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Date:      Sun, 16 Jan 2000 12:21:19 -0500 (EST)
From:      Omachonu Ogali <oogali@intranova.net>
To:        "Rodney W. Grimes" <freebsd@gndrsh.dnsmgr.net>
Cc:        Brian Gallucci <briang@expnet.net>, FreeBSD <freebsd-questions@FreeBSD.ORG>, ipfw@FreeBSD.ORG
Subject:   Re: Hmmm
Message-ID:  <Pine.BSF.4.10.10001161220420.78224-100000@hydrant.intranova.net>
In-Reply-To: <200001141735.JAA36120@gndrsh.dnsmgr.net>

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Windows isn't that retarded, it doesn't send incorrect IP headers out onto
the wire. Is your router connected to a hub at your ISP/uplink?

Omachonu Ogali
Intranova Networking Group

On Fri, 14 Jan 2000, Rodney W. Grimes wrote:

> > If you're connected to a hub then that means someone else on that hub has
> > address space in that area, otherwise, something's barfing on you.
> 
> It's just windblows braindamage, it likes to send netbios IP traffic
> to really strange IP addresses using really strange source addresses
> some times.
> 
> Easy fix is to drop all any 138 to any 138, and any 137 to any 137,
> unless your fool enough to want to run netbios over the internet,
> in which case you'll have to allow some specifc IP's to work.
> 
> > 
> > Omachonu Ogali
> > Intranova Networking Group
> > 
> > On Thu, 13 Jan 2000, Brian Gallucci wrote:
> > 
> > > This is really weird ->
> > > 
> > > ipfw: 1800 Deny UDP 216.174.91.28:138 216.174.91.31:138 in via xl0
> > > ipfw: 1800 Deny UDP 216.174.91.28:138 216.174.91.31:138 in via xl0
> > > ipfw: 1800 Deny UDP 216.174.91.28:138 216.174.91.31:138 in via xl0
> > > ipfw: 1800 Deny UDP 216.174.91.28:138 216.174.91.31:138 in via xl0
> > > ipfw: 1800 Deny UDP 216.174.91.28:137 216.174.91.31:137 in via xl0
> > > ipfw: 1800 Deny UDP 216.174.91.28:137 216.174.91.31:137 in via xl0
> > > ipfw: 1800 Deny UDP 216.174.91.28:137 216.174.91.31:137 in via xl0
> > > ipfw: 1800 Deny UDP 216.174.91.28:137 216.174.91.31:137 in via xl0
> > > ipfw: 1800 Deny UDP 216.174.91.28:138 216.174.91.31:138 in via xl0
> > > 
> > > We don't own any address space on 216.174.91.0 at all !!
> > > 
> > > Can someone tell what this means ??? Am I missing something..
> > > 
> > > I think it should look something like - >
> > > 
> > > ipfw: 1800 Deny UDP " OUR ADDRESS ":138 216.174.91.31:138 in via xl0
> > > ipfw: 1800 Deny UDP " OUR ADDRESS ":138 216.174.91.31:138 in via xl0
> > > 
> > > Thanks
> > > -Brian
> > > 
> > > 
> > > 
> > > 
> > > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > > with "unsubscribe freebsd-ipfw" in the body of the message
> > > 
> > 
> > 
> > 
> > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > with "unsubscribe freebsd-ipfw" in the body of the message
> > 
> 
> 
> -- 
> Rod Grimes - KD7CAX @ CN85sl - (RWG25)               rgrimes@gndrsh.dnsmgr.net
> 



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