In article <200201111708.PAA06707@wilde.uol.com.br>,
 <ricardorsj@uol.com.br> wrote:
>Hello.
>
>We have here one netbsd that servers as main proxy for all out network
>(200 machines). It worked OK until today's morning.
>
>The machine has (had) a fxp0 card. The problem follows:
>
>Today the servers was responding slowly and I thought it was our ADSL
>(used only for web access). I restarted it.
>
>Our machine is now intermitent. When I ping some machine, I must wait at
>least one minute for it to respond. (other machines can talk normally).
>The only machine I can ping ok is our main firewall, any other it's very
>slowly to respond. The problem is that although I can ping our firewall,
>I can ping no machine except that one. (yes, the configuration is ok
>because its working and the firewalls is forwarding packets for other
>machines).

Your DNS is borken. ping -n ip-address should work instantly.

christos