Re: ping broadcast into forward chain?? (IN=eth0 OUT=eth0)!!

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----- Original Message ----- From: "Jan Engelhardt" <jengelh@xxxxxxxxxx>
To: "Julio A. Romero" <julioarr@xxxxxxxxxxxx>
Cc: <netfilter@xxxxxxxxxxxxxxx>
Sent: Monday, September 19, 2011 11:55 AM
Subject: Re: ping broadcast into forward chain?? (IN=eth0 OUT=eth0)!!


Bah, don't strip the CC, and don't top-post.

On Monday 2011-09-19 17:43, Julio A. Romero wrote:

In the INPUT chain!!??

No, why? It was not a broadcast packet. Your syslog itself says:
DST=10.6.15.246.

but 10.6.15.246 is outside of my internal networks ?? and the interfaces IN/OUT is the same external iface of the BOX; the packets don't go through the box or yes?! what happen if I remove the rule to log?



----- Original Message ----- From: "Jan Engelhardt" <jengelh@xxxxxxxxxx>
To: "Julio A. Romero" <julioarr@xxxxxxxxxxxx>
Cc: <netfilter@xxxxxxxxxxxxxxx>
Sent: Monday, September 19, 2011 11:38 AM
Subject: Re: ping broadcast into forward chain?? (IN=eth0 OUT=eth0)!!


On Monday 2011-09-19 17:29, Julio A. Romero wrote:

This is a real scenario:

My external eth0=10.6.100.109, eth0:0=10.6.100.104
My internal eth2=10.6.13.254
My internal networks=10.6.11.0/24,10.6.13.0/24,10.6.40.0/24

Why these packests [below] appear into the forward chain?

Where else should they appear?

Sep 19 10:44:32 firewall kernel: [316561.880144] FW:FWD:netfilter_fwd:?
IN=eth0 OUT=eth0 SRC=10.28.10.76 DST=10.6.15.246 LEN=60 TOS=0x00
PREC=0x00 TTL=54 ID=17064 PROTO=ICMP TYPE=8 CODE=0 ID=512 SEQ=12558
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No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 9.0.914 / Virus Database: 271.1.1/3906 - Release Date: 09/19/11
02:34:00



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--------------------------------------------------------------------------------



No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 9.0.914 / Virus Database: 271.1.1/3906 - Release Date: 09/19/11 02:34:00

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