On Fri, 3 Nov 2000, Rob Hardowa wrote:
> That's also something I'd had real troubles with. The modem I have is the
> alcatel speed touch home.
Looking through their FAQ, I found this:
http://www.alcatel.com/consumer/dsl/supfaqusa.htm#usa3
3. There's no firewall in the A1000 or Home, does it make these modems
unsafe to use? Absolutely not. When in standard settings, these modems do
not allow any connection from the outside world to your modem or computer,
except when requested by your machine. This means it only allows replies
on your request, for example the loading of a webpage after clicking a
link. When a computer, unknown to your modem, is trying to connect to your
modem or computer, it will be blocked.
That's no good :(
The you-sir manual doesn't seem to indicate any way to forward traffic
back into your network with the "home" model (though I suspect that the
"pro" model would be able to do this. You might have to put the modem into
PPPoE mode, and run a PPPoE client on your linux box.
If you run PPPoE on your machine, all of your trouble
disappears. ifconfig will show your public IP on a PPP device, and you
get to control your open ports using ipchains. The only downside is the
CPU use by the PPPoE client and possible performace degradation. I have
no experience running PPPoE, but I suspect that if your system is recent,
you won't notice either of those problems at all. (Though I'm really
curious to know if that's the case).
> I've downloaded both the users manual and
> advanced manual from their site and just cannot get that thing to use the
> web or telnet interface. It has a default address of 10.0.0.138 and no
> matter what I try I can't seem to get in from either linux or win.
Can you ping that IP address? If not, I'd reset the modem to its default
settings using the button on the back. After it reboots, try to ping,
browse, or port scan the modem.
> Now, when I try the snmpwalk using an address on our network, like our
> server's dns address, i get the thing spewing out addresses for 10 mins
> before I sigint it. If I try any address (from top of my head) other than
> that, including the private ip to my modem, it tells me it's unreachable.
The yewzur manual doesn't indicate that the modem supports SNMP, so maybe
it doesn't. If you can't browse to the modem, I wouldn't suspect that you
could connect to its SNMP service either.
> The ONLY thing that has worked in the past has been a connection to an
> echo server for speakfreely which did return my ip to the opposite user.
> There used to be a dynip site on the net that worked for me for about 2
> weeks and since then it reports everyone on our network with the same ip.
Probably a transparent proxy. My provider has put one of those up a
couple of times. Later it fails, and everyone looses service for a couple
of hours and they turn it off for a couple months before trying again.
MSG
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