[j-nsp] JNCIP EBGP Case Study...

[Hoogen]

Hi Felix,

Thank you for the reply..

I am not sure how that 17 hidden routes came into play... But its not there
now.. I still see the issue..

I had already checked the hidden routes..and those are not the ones which
are hiding

lab at R3# run show route receive-protocol bgp 10.0.6.1 hidden extensive

inet.0: 66 destinations, 85 routes (63 active, 0 holddown, 3 hidden)

__juniper_private1__.inet.0: 2 destinations, 2 routes (2 active, 0 holddown,
0 hidden)

iso.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)

[edit]
lab at R3#

lab at R3# run show route receive-protocol bgp 10.0.6.1

inet.0: 66 destinations, 85 routes (63 active, 0 holddown, 3 hidden)
  Prefix                  Nexthop              MED     Lclpref    AS path
* 192.168.10.0/24         10.0.6.1                     100        I
* 192.168.100.0/24        10.0.6.1             101     101        I

__juniper_private1__.inet.0: 2 destinations, 2 routes (2 active, 0 holddown,
0 hidden)

iso.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)

[edit]
lab at R3#

lab at R3# run show route protocol bgp hidden extensive

inet.0: 66 destinations, 85 routes (63 active, 0 holddown, 3 hidden)
172.17.0.0/16 (1 entry, 0 announced)
         BGP                 /-101
                Next-hop reference count: 2
                Source: 172.16.0.14
                Next hop: 172.16.0.14 via ge-0/0/0.0, selected
                State: <Hidden Ext>
                Local AS: 65000 Peer AS: 65222
                Age: 1:27:54
                Task: BGP_65222.172.16.0.14+3227
                AS path: 65222 I
                Localpref: 100
                Router ID: 130.130.0.1

192.0.2.0/24 (1 entry, 0 announced)
         BGP                 /-101
                Next-hop reference count: 5
                Source: 172.16.0.18
                Next hop: 172.16.0.18 via ge-0/0/3.0, selected
                State: <Hidden Martian Ext>
                Local AS: 65000 Peer AS: 65222
                Age: 1:28:19
                Task: BGP_65222.172.16.0.18+179
                AS path: 65222 I
                Communities: 65412:102
                Localpref: 100
                Router ID: 130.130.0.2

220.0.0.0/28 (1 entry, 0 announced)
         BGP                 /-101
                Next-hop reference count: 5
                Source: 172.16.0.18
                Next hop: 172.16.0.18 via ge-0/0/3.0, selected
                State: <Hidden Ext>
                Local AS: 65000 Peer AS: 65222
                Age: 1:28:19
                Task: BGP_65222.172.16.0.18+179
                AS path: 65222 I
                Localpref: 100
                Router ID: 130.130.0.2

__juniper_private1__.inet.0: 2 destinations, 2 routes (2 active, 0 holddown,
0 hidden)

iso.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)

[edit]
lab at R3#


The one I am concerned is with group 65000 and I don't have any import
policy to deny anything there..

[edit]
lab at R3# show protocols bgp
advertise-inactive;
group 65000 {
    type internal;
    local-address 10.0.3.3;
    export ibgp;
    neighbor 10.0.6.1;
}
group c-bgp {
    type external;
    multihop;
    local-address 10.0.3.3;
    export ibgp;
    neighbor 10.0.3.4 {
        hold-time 180;
        peer-as 65001;
    }
    neighbor 10.0.3.5 {
        peer-as 65002;
    }
}
group t1-t2 {
    type external;
    damping;
    import [ damp trans-filter-in ];
    export [ no-192-24s prepend ];
    remove-private;
    multipath;
    neighbor 172.16.0.14 {
        peer-as 65222;
    }
    neighbor 172.16.0.18 {
        peer-as 65222;
    }
}

[edit]
lab at R3#

This is really strange.. I compared the solutions, and there seems nothing
wrong..

-Hoogen

On Thu, Oct 29, 2009 at 1:59 AM, Felix Schueren <
felix.schueren at hosteurope.de> wrote:

> Hoogen,
>
> Hoogen wrote:
> >>> Now R3 only receives
> >>>
> >>> lab at R3# run show route receive-protocol bgp 10.0.6.1
> >>>
> >>> inet.0: 66 destinations, 106 routes (63 active, 0 holddown, 17 hidden)
> >>>   Prefix                  Nexthop              MED     Lclpref    AS
> path
> >>> * 192.168.10.0/24         10.0.6.1                     100        I
> >>> * 192.168.100.0/24        10.0.6.1             101     101        I
> >>>
> please do
> show route receive-protocol bgp 10.0.6.1 hidden extensive
>
> also paste
> show configuration protocols bgp
>
> both from R3
>
> Kind regards,
>
> Felix
>
> --
> Felix Schüren
> Head of Network
>
> -----------------------------------------------------------------------
> Host Europe GmbH - http://www.hosteurope.de
> Welserstraße 14 - 51149 Köln - Germany
> Telefon: 0800 467 8387 - Fax: +49 180 5 66 3233 (*)
> HRB 28495 Amtsgericht Köln - USt-IdNr.: DE187370678
> Geschäftsführer:
> Uwe Braun - Alex Collins - Mark Joseph - Patrick Pulvermüller
>
> (*) 0,14 EUR/Min. aus dem dt. Festnetz, Mobilfunkpreise ggf. abweichend
>