On 8/24/10 2:11 AM, Tom Chadwin wrote:
>> Why is your DSL limited to 832kb/s?
> That's what we get in this country, largely speaking. That's why I always
> stress that it's ADSL over here - asymmetric. The standard is 8Mbps down,
> 832kbps up. SDSL is available, but not in the locations where our offices
> are located - as a National park, we are obviously somewhat rural. Faster
> ADSL connections are available in urban locations (20Mbps, 50Mbps down, no
> idea about the uplink speed), but not here. It is our rural location which
> also makes leased lines prohibitively expensive, since we are so far from
> any POP. That's why we're stuck with 832kbps VPNs between our offices
> (though we do aggregate lines with load balancers on our data - not VoIP -
> conections), giving us 1.664Mbps between sites (the balancers are
> firewall-agnostic, so should work if we used Astlinux as the firewalls):
>
> ADSL line     ADSL line
>       |               |
> ADSL modem    ADSL modem
>       |               |
>       Load balancer
>               |
>          Firewall
>
> Hope that makes sense
>
> Tom

I think a Solos card with 2 or 4 ports and using MPPP (multilink) bonding would 
work out well for you.

-Philip


>
>> On 8/23/10 8:22 AM, Tom Chadwin wrote:
>>> I'm in the UK, and currently do have a few spare DSL lines kicking
>>> around (though they are spare because I have identified them as
>>> unused, and are slated for removal). But excuse the dilletante
>>> ignorance: our Astlinux EXTIFs connect to ADSL modem/routers. I did
>>> ask a while back about the ability to get a hw NIC to do PPPoA, and
>>> was told it was impossible. How could I help? Would I need an ADSL
>>> card (ie is that what you are suggesting)?
>>>
>>> To answer your previous question: we have PSTN cards to
>> connect to the PSTN.
>>> Because our DSL is limited to a theoretical max of 832kbps, VoIP is
>>> unrealistic other than between our sites. Our set-up is therefore:
>>>
>>>
>>> SIP handsets + PAP2Ts
>>>     |
>>> Astlinux - ADSL modem/routers - IAX2 over ADSL to another site
>>>     |
>>> PSTN card (berofix BRI or PRI, or Digium TDM POTS card)
>>>     |
>>>       PSTN
>>>
>>>
>>> Go ASCII.
>>>
>>> Hope this clarifies
>>>
>>> Tom
>>>
>>>
>>>> -----Original Message-----
>>>> From: Philip Prindeville
>> [mailto:[email protected]]
>>>> Sent: 21 August 2010 00:54
>>>> To: [email protected]
>>>> Subject: Re: [Astlinux-users] Second external NIC for VPN
>>>>
>>>>     On 8/20/10 8:03 AM, Tom Chadwin wrote:
>>>>>> Another issue, only one interface can be PPPoE, not both.
>>>>>> (Assuming you are using PPPoE for your ADSL)
>>>>> Nope: PPPoA via external routers.
>>>> I'm working on PPPoA support right now.  Just need to
>> order a circuit.
>>>> BTW:  where are you located, and do you have any spare DSL
>> circuits
>>>> (or one you could loan for testing)?
>>>>
>>>> Might be faster than getting a circuit delivered.
>>>>
>>>> -Philip
>>>>
>>>>
>>>>
>>>>>> Another issue, IPsec is only supported as static IP to static IP.
>>>>> All sites have /29 static subnets, so no problem there.
>> Home users
>>>>> obviously are dynamic.
>>>>>
>>>>>> Another issue, L2TP/IPsec server is not supported.  On the other
>>>>>> hand, OpenVPN can be configured to handle your needs,
>> but all your
>>>>>> clients would have to switch to OpenVPN.
>>>>> Not too much of an issue, to be honest - our current L2TP/IPSec
>>>>> road-warrior connection have utterly unexplained problems
>>>> as it is, so
>>>>> a change would not be out of the question.
>>>>>
>>>>> Tom
>>


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