[irrtoolset]generating import filters with RtConfig

Francesco Ferreri wrote:

> Dear all,
> I'm quite new to RtConfig, I would like to know how I can generate 
> import filters both using prefix lists and as-path lists.
> 
> Playing around with RIPE test database I got this:
> if I specify an import policy in such a way:
> 
> import: from ASx accept ASy
> 
> (having a route object for ASy),
> then "@RtConfig import ASx <ip-addr-x> ASy <ip-addr-y>" gives me back a 
> filter based on prefix lists.
> 
> Otherwise, if I specify an import policy (or similar):
> 
> import: from ASx accept <^ASy+$>
> 
> then I get back a filter based on an as-path.
> 
> So the main difference seems to reside in the way the aut-num object is 
> written: using simple AS names gives prefix list filters, using regular 
> expressions on AS names gives as-path based filters, am I right ?
> Is there a way to combine both things to obtain both types of filters 
> for the same peering relationship ?

import: from ASx accept ASy AND <^ASy$>

Mark.