Re: ingress filtering

[John Fraizer <John.Fraizer () EnterZone Net>]

At 08:09 AM 5/29/98 -0400, you wrote:
> Actually it has nothing to do with WINS.  If all the ISP's would implement
> solid in-addr.arpa reverse mappings, this would go away.  Microsoft's DNS
> resolver has been extended, when DNS lookups fail, to do a reverse NETBIOS
> query against the target machine so it can use its name when displaying
> stuff via NBTSTAT, etc.  It was designed this way, before the Internet
> became popular.

The reverse on the name being queried works just fine:

[OverKill]:/# nslookup www.stefcam.com
Server:  NS1.ENTERZONE.NET
Address:  209.41.244.5

Name:    STEFCAM.COM
Address:  209.41.244.238
Aliases:  www.stefcam.com

[OverKill]:/# nslookup 209.41.244.238
Server:  NS1.ENTERZONE.NET
Address:  209.41.244.5

Name:    StefCAM.Com
Address:  209.41.244.238




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