{ config, pkgs, lib, ... }: { imports = [ ./hardware-configuration.nix ../../configuration/common ../../configuration/router ]; boot.kernelParams = [ "console=ttyS0,115200n8" ]; boot.loader.grub.enable = true; boot.loader.grub.version = 2; boot.loader.grub.device = "/dev/sda"; boot.loader.grub.extraConfig = " serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1 terminal_input serial terminal_output serial "; networking.hostName = "carbon"; networking.useDHCP = false; # Local Router IPs networking.interfaces.lo.ipv6.addresses = [ { address = "fd00:152:152:104::1"; prefixLength = 64; } { address = "fd00:152:152::1"; prefixLength = 128; } # Anycast ]; networking.interfaces.lo.ipv4.addresses = [ { address = "10.152.104.1"; prefixLength = 24; } { address = "10.152.0.1"; prefixLength = 32; } # Anycast ]; # Network ## DSL-Uplink networking.vlans."enp1s0.7" = { id = 7; interface = "enp1s0"; }; ## LTE-Uplink networking.vlans."enp1s0.102" = { id = 102; interface = "enp1s0"; }; ## Heimnetz networking.vlans."enp1s0.201" = { id = 201; interface = "enp1s0"; }; networking.interfaces."enp1s0.201".ipv6.addresses = [ { address = "fd00:152:152:4::1"; prefixLength = 64; } { address = "2a01:4f8:1c0c:8221::1"; prefixLength = 64; } # public IPs for local network ]; networking.interfaces."enp1s0.201".ipv4.addresses = [ { address = "10.152.4.1"; prefixLength = 24; } ]; ## Gastnetz networking.vlans."enp1s0.202" = { id = 202; interface = "enp1s0"; }; networking.interfaces."enp1s0.202".ipv6.addresses = [ { address = "fd00:3214:9453:4920::1"; prefixLength = 64; } ]; networking.interfaces."enp1s0.202".ipv4.addresses = [ { address = "192.168.32.1"; prefixLength = 24; } ]; networking.nat = { enableIPv6 = true; enable = true; externalInterface = "ppp-ntvdsl"; internalIPv6s = [ "fd00:152:152::/48" "fd00:3214:9453:4920::/64"]; internalIPs = [ "10.152.0.0/16" "192.168.32.0/24" ]; }; networking.wireguard.enable = true; networking.wireguard.interfaces = { wg-gatekeeper4 = { ips = [ "fe80::127:2/64" "169.254.127.2/24" ]; peers = [ { allowedIPs = [ "0.0.0.0/0" "::/0" ]; endpoint = "78.47.183.82:50127"; publicKey = "y+Bk5eIHgmnq9xuBDD+fk/OIkKRZU6AE4ISx4RdDDyg="; persistentKeepalive = 25; } ]; allowedIPsAsRoutes = false; privateKeyFile = "/var/src/secrets/wireguard/wg-gatekeeper4"; }; wg-porter4 = { ips = [ "fe80::138:2/64" "169.254.138.2/24" ]; peers = [ { allowedIPs = [ "0.0.0.0/0" "::/0" ]; endpoint = "5.45.100.191:50138"; publicKey = "aP6optNE7nVk6coo+USkSDtB62rAc/isfofRML9V2HM="; persistentKeepalive = 25; } ]; allowedIPsAsRoutes = false; privateKeyFile = "/var/src/secrets/wireguard/wg-porter4"; }; wg-heimnetz = { ips = [ "fd00:153:153:201::2/64" ]; peers = [ { allowedIPs = [ "::/0" ]; endpoint = "[fd00:152:152:101::1]:60001"; publicKey = "j/XAIOJGgLieg0jry4AGSkxQySuDdwhJShqC5SCgsWw="; } ]; listenPort = 60001; allowedIPsAsRoutes = false; privateKeyFile = "/var/src/secrets/wireguard/wg-heimnetz"; postSetup = "ip link set wg-heimnetz mtu 1340"; }; }; networking.firewall.allowedUDPPorts = [ 60001 ]; networking.firewall.extraCommands = '' iptables -A FORWARD -i enp1s0.202 -o ppp-ntvdsl -j ACCEPT iptables -A FORWARD -i enp1s0.202 -j DROP iptables -A FORWARD -i ppp-ntvdsl -o enp1s0.202 -j ACCEPT iptables -A FORWARD -o enp1s0.202 -j DROP ''; services.pppd = { enable = true; peers.ntvdsl = { config = '' plugin rp-pppoe.so enp1s0.7 user "dsl-31997-001#regio@bsa-vdsl" ifname ppp-ntvdsl persist maxfail 0 holdoff 5 noipdefault mtu 1492 hide-password defaultroute +ipv6 debug ''; }; }; # ppp session freezes when running long, so we just restart it regularly # (this is an industry standard, looking at you Fritz!Box!) systemd.services."pppd-ntvdsl-restart" = { path = [ "systemctl" ]; script = '' systemctl restart pppd-ntvdsl.service ''; startAt = "*-*-* 03:00:00"; }; # Routing tables # Table: 10000 # - primary routes # Table: 11000 # - ospf routes # Table: 20101 # - default route to gatekeeper # # We will never use main table anymore petabyte.policyrouting = { enable = true; rules6 = [ # main routes first except default route { rule = "lookup main suppress_prefixlength 0"; prio = 10000; } # Prefixes defaulting to gatekeeper { rule = "from 2a01:4f8:1c0c:8221::/64 lookup 20101"; prio = 20000; } { rule = "from 2a01:4f8:1c0c:8221::/64 unreachable"; prio = 20001; } # Everything else defaulting to main table after this ]; rules4 = [ # main routes first except default route { rule = "lookup main suppress_prefixlength 0"; prio = 10000; } # Prefixes defaulting to gatekeeper #{ rule = "from xxx lookup 20101"; prio = 20000; } # Everything else defaulting to main table after this ]; }; services.bird2.enable = true; services.bird2.config = '' router id ${ (lib.head config.networking.interfaces.lo.ipv4.addresses).address }; ipv6 table gatekeeper6; ipv4 table gatekeeper4; protocol static static_gatekeeper_6 { ipv6 { table gatekeeper6; }; route ::/0 via fd00:153:153:201::1; } protocol static static_gatekeeper_4 { ipv4 { table gatekeeper4; }; route 0.0.0.0/0 via 10.153.201.1; } protocol kernel kernel_gatekeeper_6 { ipv6 { table gatekeeper6; export filter { krt_prefsrc=${ (lib.head config.networking.interfaces.lo.ipv6.addresses).address }; accept; }; import none; }; kernel table 20101; } protocol kernel kernel_gatekeeper_4 { ipv4 { table gatekeeper4; export filter { krt_prefsrc=${ (lib.head config.networking.interfaces.lo.ipv4.addresses).address }; accept; }; import none; }; kernel table 20101; } ipv6 table ospf6; ipv4 table ospf4; protocol direct direct_lo { interface "lo"; ipv6 { table ospf6; }; ipv4 { table ospf4; }; } protocol direct direct_enp1s0_201 { interface "enp1s0.201"; ipv6 { table ospf6; }; ipv4 { table ospf4; }; } protocol kernel kernel_ospf6 { ipv6 { table ospf6; export filter { krt_prefsrc=${ (lib.head config.networking.interfaces.lo.ipv6.addresses).address }; accept; }; import none; }; } protocol kernel kernel_ospf4 { ipv4 { table ospf4; export filter { krt_prefsrc=${ (lib.head config.networking.interfaces.lo.ipv4.addresses).address }; accept; }; import none; }; } protocol ospf v3 ospf_6 { ipv6 { table ospf6; import all; export all; }; area 0 { interface "wg-gatekeeper4" { cost 80; type pointopoint; }; interface "wg-porter4" { cost 80; type pointopoint; }; }; } protocol ospf v3 ospf_4 { ipv4 { table ospf4; import all; export all; }; area 0 { interface "wg-gatekeeper4" { cost 80; type pointopoint; }; interface "wg-porter4" { cost 80; type pointopoint; }; }; } protocol device { scan time 10; } ''; clerie.monitoring = { enable = true; id = "104"; pubkey = "sro9DUSMtVr5xV2o3GTgg+0vmLj+bRc8fN+3pIr6+HY="; }; system.stateVersion = "21.03"; }