similar to: ip_conntrack value not correct !

Hello I''ve got a server with 3Gb of ram and I want to keep 256 for the system and allocate the rest to conntrack ... I''ve tried to change the HASHSIZE of the ip_conntrack but dmesg return me this error ! ip_conntrack version 2.4 (2097152 buckets, 16777216 max) - 236 bytes per conntrack ip_conntrack: falling back to vmalloc. .... I''ve use this "math"

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, 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

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,

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:

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

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

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

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 just got a ''ip_conntrack: table full, dropping packet'' because a p2p-application ran amok. i''ve killed the process but /proc/net/ip_conntrack still got more than 7000 (now stale) entries of 8184 max. since the table is now after ~70 minutes down to 6995 entries, i wonder if i can flush this table manually. the entries in there look like tcp 6 155674

https://bugzilla.netfilter.org/cgi-bin/bugzilla/show_bug.cgi?id=64 Summary: Conntrack-Table is not cleared on inferface down using target MASQUERADE Product: netfilter/iptables Version: linux-2.4.x Platform: i386 OS/Version: other Status: NEW Severity: normal Priority: P2 Component: NAT

--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

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

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

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

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

https://bugzilla.netfilter.org/bugzilla/show_bug.cgi?id=471 Summary: UDP stream DNAT problem Product: netfilter/iptables Version: linux-2.6.x Platform: All OS/Version: All Status: NEW Severity: normal Priority: P2 Component: NAT AssignedTo: laforge@netfilter.org ReportedBy:

https://bugzilla.netfilter.org/cgi-bin/bugzilla/show_bug.cgi?id=91 Summary: conntrack unload loops forever (reproducible) Product: netfilter/iptables Version: linux-2.4.x Platform: All OS/Version: All Status: NEW Severity: normal Priority: P2 Component: connection tracking AssignedTo:

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: