> I wonder if your firewall is blocking ping scans. Disable the 
> firewall and see 
> if you can ping google.

well, you are right - disabling the firewall makes ping work again.
maybe it is easier to build my own script from scratch instead of using
the one from gentoo-security-guide.
 
> In my firewall, I do:
> 
> # Block ping scans
> iptables -A INPUT -p icmp --icmp-type echo-request -j DROP
> # ... but not coming from our LAN
> iptables -A FORWARD -p icmp --icmp-type echo-reply -j DROP 
> iptables -A OUTPUT -p icmp --icmp-type echo-reply -j DROP
> 

ok, thanks for the hint!

simon


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