Re: DNAT sporadically doesn't replace destination IP address

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>>> On 22/05/2008 at 18:29, in message <48359F66.50503@xxxxxxxxx>, Patrick McHardy
<kaber@xxxxxxxxx> wrote:
> Kris Op de Beeck wrote:
>> 
>>>>> On 22/05/2008 at 17:28, in message <4835913A.4020909@xxxxxxxxx>, Patrick
>> McHardy <kaber@xxxxxxxxx> wrote:
>>>> [  927.204000] nf_ct_tcp: invalid SYNIN= OUT= SRC=192.168.1.30 DST=10.9.9.29 
> 
>>> LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=25745 DF PROTO=TCP SPT=52775 DPT=80 
>>> SEQ=2154890499 ACK=0 WINDOW=5840 RES=0x00 SYN URGP=0 OPT 
>>> (020405B40402080A000264810000000001030307) UID=1000
>>>> For those DST ip addresses I've got failures
>>> Which kernel is this test running on? That message
>>> is gone since 2.6.22.
>> 
>> s3p@burnin:~$ uname -a
>> Linux burnin 2.6.22-14-generic #1 SMP Sun Oct 14 23:05:12 GMT 2007 i686 
> GNU/Linux
>> 
>> This was the config where I detected the problem. (Ubuntu 7.10)
> 
> 
> I didn't find the reason why your kernel even has that message
> (didn't try to hard though). Could you rerun the test with a
> more current kernel, like 2.6.24 or 2.6.25 please?

Upgraded from Ubuntu 7.10 to 8.04

s3p@burnin:~$ uname -a
Linux burnin 2.6.24-16-generic #1 SMP Thu Apr 10 13:23:42 UTC 2008 i686 GNU/Linux

[ 7651.979390] printk: 8 messages suppressed.
[ 7651.979395] nf_ct_tcp: invalid packet ignored IN= OUT= SRC=192.168.1.24 DST=10.9.9.23 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=47660 DF PROTO=TCP SPT=42451 DPT=80 SEQ=3352606539 ACK=0 WINDOW=5840 RES=0x00 SYN URGP=0 OPT (020405B40402080A001C104E0000000001030307) UID=1000
[ 7656.667006] nf_ct_tcp: invalid packet ignored IN= OUT= SRC=192.168.1.15 DST=10.9.9.14 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=59137 DF PROTO=TCP SPT=49734 DPT=80 SEQ=3327322852 ACK=0 WINDOW=5840 RES=0x00 SYN URGP=0 OPT (020405B40402080A001C14E50000000001030307) UID=1000

Nothing works now.  Can't even ping the modems...




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