mirror of
https://github.com/ivabus/nixos
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70 lines
1.9 KiB
Nix
70 lines
1.9 KiB
Nix
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{ config, lib, pkgs, ... }:
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let cfg = config.my.roles.router;
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in {
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options.my.roles.router.enable =
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lib.mkEnableOption "Enable router capabilities";
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options.my.roles.router.interfaces.wan = lib.mkOption {
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type = lib.types.str;
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default = "wan0";
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description = ''
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WAN interface name.
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'';
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};
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options.my.roles.router.interfaces.lan = lib.mkOption {
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type = lib.types.str;
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default = "lan0";
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description = ''
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LAN interface name.
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'';
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};
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config = lib.mkIf (cfg.enable) {
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boot.kernel.sysctl = lib.mkForce {
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"net.ipv4.conf.all.forwarding" = true;
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"net.ipv6.conf.all.forwarding" = true;
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"net.ipv6.conf.all.accept_ra" = 0;
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"net.ipv6.conf.all.autoconf" = 0;
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"net.ipv6.conf.all.use_tempaddr" = 0;
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# On WAN, allow IPv6 autoconfiguration and tempory address use.
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"net.ipv6.conf.${cfg.interfaces.wan}.accept_ra" = 2;
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"net.ipv6.conf.${cfg.interfaces.wan}.autoconf" = 1;
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};
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services = {
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avahi = {
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enable = true;
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allowInterfaces = [ "${cfg.interfaces.lan}" ];
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ipv4 = true;
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ipv6 = true;
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reflector = true;
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};
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dhcpd4 = {
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enable = true;
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interfaces = [ "${cfg.interfaces.lan}" ];
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extraConfig = ''
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option domain-name-servers 1.1.1.1, 8.8.8.8;
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option subnet-mask 255.255.255.0;
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subnet 192.168.1.0 netmask 255.255.255.0 {
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option broadcast-address 192.168.1.255;
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option routers 192.168.1.1;
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interface ${cfg.interfaces.lan};
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range 192.168.1.64 192.168.1.254;
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}
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'';
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};
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};
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networking = {
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nat = {
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enable = true;
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externalInterface = "${cfg.interfaces.wan}";
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internalInterfaces = [ "${cfg.interfaces.lan}" ];
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internalIPs = [ "192.168.0.0/24" "192.168.1.0" /24 ];
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};
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};
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};
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}
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