[KLUG Members] webmail saga continues! story at 11...

[Adam Williams]

> My saga of the unworking webmail applications continues.  However, today, I made
> a strange discovery.
> I cannot ping www.hotmail.com from ANY computer at my work place.  We all use a
> proxy for our browers.

But what does traceroute (tracert on M$) show?  It could be the end-node
is filtering out ICMP traffic; this is pretty common.

> I cannot ping www.hotmail.com from the IPcop Box.

Try traceroute.

Have you ensured that ECN is *DISABLED*?

> I can ping www.google.com from any computer and IPcop and IPcop Client boxes...

So IP layer connectivity works.  If you can ping www.google.com,
www.kalamazoolinux.org, and www.yahoo.com then your network setup is
fundamentally sound.

I cannot ping www.hotmail.com, they are clearly performing ICMP
filtering.

> What kind of setup would our network have that would block me from pinging
> www.hotmail.com but make my browers be ablse to view www.hotmail.com?

You are not ensured the ability to ping any point on the internet.  Try
traceroute and see how far your packet makes it.

> But then any client that is behind my IPcop box are NOT be able to browse to
> www.hotmail.com?

Again, again, again, have you checked the ECN setting?

Have you checked the proxy log when attempting to load the site and seen
if there were any messages there?  I believe ipCop has a built in log
viewer.

> I'm completely stumped. =/
> also thank you very, very, very, very much for all of you have been sending me
> countless emails with tips, explanations, etc, etc.