I can't find much documentation on how do do this.
> At this point the pc freezes again.
>
>
> Probably It's my bad that I'm not understanding something. Any help would be precious. Thanks in advance.

you probably want br2684ctl instead.  this creates a single ip
interface bound to a pvc.  there is a man page for it here:

http://linux.die.net/man/8/br2684ctl


>
> BR,
>
> Francesco Maestrelli
> ------------------------------------
> fra...@aa...
>
> ________________________________________
> From: chas williams - CONTRACTOR [ch...@cm...]
> Sent: 20 January 2011 17:10
> To: Maestrelli Francesco
> Cc: lin...@li...
> Subject: Re: [Linux-ATM-General] atm-tools and Ubuntu 10.10
>
> nothing that i know about specifically.  what is your hardware and what
> are commands are you running?
>
> On Thu, 20 Jan 2011 11:03:59 +0000
> Maestrelli Francesco <fra...@aa...> wrote:
>
> > Are there know issues with the atm daemons and Ubuntu 10.10? When I l start them following instructions in here http://www.linuxjournal.com/article/3005 the machine freezes.
> >
> > Thanks
> >
> > Francesco
>
>
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