From owner-freebsd-pf@freebsd.org Wed Apr 5 02:18:02 2017 Return-Path: Delivered-To: freebsd-pf@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id EC37BD2F11C for ; Wed, 5 Apr 2017 02:18:02 +0000 (UTC) (envelope-from paul.g.webster@googlemail.com) Received: from mail-yb0-x235.google.com (mail-yb0-x235.google.com [IPv6:2607:f8b0:4002:c09::235]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id B303322E for ; Wed, 5 Apr 2017 02:18:02 +0000 (UTC) (envelope-from paul.g.webster@googlemail.com) Received: by mail-yb0-x235.google.com with SMTP id l201so29391ybf.0 for ; Tue, 04 Apr 2017 19:18:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=yQqWy3EPEuKNZlc5fvOOFN7hS/CvG+dEQdnSvEs0O4o=; b=V8aFhBLcDyxoAHdTD+fGJo3RYWkYFJjqRSDH3Vj4uT/+XkoEuMTAY7pyScFBztNHv8 vH8AA8ya6iXhX1C8UruClAU2Hw6CJC86VOw4wvEVZ0wMNiQqO6uj1fIgdIZegxd/j0uR Vl/Gv6b3I/SDVA84gjcWe1Eu7FnRlSb1I918xMdJobtcaEAyZ55lsAtne31XZ0Vw+Zm5 Zj4yeszogRu7Uj32MSHgN+0JlfBTsAV+1p8TzsuVKLwxqLekMu3nHals4T16PX9d7jRr wpvmW4+nVPdOLo+nGyYJZDFC5lYzBkWFyi6GDajA6emqqNLANRAAgGPKD8kcmR3ncVoV ENXQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=yQqWy3EPEuKNZlc5fvOOFN7hS/CvG+dEQdnSvEs0O4o=; b=DEp6K2OUEv6esFvsI1TmppdGLlTmhexN6iUo+U5XioAuLJk9FemICcrojirM1AlEKI a+OtBMo8PCPodkiNhRj+XrUVVRfUIXHLrw1v6s4zDczQq6fzQy9rpDIjm1GcOc6+EPQX gb4lpqXyA047OJZ782wQovkbZFPggxoLIimRCoipIZh+j86bBsxkIiiO3kttkqfmvdlk Dbj2/EAAdg055t1YOHmnL1YgBQqKgNlOf7LismxF8Kirv3DpFSPXErXbH7Pxrwu331U7 MUcvyBIrbL8P7OGIe5dPgTUXUseH//hBpm6lOqeEERH21dnuMzc4rq5tSxgFTEHx2yBA TF8Q== X-Gm-Message-State: AFeK/H3ewjjc3bAVkl9PkFZxU5HucnQG0e+LlmaW4kZK97OsNco0LzY3VY3mZqYsQC7SAMMQWo0lWrZnUKus/Q== X-Received: by 10.37.70.66 with SMTP id t63mr16715230yba.196.1491358681581; Tue, 04 Apr 2017 19:18:01 -0700 (PDT) MIME-Version: 1.0 Received: by 10.37.37.5 with HTTP; Tue, 4 Apr 2017 19:18:01 -0700 (PDT) From: Paul Webster Date: Wed, 5 Apr 2017 03:18:01 +0100 Message-ID: Subject: Complicated NAT setup To: freebsd-pf@freebsd.org Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-pf@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Technical discussion and general questions about packet filter \(pf\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Apr 2017 02:18:03 -0000 Hey all I am having trouble with freebsd/pf and theattached config my main issue is with the second nat; 'nat on $int_if from any to ($josh_if) -> $josh_xbox' it seems to work for TCP inbound but not for UDP or ICMP I cannot see the reason why; perhaps a binat rule would be better but I could never get it quite working (in either direction) # Macros ext_if=igb0 int_if=igb1 localnet = "{ 172.31.33.2/32, ... lots of ips }" josh_xbox="172.31.33.254" josh_if="gre0" josh_gateway="10.0.0.2" josh_vpnhost="185.157.232.30" tcp_services = "{ ssh, smtp, domain, www, pop3, auth, pop3s, 5901 }" udp_services = "{ domain }" # Global rules set skip on lo0 scrub in all # NAT and redirection nat on $ext_if from $localnet to any -> ($ext_if) # xBox redirection nat on $josh_if from $josh_xbox to any -> ($josh_if) nat on $int_if from any to ($josh_if) -> $josh_xbox rdr-anchor "miniupnpd" # Tables and sets table persist table persist # Filtering rules (Quick first) # Release GRE and QUICK release the protocol pass in quick on $ext_if inet proto 47 from $josh_vpnhost to any no state flags any pass out quick on $ext_if inet proto 47 from any to $josh_vpnhost no state flags any # SSH, DNS, DHCP block quick on $ext_if proto udp from any to any port 67 pass in quick on $int_if proto tcp from 172.31.33.1/24 to 172.31.33.1/32 port 22 pass in quick on $int_if proto {tcp,udp} from 172.31.33.1/24 to 172.31.33.1/32 port 53 pass in quick on $int_if proto udp from any to 172.31.33.1/32 port 63 # Pass out/in the xbox traffic (THIS MUST GO AFTER THE DNS RULES) pass in quick on $int_if from $josh_xbox rtable 1 # Swap packets from the xbox to fib1 routing table pass in quick on $josh_if rtable 0