hosts/astatine: Isolate ppp interface

hosts/astatine/configuration.nix

@@ -5,6 +5,8 @@
     [
       ./hardware-configuration.nix
 
+      ./ppp.nix
+      ./programs.nix
       ./users.nix
     ];
 
@@ -26,7 +28,7 @@
 
   networking.hostName = "astatine";
 
-  networking.firewall.enable = false;
+  #networking.firewall.enable = false;
 
   services.wg-clerie = {
     enable = true;

hosts/astatine/ppp.nix

@@ -0,0 +1,90 @@
+{ pkgs, ... }:
+
+{
+  # Make space for VLAN header in containing ethernet segment
+  networking.interfaces."enp1s0".mtu = 1518;
+
+  ## DSL-Uplink
+  networking.vlans."enp1s0.7" = {
+    id = 7;
+    interface = "enp1s0";
+  };
+
+  services.pppd = {
+    enable = true;
+    peers.lns-test = {
+      config = ''
+        plugin pppoe.so enp1s0.7
+        user "criese#regiotest@bsa-vdsl"
+        ifname ppp-lns-test
+        persist
+        maxfail 0
+        holdoff 5
+        noipdefault
+        lcp-echo-interval 20
+        lcp-echo-failure 3
+        hide-password
+        nodefaultroute
+        +ipv6
+        debug
+      '';
+    };
+  };
+
+  /*
+  networking.interfaces.lo.useDHCP = true;
+  networking.interfaces.ppp-lns-test.useDHCP = true;
+
+  networking.dhcpcd = {
+    enable = true;
+    extraConfig = ''
+      interface ppp-lns-test
+        ipv6rs
+        ia_pd 0 lo/0
+    '';
+  };*/
+
+  environment.etc."ppp/ip-up" = {
+    text = ''
+      #! ${pkgs.runtimeShell} -e
+
+      ${pkgs.iproute2}/bin/ip route flush table 20001 || true
+      ${pkgs.iproute2}/bin/ip route add default dev ppp-lns-test table 20001
+    '';
+    mode = "555";
+  };
+  environment.etc."ppp/ip-down" = {
+    text = ''
+      #! ${pkgs.runtimeShell} -e
+
+      ${pkgs.iproute2}/bin/ip route flush table 20001 || true
+    '';
+    mode = "555";
+  };
+  environment.etc."ppp/ipv6-up" = {
+    text = ''
+      #! ${pkgs.runtimeShell} -e
+
+      ${pkgs.iproute2}/bin/ip -6 route flush table 20001 || true
+      ${pkgs.iproute2}/bin/ip -6 route add default dev ppp-lns-test table 20001
+    '';
+    mode = "555";
+  };
+  environment.etc."ppp/ipv6-down" = {
+    text = ''
+      #! ${pkgs.runtimeShell} -e
+
+      ${pkgs.iproute2}/bin/ip -6 route flush table 20001 || true
+    '';
+    mode = "555";
+  };
+
+  petabyte.policyrouting = {
+    enable = true;
+    rules4 = [
+      { rule = "from 212.218.16.237/32 lookup 20001"; prio = 19000; }
+      { rule = "from 212.218.16.237/32  unreachable"; prio = 19001; }
+    ];
+  };
+
+}

hosts/astatine/programs.nix

@@ -0,0 +1,9 @@
+{ pkgs, ... }:
+
+{
+
+  environment.systemPackages = with pkgs; [
+    tcpdump # for remote wireshark
+  ];
+
+}