65 lines
2.4 KiB
Nix
65 lines
2.4 KiB
Nix
{ config, pkgs, ... }:
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with import <stockholm/lib>;
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{
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networking.networkmanager.unmanaged = [ "int0" ];
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networking.interfaces.int0.ipv4.addresses = [{
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address = "10.42.0.1";
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prefixLength = 24;
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}];
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services.dhcpd4 = {
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enable = true;
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interfaces = [ "int0" ];
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extraConfig = ''
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option subnet-mask 255.255.255.0;
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option routers 10.42.0.1;
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option domain-name-servers 10.42.0.1;
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subnet 10.42.0.0 netmask 255.255.255.0 {
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range 10.42.0.100 10.42.0.200;
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}
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'';
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machines = [
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{ ethernetAddress = "a8:a6:48:65:ce:4c"; hostName = "tv"; ipAddress = "10.42.0.3"; }
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{ ethernetAddress = "3c:2a:f4:22:28:37"; hostName = "drucker"; ipAddress = "10.42.0.4"; }
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{ ethernetAddress = "80:7d:3a:67:b7:01"; hostName = "s20-tv"; ipAddress = "10.42.0.10"; }
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{ ethernetAddress = "80:7d:3a:68:04:f0"; hostName = "s20-drucker"; ipAddress = "10.42.0.11"; }
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{ ethernetAddress = "80:7d:3a:68:11:a5"; hostName = "s20-wasch"; ipAddress = "10.42.0.12"; }
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{ ethernetAddress = "80:7d:3a:67:bb:69"; hostName = "s20-stereo"; ipAddress = "10.42.0.13"; }
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{ ethernetAddress = "ec:b5:fa:07:78:16"; hostName = "hue-bridge"; ipAddress = "10.42.0.21"; }
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{ ethernetAddress = "80:8d:b7:c5:80:dc"; hostName = "arubaAP"; ipAddress = "10.42.0.99"; }
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];
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};
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services.dnsmasq = {
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enable = true;
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resolveLocalQueries = false;
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extraConfig = ''
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local=/gg23/
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domain=gg23
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expand-hosts
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listen-address=10.42.0.1
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interface=int0
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'';
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};
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boot.kernel.sysctl."net.ipv4.ip_forward" = 1;
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krebs.iptables.tables.filter.INPUT.rules = [
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{ predicate = "-i int0 -p udp --dport 53"; target = "ACCEPT"; } # dns
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];
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krebs.iptables.tables.filter.FORWARD.rules = [
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{ v6 = false; predicate = "-d 10.42.0.0/24 -o int0 -m conntrack --ctstate RELATED,ESTABLISHED"; target = "ACCEPT"; }
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{ v6 = false; predicate = "-s 10.42.0.0/24 -i int0"; target = "ACCEPT"; }
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{ v6 = false; predicate = "-o int0"; target = "REJECT --reject-with icmp-port-unreachable"; }
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{ v6 = false; predicate = "-i int0"; target = "REJECT --reject-with icmp-port-unreachable"; }
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];
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krebs.iptables.tables.nat.PREROUTING.rules = [
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{ v6 = false; predicate = "-s 10.42.0.0/24"; target = "ACCEPT"; precedence = 1000; }
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];
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krebs.iptables.tables.nat.POSTROUTING.rules = [
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{ v6 = false; predicate = "-s 10.42.0.0/24 ! -d 10.42.0.0/24"; target = "MASQUERADE"; }
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];
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}
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