Date: Sun, 19 Mar 2000 09:42:13 -0800 From: "Dan O'Connor" <dan@mostgraveconcern.com> To: <keramida@ceid.upatras.gr>, "Troy Settle" <troy@picus.com> Cc: <freebsd-questions@FreeBSD.ORG> Subject: Re: IPFW Pipes / dummy net Message-ID: <0b8f01bf91ca$7a0da880$0200000a@danco>
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> ipfw add 70000 allow ip from any to any
>
>I got a rule with number 4464. Now this is a strange number of rule to
>get from 70000, but if one sees the two numbers in hex, it's obvious why
>it was done so.
>
>The number 70000 = 0x11170, when AND'ed with a 16-bit mask, 0xffff,
>gives 0x1170 = 4464 :)
Well, you don't even need to do any convoluted math to see that this is a
simple rollover problem, since
70,000 - 65536 = 4464.
--Dan
--
Dan O'Connor
On Matters of Most Grave Concern
http://www.mostgraveconcern.com
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