From: Ed Lui (edwlui@gmail.com)
Date: Thu May 26 2005 - 01:22:39 GMT-3
I would say mostly because your ISP's dns server is too busy to answer
your request. There is no benefit to forward the query to your ISP if
you have your own dns server in-house.
HTH,
Ed Lui
On 5/25/05, Sam Joseph <samjoseph747@hotmail.com> wrote:
> Hi Guys, Have peculiar DNS Behaviour. Here is the Detail:
>
> Have a 1700 Series with ADSL Card For Internet Access. Have Windows 2003
> DNS Server functioning as a forwarder. The Windows 2003 DNS will forward
> the DNS requests, to ISP's DNS Server for internet name resoultion.
>
> Below is a simple topology shown
>
> ISP ------ 1700 ADSL --- Cisco 2950 Switch ------ Windows 2003 DNS Server
> and Clients.
>
> Problem:
>
> The Problem is can't visit most websites.
>
> When I try to ping www.cisco.com, it works fine. If try to visit
> http://www.cisco.com, it timesout. However, can visit
> http://www.ciscopress.com website. The 1700 Series has firewall feature
> set. We are yet to turn on FW functions on 1700.
>
> Any insight is appreciated.
>
> Thanks
>
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