Simon Bruder
3d880316de
This only complicates many things and creates too much overhead on such a slow connection.
99 lines
2.6 KiB
Nix
99 lines
2.6 KiB
Nix
# Home network configuration
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# (2.5GbE clients)
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# | |
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# +----------+ +----------+
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# | | | | | | (1GbE clients)
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# | | | | | +|-|-|-|-|+
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# +---+----+ +-+-+-+-+-+ |5 4 3 2 1|
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# |upstream| | 1 2 3 4 | |TL-SG105 |
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# +--------+ | shinobu | +---------+
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# +---------+
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#
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# It consists of shinobu as a router (this configuration),
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# connected to a TP-LINK TL-SG105E “smart managed” (i.e., it can do VLANs) 5-port switch.
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# The upstream comes (for now) from a PŸUR “WLAN-Kabelbox” (Compal CH7467CE).
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# Sadly, I could not enable bridge mode on it, so the packets now go through (at least) three layers of NAT:
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# device → NAT on shinobu → NAT on plastic router → PŸUR CGNAT
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#
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# Because the switch only supports GbE,
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# the two clients I currently have with support for 2.5GbE are connected
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# directly to the two remaining network interfaces on shinobu.
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# Once I have more devices with support for 2.5GbE
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# or I find a good deal on a matching switch,
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# I will change this.
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#
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# Wireless is configured by providing the whole hostapd configuration file as a secret.
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# Once nixpkgs PR 222536 is merged, I will migrate to using the NixOS module.
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# Thanks to Intel’s wisdom, it’s not possible to use 5GHz in AP mode.
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{ config, lib, pkgs, ... }:
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let
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cfg = import ./common.nix;
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in
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{
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imports = [
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./dnsmasq.nix
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./nft.nix
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./wlan.nix
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];
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boot.kernel.sysctl = {
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"net.ipv4.conf.all.forwarding" = true;
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"net.ipv6.conf.all.forwarding" = true;
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};
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environment.systemPackages = with pkgs; [
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ethtool
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];
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networking.useDHCP = false;
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systemd.network = {
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enable = true;
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# not all interfaces need to be up
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wait-online.extraArgs = [ "--any" ];
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netdevs = {
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br-lan = {
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netdevConfig = {
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Name = "br-lan";
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Kind = "bridge";
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};
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};
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};
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networks = {
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wan = {
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name = "enp1s0";
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DHCP = "ipv4";
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networkConfig = {
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IPv6AcceptRA = "yes";
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};
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dhcpV4Config = {
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UseDNS = "no";
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};
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ipv6AcceptRAConfig = {
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# Only use RA
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DHCPv6Client = false;
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UseDNS = "no";
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};
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};
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lan1 = {
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name = "enp2s0";
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bridge = [ "br-lan" ];
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};
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lan2 = {
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name = "enp3s0";
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bridge = [ "br-lan" ];
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};
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lan3 = {
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name = "enp4s0";
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bridge = [ "br-lan" ];
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};
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br-lan = {
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name = "br-lan";
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domains = [ cfg.domain ];
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address = [ "10.80.1.1/24" "fd00:80:1::1/64" ];
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};
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};
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};
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services.resolved.enable = false;
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}
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