From: Church, Chuck (cchurch@netcogov.com)
Date: Wed May 25 2005 - 23:46:44 GMT-3
If you can ping it by name, that would indicate that DNS is working.
Try pointing a workstation to the ISP DNS, rather than yours. If that
workstation works, problem lies on your DNS server. Since it's DSL and
probably using PPPoE, MTU issues are a possibility as well...
Chuck Church
Lead Design Engineer
CCIE #8776, MCNE, MCSE
Netco Government Services - Design & Implementation Team
1210 N. Parker Rd.
Greenville, SC 29609
Home office: 864-335-9473
Cell: 703-819-3495
cchurch@netcogov.com
PGP key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x4371A48D
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Sam Joseph
Sent: Wednesday, May 25, 2005 8:09 PM
To: ccielab@groupstudy.com
Subject: OT --- Peculiar DNS Problem
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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This archive was generated by hypermail 2.1.4 : Fri Jun 03 2005 - 10:12:02 GMT-3