Bonded ADSL circuits cost a fortune from ISPs here, so we could only
multilink the VPNs, which is what we currently do with the external routers
and balancers. Plus, as you mentioned initially, our host boards are
net5501s, and we need the PSTN cards in the single PCI slot, so I think we
are stuck with using external routers (this was why I was asking about
miniPCI DSL cards a while back).

Back to the original question: would it be achievable to use Astlinux with
two EXTIFs, one for VoIP, the other for VPNs and internet access?

Thanks

Tom
 

> -----Original Message-----
> From: Philip Prindeville [mailto:[email protected]] 
> Sent: 24 August 2010 17:06
> To: [email protected]
> Subject: Re: [Astlinux-users] Second external NIC for VPN
> 
> 
> 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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speed time-to-market. Join now, and jumpstart your future.
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