> 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
> 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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