Date: Thu, 7 Aug 2014 17:42:47 +0200 From: Alban Hertroys <haramrae@gmail.com> To: freebsd-questions@freebsd.org Subject: How to set up wired+wireless using isc-dhcpd&bind9 so that IP's are in the same subnet? Message-ID: <1FE21504-EAA2-4814-A371-25039EA405EB@gmail.com>
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Hi all, I currently have a setup at home where I have a FreeBSD 9-STABLE gateway = with both an em0 and an ath0 adapter (and a 3rd adapter to the = internet). Wired devices such as the Mac, the A/V receiver, the playstation and the = TV are configured in one subnet (=93wired=94) with IP-ranges in = 10.0.0.0/24. Wireless devices such as the iPad and the mobile phone are configured in = another subnet (=93wireless=94) in IP-ranges 10.0.1.0/24. That works like a charm, except=85 Apps on the iPad to control the TV or = the playstation _insist_ that both devices are on the same subnet. = Apparently they aren=92t, as those apps can=92t find my wired devices. I have been trying to fix that, but I can=92t seem to wrap my head = around how to do that. * I currently have 2 bind9 zone files: wired.db & wireless.db and their = reverse files: wired.rev & wireless.rev. To achieve what those apps seem = to want I suppose I need to merge both zone-files into a single zone, = such that the domain names are the same between both networks (assuming = that domains and zones are equivalent). * My (isc-)dhcpd.conf currently has 2 subnets. I am under the impression = that I need to keep it that way, as either subnet requires its own = gateway and DNS server addresses - they are on different = interfaces/routes. I=92ll probably have to do something with the inet = addresses and masks to make both subnets look like a single one from the = outside, but how? My attempts so far have mostly caused errors about = overlapping ranges from dhcpd or broke networking entirely. I=92ve been trying to merge both subnets under 10.0.0.0/24 as subnets = 10.0.0.0/25 + 10.0.0.128/25. That didn=92t work, probably because it = breaks broadcasts since the =93wired" subnet won=92t have broadcast = address 10.0.0.255 in its range, or if it does, it probably translates = to the =93wireless=94 subnet and goes to the wrong gateway/DNS. I=92ve also been trying to find information how to set up bind zone = files for C-level domains, as with such a setup my two IP-ranges should = fall within the same domain, which should achieve the same thing = (provided those apps are willing to accept a C-level domain range, I = imagine they might not for security considerations). I can=92t be the first to attempt something like this, but Google seems = to disagree. I=92d appreciate some help, or better yet, a working = similar configuration that I can compare mine against as I=92m obviously = a bit out of my league here. Regards, Alban Hertroys -- If you can't see the forest for the trees, cut the trees and you'll find there is no forest.
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