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RE: 'no hit' for LVS connection tracking (SYN+ACK not translated)

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: RE: 'no hit' for LVS connection tracking (SYN+ACK not translated)
From: "Jari Takkala" <Jari.Takkala@xxxxxx>
Date: Tue, 16 Aug 2005 09:10:20 -0400
Yes, ip_vs_ftp is loaded. Here is the 'lsmod' output. I had unloaded the 
iptables and ip_conntrack and related modules a couple of days ago. We are 
still experiencing the same problem.

# lsmod
Module                  Size  Used by    Tainted: P
ip_vs_ftp               5956   0
ip_vs_wlc               1604   4  (autoclean)
ip_vs                  73812   7  (autoclean) [ip_vs_ftp ip_vs_wlc]
sg                     36460   0  (autoclean)
dcdesm                 36124   1
dcdbas                 40184   1
autofs                 13460   0  (autoclean) (unused)
bcm5700               106952   0  (unused)
e100                   57028   2

-----Original Message-----
From: lvs-users-bounces@xxxxxxxxxxxxxxxxxxxxxx
[mailto:lvs-users-bounces@xxxxxxxxxxxxxxxxxxxxxx]On Behalf Of Horms
Sent: Tuesday, August 16, 2005 2:46 AM
To: LinuxVirtualServer.org users mailing list.
Subject: Re: 'no hit' for LVS connection tracking (SYN+ACK not
translated)

[snip]

Strange indeed. Do you have the ip_vs_ftp module loaded,
it looks as if this might be missing.

> Looking at the debug output, it looks like IPVS is not matching the
> outgoing packet against its hash table entry. And would anyone be able
> to tell me what the relationship is between the ip_vs module, and the
> ip_tables, iptable_nat, and ip_conntrack modules? It seems like all of
> those modules get loaded at boot time, however we are not doing any
> firewalling on this load balancer ('iptables -L -n' and 'iptables -L
> -n -t nat' show no rules loaded).

ip_vs is not related to the other modules. They are probably
being loaded as a result of running iptables, or perhaps they
are just always loaded at boot.


-- 
Horms

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