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Date:      Fri, 1 Feb 2002 06:49:57 +0100
From:      Mark Rowlands <fuc952d@tninet.se>
To:        <darryl@osborne-ind.com>, <freebsd-questions@FreeBSD.ORG>
Subject:   Re: Firewall log question
Message-ID:  <20020201054945.D527A37B41D@hub.freebsd.org>
In-Reply-To: <002801c1aaa8$9018da20$0701a8c0@darryl>
References:  <002801c1aaa8$9018da20$0701a8c0@darryl>

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On Thursday 31 January 2002 11:42 pm, Darryl Hoar wrote:
> Greetings,
> I have 4.4-Stable running as a firewall with IPFILTER.
>
> We recently had to replace our aDSL router/modem with a
> different make/model.
>
> I have started seeing a ton of the following in the firewall_log
> file.
>
> ipmon[104]: 15:36:52.779531 xl0 @0:3 b 10.0.0.1, router -> 10.0.0.255,
> router PR udp len 20 72 IN

> Can someone help me decipher this, so I can figure out the cause and
> fix it?

at 15:36:52.779531 rule 3 blocked an inbound broadcast packet (udp protocol 
520 (routed possibly?) ) from 10.0.0.1 and kindly logged it for you 

ipfstat  -in   will tell exactly what rule 3 (the offending rule in this 
case) looks like

perhaps it is 

 @3 block in log quick on xl0 from 10.0.0.0/8 to any

> Can someone help me decipher this, so I can figure out the cause and
> fix it?
>
> thanks,
> Darryl
>
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