Messages in this thread | | | From | David Lang <> | Date | Tue, 6 Nov 2001 10:39:31 -0800 (PST) | Subject | Re: ip_conntrack & timing out of connections |
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the tcp dimeout is 60 seconds and the ip_conntrack timeout is 120 seconds.
I ran into this myself a couple days ago and have sent the info to Rusty and to the netfilter mailing list (although only to the list this morning so I don't know if there is a response there yet)
David Lang
On Tue, 6 Nov 2001 pcg@goof.com wrote:
> Date: Tue, 6 Nov 2001 12:19:47 +0100 > From: pcg@goof.com > To: linux-kernel@vger.kernel.org > Subject: ip_conntrack & timing out of connections > > linux-2.4.13-ac5 (other versions untested) has this peculiar behaviour: If I > "killall -STOP thttpd", I, of course, still get connection requests which > usually time out: > > tcp 238 0 217.227.148.85:80 213.76.191.129:3120 CLOSE_WAIT > tcp 162 0 217.227.148.85:80 213.76.191.129:3128 CLOSE_WAIT > tcp 238 0 217.227.148.85:80 213.76.191.129:3136 CLOSE_WAIT > tcp 162 0 217.227.148.85:80 213.76.191.129:3152 CLOSE_WAIT > tcp 134 0 217.227.148.85:80 66.42.121.15:3305 CLOSE_WAIT > tcp 162 0 217.227.148.85:80 213.76.191.129:3160 CLOSE_WAIT > tcp 279 0 217.227.148.85:80 62.83.11.19:2742 CLOSE_WAIT > > however, after some time, I get many of these messages: > > Nov 6 02:39:55 doom kernel: ip_conntrack: table full, dropping packet. > > /proc/net/ip_conntrack has lots of connections like these: > > tcp 6 430665 ESTABLISHED src=213.76.191.129 dst=217.227.148.85 sport=3881 dport=80 src=217.227.148.85 dst=213.76.191.129 sport=80 dport=388 1 [ASSURED] use=1 > > that is, connections to port 80. a grep dport=80 in ip_conntrack gives me > 3768 lines, where netstat -t only shows 159 connections, so it seems that > conntrack has a problems with time-outs (or something similar). > > -- > -----==- | > ----==-- _ | > ---==---(_)__ __ ____ __ Marc Lehmann +-- > --==---/ / _ \/ // /\ \/ / pcg@goof.com |e| > -=====/_/_//_/\_,_/ /_/\_\ XX11-RIPE --+ > The choice of a GNU generation | > | > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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