PPPOE design

Truman Boyes truman at suspicious.org
Thu Sep 17 13:49:30 UTC 2009


PPPoX connections terminated on BRAS/BNG devices will use AAA, and  
therefore you can assign whatever routes you want to the customer with  
RADIUS VSAs. Typically you will aggregate or null routes for your dhcp  
or ppp local pools, and then a policy to advertise these routes via  
BGP to the rest of your network.

If some customers get static /32's for inet4 pppoe you would then also  
want to export the local/access routes into BGP. I would suggest using  
a different network range for static customers so you can better  
control your route advertisements.

Kind regards,

On 17/09/2009, at 5:30 PM, Devangnp wrote:

> Hi,
> Any design consideration on PPPoE agg & routing? Any good example of  
> covering multiple customers or subnets ?
> Thanks,
> Devang Patel

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