[6bone] AW: Ghost Route Hunter

[Hahn, Ch]

Hi Jeron,

> -----Ursprungliche Nachricht-----
> Von: Jeroen Massar [mailto:jeroen@unfix.org]
> Gesendet: Sonntag, 1. Dezember 2002 17:35
> An: v6ops@ops.ietf.org; 6bone@ISI.EDU
> Cc: dnofal@CVTCI.COM.AR; radovic@net.yu; stana@verat.net; 
> awl@verat.net;
> wlf@verat.net; noc@noc.dfn.de; kukl@tbit.dk; hha@tbit.dk;
> Anders.Bandholm@uni-c.dk; Ole.Kjaergaard@uni-c.dk
> Betreff: Ghost Route Hunter
> 
-------------------8<---------------------------------------
> 
> Currently there are still 4 big ghost routes floating around:
> - 3ffe:100::/24
> netname:      TELEBIT
> descr:        pTLA delegation for the 6bone
> Which dropped of the internet around tuesday when looking at 
> the latency
> graphs*.
> ipv6telebit.tbit.dk is unreachable over IPv4. The graphs also 
> show that
> it was
> only reachable from two out six sites.

Have this route in table.

> 
> - 3ffe:1400::/24
> netname:      UNI-C
> descr:        pTLA delegation for the 6bone
> remarks:      ***************************************
> remarks:      * * * *  no longer operational  * * * *
> remarks:      ***************************************
> 
> But still visible and ghosted and not officially retracted!
> 
> Last changed line:
> changed:      Anders.Bandholm@uni-c.dk 20010420
> 
> This would mean that the route would have been gone for over 
> a year and
> a half!
> This route is currently announced by VERAT and Deutsche 
> Telekom though.

>From my point of view it looks a little bit different. I see this route in my table via two paths with a number of >25 ASes in path and still incomplete. Last AS before incompletness in both cases is 15982 (VERAT). We have a peering with VERAT but don't receiving this route from them. Instead we announing the route to them.
I've checked the FUBAR, STBEN-BE looking glass and saw the route with our AS appended. Currently I have no idea how and where in the path our AS# is appended, but I'm shure that we are not originating this route. 

At first step I will filter this route and then lets see if it will vanish or change its path.

> 
> - 3ffe:1e00::/24
> ipv6-site:    SWISSCOM
> origin:       AS3303
> descr:        Swisscom Innovations
> 
> No netname available apparently. But it is currently announced by:
> source: APNIC  
> aut-num: AS4697  
> as-name: NTTV6NET  
> descr: NTT Software Laboratories  
> 
> I have already contacted these people seperatly, no response as yet.
> Nothing in their 6bone object seems reachable.

The routing entry looks similar to the one above. Long AS path and still incomplete.

> 
> - 3ffe:8010::/28
> ipv6-site:    ICM-PL
> origin:       AS8664
> descr:        Interdisciplinary Centre for Mathematical and
> Computational Modelling
>               Warsaw University, Poland
> 
> Origin is currently ICM-PL and ICP-AS.
> 6bone-gw.6bone.pl is unreachable over IPv4 and IPv6

Have this route in table, seams still ok at this point. 6bone-gw.6bone.pl is reachable via IPv4.

cheers,
	Christian

<><><><><><><><><><><><><><><><><><>
Christian Hahn

T-Systems
Systems Integration

T-Systems Nova GmbH
Berkom
IP-Technologies

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