Re: Can't ping yahoo.com

by following the suggestions that Joe wrote in his reply.

--
Claus
"Vivien" <Vivien@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:9A81ABA0-FBE4-45FA-B2CF-E257810998F2@xxxxxxxxxxxxxxxx
So in other words this is behaving correctly? If I want to trace a packet
from my computer to a web site, how would I do this?

"Joe" wrote:

Vivien wrote:
I have DNS set up on our SBS2003 server with forwarders set to our ISP
DNS
servers. We are able to access the internet and nslookup works fine.
I am
puzzled as to why I can't ping yahoo.com or do a tracert on yahoo.com
or any
other external site. Internal pings work fine.
Thanks

Have a wander through your router configuration, looking for 'ICMP',
which is the protocol used by the ping and tracert commands, but not by
DNS servers or web browsers.

Most routers default to not replying to pings from outside, but can be
configured not to allow any ICMP traffic. Also, the Netgear DG834 (and
probably others) can be configured to control outbound access of TCP and
UDP calls. When it's in that state it cannot also be configured to allow
any ICMP traffic out at all, a serious oversight in the design of its
web configuration software.



.

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