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