Ethereal-dev: Re: [Ethereal-dev] Request for Change

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From: Guy Harris <gharris@xxxxxxxxx>
Date: Mon, 7 Oct 2002 15:30:32 -0700
On Tue, Sep 24, 2002 at 11:26:32AM -0400, Ashok Narayanan wrote:
> 1) Only DNS lookups turned off by default.

Presumably when people say "DNS lookups" they really mean "network-layer
address to name lookups"; Ethereal calls "gethostbyaddr()" to do
IPv4-address-to-name lookups, and the OS's implementation of
"gethostbyaddr()" would do the DNS lookup - Ethereal does not control
whether the lookup involves DNS or not (and, as noted in my other
message, the main problem on Windows isn't DNS, it's NBNS).

> 3) Add a new option ("-D"?) for enablind DNS lookups for IP addresses.

You can use "-N" to change the options on the command line.