[rbak-nsp] binding to a multibind interfaces

[Frans Legdeur]

Hi Vladislav,

If you would use the following commands on your vlan:

port ethernet 1/3
 no shutdown
 encapsulation dot1q
 dot1q pvc 112 
  bind subscriber frans at falco
!

And your context would have something like:

context falco
! 
 interface subscribers-1 multibind
  ip address 85.203.4.1/25
  ip arp proxy-arp
!
 interface subscribers-2 multibind
  ip address 10.0.0.1/24
  dhcp server 10.0.0.1
  ip pool 10.0.0.0/24
!
 subscriber name frans
   dhcp max-addrs 100
   ip interface name subscribers-2
!
...

Than you can serve the addresses through one or the other interface, be
aware that the max number of dhcp addresses is limited to 100 as I could see
through the configuration commands.

You can run the whole configuration by radius and using CCOD (Circuit
Creation On Demand) at the port to get this config running out of a
database, probably the same that serves the addresses of your connected
subscribers / phones.

Kind regards,


Frans.


From: Vladislav Vasilev <vvasilev at vvasilev.net>
Date: Tue, 9 Mar 2010 12:40:01 +0000
To: Frans Legdeur <frans at falco-networks.com>
Cc: <redback-nsp at puck.nether.net>
Subject: Re: [rbak-nsp] binding to a multibind interfaces

Hi Frans!

Here is what I am actually trying to achieve:

1. I have a DATA service in VLAN x
2. I have a Voice service in VLAN y

The BRAS acts as a DHCP server in this setup and I have one DHCP pool per
service. I want all PCs to be binded to the DATA service and all voice CPE's
to be binded to the Voice service. One solution would be (I've successfully
tested it) to match by OUI in the MAC address and to associate it with a
particular multibind interface by sending the "IP-Interface" Radius
attribute. Then the request will be served by the appropriate DHCP pool. But
what if the MAC addresses of my Voice CPE are not the same. The best
solution would be to match the request by incoming VLAN id. Then I wouldn't
need a Radius server or any static config per subscriber.


Thank you!

Regards,
V.Vasilev

On Tue, Mar 9, 2010 at 11:33 AM, Frans Legdeur <frans at falco-networks.com>
wrote:
> Hi Vladislav,
> 
> That would be easy, if the subscribers IP address is matching the IP range of
> your multibind interface, the binding will be done for you:
> Either, in case of DHCP, you can mention the name of the interface, or you
> assign the IP address in which case the matching interface will be found
> automatically.
> 
> Do you use radius or all by straight config?
> 
> 
> Kind regards,
> 
> 
> Frans.
> 
> 
> 
> 
> From: Vladislav Vasilev <vvasilev at vvasilev.net <http://vvasilev@vvasilev.net>
> >
> Date: Tue, 9 Mar 2010 11:00:08 +0000
> To: <redback-nsp at puck.nether.net <http://redback-nsp@puck.nether.net> >
> Subject: [rbak-nsp] binding to a multibind interfaces
> 
> 
> Hello!
> 
> I've got a SE 1200. Does anyone know how I can bind subscribers to a
> particular multibind interface based on an incoming VLAN id? Is it possible at
> all?
> 
> 
> Thanks!
> 
> Regards,
> V.Vasilev
> 
> 
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