Urrr... A-root server foul ?

Wed Aug 26 21:47:34 UTC 1998

On Wed, 26 Aug 1998, Richard Irving wrote:

> Is anyone else seeing this ? really *cool* udp trick, 
> or is bcast space now DNS capable ? What am I missing ?
> 
> Server:  ns2.mci.net
> Address:  204.70.57.242
> 
> Non-authoritative answer:
> Name:    A.ROOT-SERVERS.NET
> Address:  198.41.0.4
> 
> And a ping yields ?
> 
> 
> 64 bytes from 198.41.0.4: icmp_seq=16 ttl=250 time=59 ms
> 64 bytes from 198.41.0.4: icmp_seq=16 ttl=249 time=76 ms (DUP!)
> 64 bytes from 198.41.0.4: icmp_seq=16 ttl=250 time=77 ms (DUP!)
> 64 bytes from 198.41.0.4: icmp_seq=17 ttl=250 time=57 ms
> 64 bytes from 198.41.0.4: icmp_seq=17 ttl=250 time=64 ms (DUP!)
> 64 bytes from 198.41.0.4: icmp_seq=17 ttl=249 time=73 ms (DUP!)
> 64 bytes from 198.41.0.4: icmp_seq=18 ttl=250 time=71 ms
> 64 bytes from 198.41.0.4: icmp_seq=19 ttl=250 time=53 ms
> 64 bytes from 198.41.0.4: icmp_seq=19 ttl=249 time=57 ms (DUP!)
> 64 bytes from 198.41.0.4: icmp_seq=19 ttl=249 time=73 ms (DUP!)
> 

Actually, let's use 12.7.96.0/24 as an example...

12.7.96.6 is the only machine in this range that has an answer on port 53
for DNS

empnet:chris {104} nslookup
Default Server:  mimosa.noc.empnet.com
Address:  12.7.96.6

> server 12.7.96.255
Default Server:  [12.7.96.255]
Address:  12.7.96.255

> merit.edu
Server:  [12.7.96.255]
Address:  12.7.96.255

Non-authoritative answer:
Name:    merit.edu
Address:  198.108.1.42

> 

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