Peering-Tech wrote:
Andre, cool tool!
But I notice the prefix isn't always shown correct,
e.g. telia.se displays 193.44.172.0/15
lambdanet.de displays 80.86.170.0/19, but is located at 80.86.162.17
wrong numbers, wrong cidr...
Thanks for reporting this. There seems to be a off-by-one error under
certain circumstances with the network address. We are using the LC-trie
to do the lookups and it looks like we made a mistake somewhere. We're
looking into it.
Ok, this problem is fixed. We had an error in the lookup server LC-trie
where we didn't properly lop off all the bits of the netmask. This would
happen only for certain specific bit patterns and mask combinations and
it a property of how the information is compressed and stored in the LC-trie.
No Firefox Extension update is required as this information is entirely
server generated and the fix has been applied there.
--
Andre
> --
> Andre
>
> > Karsten
> >
> > > -----Original Message-----
> > > From: Andre Oppermann [mailto:oppermann@networx.ch]
> > > Sent: Monday, February 13, 2006 2:37 PM
> > > To: swinog@swinog.ch
> > > Subject: [swinog] ASNumber Extension for Firefox [LNC-Admin
> > > SPAM][bayes]
> > >
> > >
> > > We've written a Firefox Extension that displays the AS Number of every
> > > website visited along with some additional interesting
> > > information. All
> > > data is updated daily and the prefix to AS number mapping is
> > > from a DFZ
> > > BGP feed.
> > >
> > > You can download the extension here (a screenshot is available too):
> > >
> > >
http://www.asnumber.networx.ch
> > >
> > > If you have any feedback, comments or feature requests please contact
> > > me either directly or at
asnumber@networx.ch. We are
> > > working on providing
> > > a lot more information on the RIR IP address delegations but
> > > need fully
> > > access to all RIR's whois records for that. I've completed
> > > all paperwork
> > > last week and we should receive full access in the near
> > > future. Another
> > > thing I want to do is to show the number of RBL (Spamhaus, etc) listed
> > > IPs per AS.
> > >
> > > BGP Experts, Traffic & Network Engineering Gurus
> > > --
> > > Andre Oppermann
> > >
> > > Internet Business Solutions AG
> > > Hardstrasse 235
> > > 8005 Zürich
> > > Switzerland
> > >
> > > Fon +41 44 277 75 75
> > > Fax +41 44 277 75 77
> > > Web www.networx.ch
> > > _______________________________________________
> > > swinog mailing list
> > > swinog@lists.swinog.ch
> > >
http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
> > >
> > _______________________________________________
> > swinog mailing list
> > swinog@lists.swinog.ch
> >
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