Date: Fri, 8 Nov 2013 09:08:25 -0500 From: Jason Hellenthal <jhellenthal@dataix.net> To: claudiu vasadi <claudiu.vasadi@gmail.com> Cc: "freebsd-pf@freebsd.org" <freebsd-pf@freebsd.org> Subject: Re: FreeBSD 9.1-STABLE - pf rule being ignored Message-ID: <6BF6F30B-F937-4C59-819A-770489B90343@dataix.net> In-Reply-To: <C55476A9-F352-4615-9DFB-8705D583DCC1@dataix.net> References: <CAM-i3ihX43UxmrM-ThOP=nK2qr=jMpzab-zB7o_x--C2eDWUKg@mail.gmail.com> <C55476A9-F352-4615-9DFB-8705D583DCC1@dataix.net>
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--Apple-Mail-9A1576E9-F8B0-4AA2-BB10-AB397DBC40A7 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Should say too . . . don't forget to either skip on lo0 or pass on lo0 > On Nov 8, 2013, at 9:05, Jason Hellenthal <jhellenthal@dataix.net> wrote: >=20 > Curious if your line breaks are correct ? Your block and pass rule appear t= o be on the same line. >=20 > This should do it . . .=20 >=20 > block in all > block return in quick from !$internal_ip to $external_ip > pass out all keep state >=20 >=20 > But if you already have a block all rul there is no need for the second as= your already blocking all traffic so I might suggest this not mowing your t= opology. >=20 > I also would not suggest "return" for non internal traffic except for spec= ific targeted services that it might affect. > . . .=20 > :BEGIN >=20 > spoof on lo0 > spoof on $ext_if >=20 > block all > pass out quick from $me > pass in quick from $int to $me >=20 > :END=20 >=20 > And that should accomplish what you are trying to do IIUC. >=20 > You can use pftop to verify packets on hit rules. >=20 >> On Nov 8, 2013, at 8:41, claudiu vasadi <claudiu.vasadi@gmail.com> wrote:= >>=20 >> Hi all, >>=20 >> I have a 9.1-STABLE r251615 acting as a firewall. >>=20 >> The rules: >> block in all pass out all keep state [...] block return from !$internal_i= p >> to $external_ip >>=20 >>=20 >>=20 >> What I want is to block all the network except $internal to from accessin= g >> $external_ip. For some reason, the above rule simply does not work. >> However, the below does work and block everyone except $internal_ip: >>=20 >> block return from $internal_net/24 to $external_ip pass from $internal_ip= >> to $external_ip >>=20 >>=20 >> Why is this? I remember reading the docs for OpenBSD 4.5 and I guess it >> should work like in the first example. >>=20 >> PS: Yes, I can see the rule with pfctl -sr and it does translate properly= . >>=20 >> --=20 >> Best regards, >> Claudiu Vasadi >> _______________________________________________ >> 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" --Apple-Mail-9A1576E9-F8B0-4AA2-BB10-AB397DBC40A7 Content-Type: application/pkcs7-signature; name=smime.p7s Content-Disposition: attachment; filename=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIUOTCCBjAw ggUYoAMCAQICAwaijjANBgkqhkiG9w0BAQsFADCBjDELMAkGA1UEBhMCSUwxFjAUBgNVBAoTDVN0 YXJ0Q29tIEx0ZC4xKzApBgNVBAsTIlNlY3VyZSBEaWdpdGFsIENlcnRpZmljYXRlIFNpZ25pbmcx ODA2BgNVBAMTL1N0YXJ0Q29tIENsYXNzIDEgUHJpbWFyeSBJbnRlcm1lZGlhdGUgQ2xpZW50IENB 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