can telnet but not ping

I have a host behind a router and a firewall, the firewall has been
configured to accept connection from this host to a server. I can
telnet to the server from the host but not ping!! How can layer 3 test
fail and yet layer 7 pass with flying colors?

On 14 May 2006 10:37:11 -0700, Dho wrote:
> I have a host behind a router and a firewall, the firewall has been
> configured to accept connection from this host to a server. I can
> telnet to the server from the host but not ping!!

Maybe the firewall drops ping packets. Mine does.

"Dho" <(E-Mail Removed)> writes:

>I have a host behind a router and a firewall, the firewall has been
>configured to accept connection from this host to a server. I can
>telnet to the server from the host but not ping!! How can layer 3 test
>fail and yet layer 7 pass with flying colors?

Proabably because your firewall is blocking pings.

R U blocking ICMP requests?

Yes, it does block ICMP requests. My objective is to connect to the
server like as if I am inside the firewall and use it normally. The
firewall has all of its ports open, for test purposes, when I try to
connect to it, it asks me for my credentials, I then supply my
credentials which I have cross-checked many times and they are fine.

This still does not solve the problem

Dho wrote:
> Yes, it does block ICMP requests. My objective is to connect to the
> server like as if I am inside the firewall and use it normally. The
> firewall has all of its ports open, for test purposes, when I try to
> connect to it, it asks me for my credentials, I then supply my
> credentials which I have cross-checked many times and they are fine.
>
> This still does not solve the problem
>

Come on: The ping requests *are* ICMP packets.
Of course they do not work if ICMP is blocked.

--

Tauno Voipio
tauno voipio (at) iki fi

On Tue, 16 May 2006 05:50:58 -0700, Dho wrote:

> Yes, it does block ICMP requests. My objective is to connect to the
> server like as if I am inside the firewall and use it normally. The
> firewall has all of its ports open, for test purposes, when I try to
> connect to it, it asks me for my credentials, I then supply my
> credentials which I have cross-checked many times and they are fine.

A few questions.

1. What type of firewall are you using?

2. How do you know that all ports are open?

> This still does not solve the problem

If Ping is your only problem.......


--

Regards
Robert

Smile... it increases your face value!


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