Use this url for testing any WEB site from web browser. Yahoo provide very
good facility to tracerout web sites on port 80 from this URL
net.yahoo.com/cgi-bin/trace.sh


        -----Original Message-----
        From:   Erik Mintz [SMTP:[EMAIL PROTECTED]]
        Sent:   Friday, July 14, 2000 9:12 PM
        To:     '�� �� ��'; '[EMAIL PROTECTED]'
        Subject:        RE: About  accessing to some sites

        -----BEGIN PGP SIGNED MESSAGE-----
        Hash: SHA1

            If you can trace and ping the sites, it sounds like your address
        blocks may be filtered at the destination or more likely, your L4
        switches. First try telnetting to port 80 from both sides of the
        switches, if you suspect it is they're side, run a ping against the
        sites checking port 80 and varying your source addresses.
        Also, first try pinging from the troublesome source IP's with large
        packets, it could be a misconfigured circuit dropping your HTTP
        requests but passing the tiny ping packets, I've seen this before on
        x.25 links and could happen at any layer 2-3 device.

        Erik Mintz
        Director, IT operations
        Crosslinks systems
        1 Silicon alley plaza
        New York, NY
        10038
        [EMAIL PROTECTED]



        - -----Original Message-----
        From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf
Of
        �� �� ��
        Sent: Friday, July 14, 2000 5:16 AM
        To: [EMAIL PROTECTED]
        Subject: About accessing to some sites


        This is kornet in korea.   The kornet is one of ISPs in our nation.
        Recently we have had difficulty in getting to some sites like
        www.chez.com,www.com,www.yahoo.co.uk
        www.blizard.com,www.polarismech.com.
        Mostly  we have got lots of calls from the customers who use ADSL
        connection
        with source ip address 211.38.0.0.      they say they can traceroute

        and
        ping to the destinations but can't open
        the sites on the web.      With the ip space 168.126.0.0 that we
        currently
        use, we also can reach to
        the sites but we can't open the two sites www.chez.com,www.com on
the
        web.
        For your reference, our customers go through L4 switches and Net
        caches.
        we need your help!!  if you need further more question, feel free to
        ask us
        !!!

        from cho


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