Ethereal-users: [Ethereal-users] Redundant DNS queries

Note: This archive is from the project's previous web site, ethereal.com. This list is no longer active.

From: Vlad Codrea <vladc6@xxxxxxxxx>
Date: Thu, 19 May 2005 09:16:05 -0700 (PDT)
Hi,

I've noticed that whenever Firefox goes to a website
(for example ebay.com) it sends out 3 DNS queries, but
only receives the IP address of the server after the
third request. Here's what ethereal records:
Standard query AAAA ebay.com
Standard query response
Standard query AAAA ebay.com
Standard query response
Standard query A ebay.com
Standard query response A 66.135.192.87

Strangely enough, when I ping a website (for example
lycos.com), there is only one DNS query and an
immediate response containing the IP address.
Standard query A lycos.com
Standard query response A 209.202.248.101

The problem I have with Firefox querying 3 times is
that I often have to wait 5 seconds before the page
even starts downloading. Does anyone know what's
happening here and how I can make Firefox get the IP
address from the first query?

Thanks,
Vlad


		
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