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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical RE: Net-24 top prefix generating bogus RFC-1918 queries
On Sun, 1 Jun 2003, McBurnett, Jim wrote:
> guys.. I have a thought...
> I am a charter fiber customer..
> AND they use lots of 1918 address for management even some customer links.
> I have seen this on all the cable providers..
> unlike Sprint/MCI/ATT they don't use 100% RW on all their equipment..
>
> then they leak because the BGP is not filtering properly..
Uhm, incorrect.
A DNS lookup for a RFC1918 in-addr.arpa record is unrelated to BGP or
BGP filters.
If you want to generate an RFC1918 in-addr.arpa query to the AS112
servers do the following
> nslookup
Default Server: localhost
Address: 127.0.0.1
> set querytype=any
> 10.in-addr.arpa
Server: localhost
Address: 127.0.0.1
Non-authoritative answer:
10.in-addr.arpa
origin = prisoner.iana.org
mail addr = hostmaster.root-servers.org
serial = 2002040800
refresh = 1800 (30M)
retry = 900 (15M)
expire = 604800 (1W)
minimum ttl = 604800 (1W)
Authoritative answers can be found from:
10.in-addr.arpa nameserver = BLACKHOLE-1.iana.org
10.in-addr.arpa nameserver = BLACKHOLE-2.iana.org
BLACKHOLE-1.iana.org internet address = 192.175.48.6
BLACKHOLE-2.iana.org internet address = 192.175.48.42
>
Your query will then be included in John's statistics. You BGP filters
will not stop it.
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