ping questions

[robert]

On 22.12.2015 09:42, Crispin Wellington wrote:
> You pinging the live IP?
yes
>
> Maybe your ISP or your modem blocks ICMP ECHO?
but why does ping work when I am logged in "behind" the modem?
it is still the same IP.
robert

>
> Crispin
>
> On Tue, Dec 22, 2015 at 4:39 PM, robert <robert at redcor.ch 
> <mailto:robert at redcor.ch>> wrote:
>
>     Hi there,
>
>
>     At work I have an internet connection with a static IP. A Zyxel
>     isdn modem is connected to it.
>     Trying to ping that IP from outside fails (100% loss).
>
>     When I am logged in a pc in a private network behind the modem, I
>     can ping the that same IP without loss.
>
>     Why is that so?
>
>     thanks for your info
>     robert
>
>
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