Hello,

I have quite confusing problem. Sometimes (once in few days) my server stops responding and seems to be off from the net. When I log in locally and try to ping elsewhere all I get is:
ping: sendto: no buffer space available

It will be back online if I restart dhclient script from /etc/rc.d. 
The following is from /var/log/messages:

May 15 18:24:34 experiment dhclient: Sending on   BPF/rtk0/00:50:fc:47:26:23
May 15 18:24:34 experiment dhclient: Sending on   Socket/fallback
May 15 18:24:35 experiment dhclient: DHCPREQUEST on rtk0 to 255.255.255.255 port 67
May 15 18:24:35 experiment dhclient: send_packet: No buffer space available
May 15 18:24:43 experiment dhclient: DHCPREQUEST on rtk0 to 255.255.255.255 port 67
May 15 18:24:43 experiment dhclient: DHCPACK from 130.234.176.4

And then it's up. 

I'm running NetBSD 1.5.3 RC2 and the arch is i386. I have included my kernel configuration on my web pages at http://ks.ping-viini.org:81/~ks/experiment

Thanks in advance.