Date: Tue, 28 Oct 2014 08:30:49 +0000 From: "Spenst, Aleksej" <Aleksej.Spenst@harman.com> To: Adam McDougall <mcdouga9@egr.msu.edu>, "freebsd-pf@freebsd.org" <freebsd-pf@freebsd.org> Subject: AW: How to block IP range Message-ID: <CBA35483CE5B4D4B804BF128A77A61650E9A183E@HIKAWSEXMB02.ad.harman.com> In-Reply-To: <544E7883.1000705@egr.msu.edu> References: <CBA35483CE5B4D4B804BF128A77A61650E9A16A7@HIKAWSEXMB02.ad.harman.com> <544E7883.1000705@egr.msu.edu>
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Hi Adam, > From the manpage in 10: > Ranges of addresses are specified by using the '-' operator. For > instance: "10.1.1.10 - 10.1.1.12" means all addresses from 10.1.1.10 to 1= 0.1.1.12, hence addresses 10.1.1.10, 10.1.1.11, and 10.1.1.12. It's interesting that when I write this rule in pf.conf: block in quick on eth0 from "10.0.0.1 - 10.0.0.100" to 10.0.0.0 and load the rules then pfctl does not complain about any syntax errors. However, if I look what rules are loaded with "pfctl -s rules" then I see o= nly: block drop in quick on eth0 inet from 10.0.0.1 to 10.0.0.0 So, it seems that my pfctl takes only the first address from the range and = generates only 1 rule for this IP. Hmm... Thanks, Aleksej. -----Urspr=FCngliche Nachricht----- Von: owner-freebsd-pf@freebsd.org [mailto:owner-freebsd-pf@freebsd.org] Im = Auftrag von Adam McDougall Gesendet: Montag, 27. Oktober 2014 17:53 An: freebsd-pf@freebsd.org Betreff: Re: How to block IP range On 10/27/2014 12:11, Spenst, Aleksej wrote: > Hi All, >=20 > Is there any syntax to block a certain IP range? > For example, I need to block only 100 IPs in the range:=20 > 10.0.0.1-10.0.0.100 I can't use the netmask like "block on eth0 from 10.0= .0/24" since this will block 256 addresses. > I don't want also to write all IPs separated by comma like "block on eth0= from {10.0.0.1,10.0.0.2,.....}" since this will generate 100 separate rule= s (and this is also a very long rule). > Are there any other ways? >=20 > Thank you! > Aleksej. >=20 >=20 >=20 >From the manpage in 10: Ranges of addresses are specified by using the '-' operator. For instance: "10.1.1.10 - 10.1.1.12" means all addresses from 10.1.1.10 to 10.= 1.1.12, hence addresses 10.1.1.10, 10.1.1.11, and 10.1.1.12. _______________________________________________ freebsd-pf@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-pf To unsubscribe, send any mail to "freebsd-pf-unsubscribe@freebsd.org"
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