Date: Tue, 17 Jun 2003 08:59:13 -0400 (EDT) From: jaime@snowmoon.com To: freebsd-questions@freebsd.org Subject: Re: ping: sendto: No buffer space available Message-ID: <20030617084754.E94567@malkav.snowmoon.com> In-Reply-To: <00139E16-A0C0-11D7-BE91-0030659A531A@vvi.com> References: <00139E16-A0C0-11D7-BE91-0030659A531A@vvi.com>
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On Tue, 17 Jun 2003, lbland wrote: > I don't know, but it may be a router loop problem in the ISP router > tables. Those tables can change dynamically and can cause intermittent > issues like you explained. I had three pings going at the same time. One to the ISP's DNS resolver, one to the far end of the T-1, and one to the ethernet interface on the router at my site. The router and firewall are on opposite ends of the same cable. When the pings to the DNS resolver gave the "No buffer space" message, so did the other two pings. This means that the break down is not any further up stream than the router. I'm now running pings to a host on the same LAN as the firewall. The next time that the "No buffer space" message appears on the pings to the DNS resolver, I'll check the pings to the internal host. If they have the same problem, then I'm experiencing an OS level issue of some kind. OK, it happened while I was typing this. :) Results: internal host remained ping-able while the other three pings were all giving "No buffer space" messages. This is starting to sound like some kind of packet over-load on the "public" side of my FreeBSD/ipfw based firewall. Does anyone have any advice on how to confirm this? bash-2.05b$ uname -a FreeBSD cerberus.cairodurham.org. 4.7-STABLE FreeBSD 4.7-STABLE #0: Sat Oct 12 12:54:03 EDT 2002 jkikpole@cerberus.cairodurham.org.:/usr/obj/usr/src/sys/CERBERUS i386 Thanks in advance, Jaime
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