similar to: ip_conntrack: falling back to vmalloc.

Hello I''ve setuped a bridge with l7-filter and ipp2p. We have every day + or - between 10Mbits and 30 Mbits P2P traffic from + or - 450 customers. When traffic increase. I''ve got this kind of error message : Feb 23 14:26:19 gestor1 kernel: printk: 38 messages suppressed. Feb 23 14:26:19 gestor1 kernel: ip_conntrack: table full, dropping packet. The server is celeron

Hi, my ip_conntrack table is filling up and now my server is dropping packets. I'm running CentOS release 4.4 (Final) on a fairly busy webserver. The table is full of various connections, including a lot of "ESTABLISHED" tcp connections from my webserver (the src is my webserver ip), and some other random connections to my webserver, and many "ASSURED" connections. So why

Hi all. i'm trying to modify some parameters but when system reboots it doesn't load. For the sysctl if I run sysctl -p then it changes /etc/sysctl.conf net.ipv4.netfilter.ip_conntrack_max = 1048576 /etc/modprobe.conf options ip_conntrack hashsize=131072 after reboot results cat /proc/sys/net/ipv4/netfilter/ip_conntrack_max 65536 cat

It seems that the value of net.ipv4.ip_conntrack_max has no so much to do with the conntrack ''cause the when I measure current number of connections i.e.: wc -l /proc/net/ip_conntrack they show as ~20-30 000 connection, but I set sysctl -w net.ipv4.ip_conntrack_max=150000 and packets get dropped, I have to set it to value above 200 000 so that packets are not dropped ?!! Any idea

Hello, I''ve tried to change ipt_conntrack hashsize and con under my debian charge but doesn''t work ! Ive got 2876Mb available for conntrack so I''ve done (according to some previous mail and this http://www.wallfire.org/misc/netfilter_conntrack_perf.txt) CONNTRACK_MAX = 2876 * 64 = 184064 HASHSIZE = 2876 * 8 = 23002 But the near power of 2 is 2^16 = 131072

I *think* we are finally making some progress in tracking our elusive performance problems. After employing a second 10Mb link from our ISP, along with another firewall box and proxy, we were able to determine the problem *is* our firewall. We don''t know exactly why yet, but our sporadic slow web access seems to have gone away since swapping a new firewall in this morning. The

I''ve been having all sorts of problems the last few days with my connection slowing down and then stopping working. Rebooting the router box always fixes it for a while. When I couldn''t hit any pages this morning, and couldn''t even ssh into the router, I dug around a little. When I did a dmesg on the router, there were a bunch of errors saying: ip_conntrack: table full,

Hi, I know that this is a known problem but I don''t know the solution. I have a linux server with iptables, kernel 2.4.17. Now in logs appear (Debian): kern.log: Mar 1 23:12:55 cpie kernel: ip_conntrack: table full, dropping packet. Mar 1 23:13:56 cpie last message repeated 10 times Mar 1 23:13:59 cpie last message repeated 3 times Mar 1 23:14:10 cpie kernel: NET: 1 messages

Hey guys, I have several Linux routers in place at high-usage locations (student apartment complexes). I''m having trouble with some of the routers which use 6Mbit DSL lines as their Internet feed. The routers use PPPoE and perform NAT. During peak usage periods, the routers are dropping alot of packets. I''m lead to believe this is because there are too many active

http://bugzilla.netfilter.org/show_bug.cgi?id=792 Summary: ip_conntrack keep updating incorrect entry in conntrack table after default routing changed Product: netfilter/iptables Version: linux-2.6.x Platform: x86_64 OS/Version: Fedora Status: NEW Severity: minor Priority: P5 Component:

I was trying to do what the article at http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.performance.html#conntrack_filling_tables <http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.performance.html#conntrack_filling_tables%3C/blockquote%3E%3C/div%3E> suggested My iptables rules are ------------------------------------------------------------------------ #that's what the

https://bugzilla.netfilter.org/show_bug.cgi?id=830 Summary: ??iptables????????? Product: iptables Version: unspecified Platform: All OS/Version: RedHat Linux Status: NEW Severity: major Priority: P5 Component: iptables AssignedTo: netfilter-buglog at lists.netfilter.org ReportedBy: higkoohk

Hello I''ve got Debian sarge 2.6.18 Traffic Manager setup as a bridge. This server is p4 hyperthreading with 3Gb of memory. Yesterday on 10:00pm start to see in my syslog that ip_conntrack was full and on 12:00pm the server was frozen ... I precise that I''ve already change CONNTRACK_MAX=131072 and HASHSIZE=65536 values I''m not sure that is a direct conntrack

Hi all, i need advice how can i limit ip_conntrack per IP. clients of network that i support often uses torrent , DC++ , eMule clients and i have lost packages because they open too many ports. i have traffic control limits but this obviously isn''t enough Any advance how to prevent server from this kind problems will be welcome. Best regards Emil

--mYCpIKhGyMATD0i+ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Netfilter Core Team Security Advisory =20 CVE: CAN-2003-0187 Subject: Netfilter / Connection Tracking Remote DoS Released: 01 Aug 2003 Effects: Any remote user may be able to DoS a machine

I have just completed the installation of a new firewall running Shorewall 1.4 on Mandrake 9.2 for our campus network. It appears to be running fairly well so far, but is generating significantly more log entries than our previous linux 2.0.x firewall... Our previous firewall enjoyed more than 6 years of 24/7 operation with no downtime before we finally decided it needed more horsepower, and

https://bugzilla.netfilter.org/show_bug.cgi?id=1123 Bug ID: 1123 Summary: conntrackd will not accept connection records into kernel table from another machine Product: conntrack-tools Version: unspecified Hardware: x86_64 OS: other Status: NEW Severity: major Priority: P5

https://bugzilla.netfilter.org/bugzilla/show_bug.cgi?id=549 Summary: kernel oops when trying to remove ip_conntrack module Product: netfilter/iptables Version: linux-2.6.x Platform: x86_64 OS/Version: Fedora Status: NEW Severity: critical Priority: P2 Component: unknown AssignedTo:

Hi all, Recently I''ve faced a trouble about some networking problem in a Xen server. dom0 debian lenny kernel 2.6.26-1-xen-686 #1 SMP xen_caps : xen-3.0-x86_32p 4 domU all the same debian lenny kernel 2.6.26-1-xen-686 #1 SMP with 256M memory dom0 has access to 4 CPUs: xm vcpu-list Name ID VCPU CPU State Time(s) CPU Affinity Domain-0

https://bugzilla.netfilter.org/bugzilla/show_bug.cgi?id=511 Summary: Premature ip_conntrack timer expiry on 3+ window size advertisements Product: netfilter/iptables Version: linux-2.6.x Platform: All OS/Version: All Status: NEW Severity: minor Priority: P2 Component: ip_conntrack