[rbak-nsp] SE-400 IP Pool Help

[Sherwin Ang]

thank you so much, that works!  i was about to lose faith in Redback.

On Sun, Dec 7, 2008 at 9:23 PM, David Freedman
<david.freedman at uk.clara.net> wrote:
> Yes, I've had stupid amounts of problems with the "summary-only" keyword in
> the past,
> it is most certainly broken in my release (6.1.3.1)
>
> Since you are doing this in a VPN content (and hence can't filter iBGP),
> Remove the "redistribute subscriber" and all the aggregate addresses
> and only have "redistribute static" then maintain static supernets
> routed to null0 (ip route x.x.x.x/y null0)
>
> like:
>
> router bgp vpn
> redistribute static
> no redistribute subscriber address
> no aggregate-address 200.96.96.0/19 summary-only
> no aggregate-address 200.96.204.0/22 summary-only
> no aggregate-address 200.96.252.0/22 summary-only
> ip route 200.96.96.0/19 null0
> ip route 200.96.204.0/22 null0
> ip route 200.96.252.0/22 null0
>
> Dave.
>
> ------------------------------------------------
> David Freedman
> Group Network Engineering
> Claranet Limited
> http://www.clara.net
>
>
>
> -----Original Message-----
> From: redback-nsp-bounces at puck.nether.net on behalf of Sherwin Ang
> Sent: Sun 12/7/2008 11:46
> To: redback-nsp at puck.nether.net
> Subject: [rbak-nsp] SE-400 IP Pool Help
>
> Hello Redback List,
>
> i've added a new IP Pool to our SE-400 using this configuration:
>
>  interface IPPOOL
>   ip address 200.96.0.1/30
> !
>  interface POOL multibind lastresort
>   ip unnumbered IPPOOL
>   ip pool 200.96.96.0/19
>   ip pool 200.96.204.0/22
>   ip pool 200.96.252.0/22
>
>  subscriber default
>    ip address pool name POOL
>    timeout idle 10
>    ppp mtu 1492
>
> Everything works great with regards to the Pool on our PPPoE but the
> problem now is how the routes are redistributed and aggregated on our
> BGP.
>
> I have this configuration to aggregate and redistribute the routes.
>
>  router bgp vpn
>   address-family ipv4 unicast
>    export route-target 999:4
>    import route-target 999:4
>    redistribute connected
>    redistribute subscriber address
>    redistribute static
>    aggregate-address 200.96.96.0/19 summary-only
>    aggregate-address 200.96.204.0/22 summary-only
>    aggregate-address 200.96.252.0/22 summary-only
>
> it looks correct but when i take a look at the BGP peer's routing
> table, it's getting a lot of /32's from the subscriber pool.  i now
> have like 8,000+ of them and growing.  The routes are not advertised
> without redistribute subscriber.  I tried putting a route-map and a
> prefix-filter to match only the supernets (/19's,/22's) but since it's
> still sending /32's, it won't match.
>
> I hope someone can point me to the right direction.
>
> Thank you.
>
> -Sherwin
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