[j-nsp] source-based routing/vrf

[Alex]

Then I guess You can use the method described in JNCIS Study Guide by Joe 
Soricelli, pages 647-648, with slight modification.
Take BGP feeds from A, B, C into separate routing instances of type vrf and 
configure one static default route per instance pointing to next-table:
routing-options {
static {
route 0.0.0.0/0 next-table carrier-A.inet.0
}
}
Configure rib-groups to copy customer prefixes (10.0.0.0/24 and 10.0.1.0/24) 
into inet.0 and carrier-[ABC].inet.0 tables.
Configure firewall filters on customer-facing interfaces to match on source 
IP and with action "routing-instance carrier-[ABC]".
In this manner You can build a chain of lookups (first on source IP, then on 
dest IP/specific prefix coming from carrier A , if that prefix is not 
available then on
specific prefix coming from Carrier B and so on.
Disclaimer - I never tested this myself...
HTH
Cheers
Alex

----- Original Message ----- 
From: "Jonas Frey" <jf at probe-networks.de>
To: "Alex" <alex.arseniev at gmail.com>
Cc: <juniper-nsp at puck.nether.net>
Sent: Wednesday, June 28, 2006 2:36 PM
Subject: Re: [j-nsp] source-based routing/vrf


> Yes, BGP is used (to A,B,C). The given prefixes are connected locally
> (static). There are no other prefixes thus no other source IPs to be
> taken care of.
>
> Regards,
> Jonas
>
> On Wed, 2006-06-28 at 15:25, Alex wrote:
>> Not enough information.
>> Is BGP used? What about packets with other source IPs?
>> Cheers
>> Alex