ansible/config/common.yaml

@@ -15,27 +15,33 @@ ospf:
       - "2a02:898:424::/48+"        # ColoClue space
 
 routers:
-  "rtr1.nlams1":
+  "rtr1nlams1":
     fqdn: rtr1.nlams1.as205079.net
     ipv4: 94.142.240.55
     ipv6: 2001:678:10ec:2201::1
+    gre_mtu: 1476
+    gre_ll: "fe80::2050:79:2"
     site_name: "NLAMS1"
     site_id: 2
     graceful_shutdown: false
     maintenance_mode: false
-  "rtr1.nlape1":
+  "rtr1nlape1":
     fqdn: rtr1.nlape1.as205079.net
     ipv4: 194.28.98.155
     ipv6: 2001:678:10ec:3201::1
+    gre_mtu: 1476
+    gre_ll: "fe80::2050:79:3"
     site_name: "NLAPE1"
     site_id: 3
     graceful_shutdown: false
     maintenance_mode: false
-  "rtr1.nlwie1":
+  "rtr1nlwie1":
     fqdn: rtr1.nlwie1.as205079.net
     pub_ipv4: 86.94.191.237
     ipv4: 10.20.10.23 # router is behind NAT
     ipv6: 2001:678:10ec:1201::1
+    gre_mtu: 1468
+    gre_ll: "fe80::2050:79:1"
     site_name: "NLWIE1"
     site_id: 1
     graceful_shutdown: false

ansible/config/rtr1.nlams1.as205079.net.yaml

@@ -1,6 +1,4 @@
-location:
-  code: "NLAMS1"
-  site_id: "2"
+shortname: rtr1nlams1
 
 ipv6:
   primary: "2001:0678:10ec:2201::1"
@@ -18,29 +16,27 @@ routes:
     - "2001:678:10ec::/48" # My space
     - "2a02:898:424::/48" # ColoClue space
 
-# dummy_interfaces: {}
-
-gre:
-  tunnels:
-    - name: "INT-RTR1NLAPE1"
-      remote_endpoint: 194.28.98.155
-      local_endpoint: 94.142.240.55
-      local_ipv6: 2001:678:10ec:20e::1/64
-      ttl: 255
-      mtu: 1476
-    - name: "INT-RTR1NLWIE1"
-      remote_endpoint: 86.94.191.237
-      local_endpoint: 94.142.240.55
-      local_ipv6: 2001:678:10ec:20d::1/64
-      ttl: 255
-      mtu: 1468
+# gre:
+#   tunnels:
+#     - name: "INT-RTR1NLAPE1"
+#       remote_endpoint: 194.28.98.155
+#       local_endpoint: 94.142.240.55
+#       local_ipv6: 2001:678:10ec:20e::1/64
+#       ttl: 255
+#       mtu: 1476
+#     - name: "INT-RTR1NLWIE1"
+#       remote_endpoint: 86.94.191.237
+#       local_endpoint: 94.142.240.55
+#       local_ipv6: 2001:678:10ec:20d::1/64
+#       ttl: 255
+#       mtu: 1468
 
 interfaces:
   - nic: "loop0"
     description: "Loopback interface"
     stub: true
-  - nic: "INT-RTR1NLAPE1"
-  - nic: "INT-RTR1NLWIE1"
+  - nic: "int-rtr1nlape1"
+  - nic: "int-rtr1nlwie1"
   - nic: "vmbr1"
     description: "NLAMS1 Servers"
     stub: true
@@ -72,8 +68,6 @@ peers:
     import: "RIPE::AS212855:AS-LUJE"
     export: "RIPE::AS205079:AS-MANS"
     peer_ipv6: "2a02:898:0:20::427:1"
-
-
 internal_peers:
   - name: "RTR1APE1"
     ip: "2001:678:10ec:3201::1"

ansible/config/rtr1.nlape1.as205079.net.yaml

@@ -1,6 +1,4 @@
-location:
-  code: "NLAPE1"
-  site_id: "3"
+shortname: rtr1nlape1
 
 ipv6:
   primary: "2001:0678:10ec:3201::1"
@@ -15,18 +13,18 @@ routes:
 
 gre:
   tunnels:
-    - name: "INT-RTR1NLWIE1"
-      remote_endpoint: 86.94.191.237
-      local_endpoint: 194.28.98.155
-      local_ipv6: 2001:678:10ec:20f:0:0:0:1/112
-      ttl: 255
-      mtu: 1468
-    - name: "INT-RTR1NLAMS1"
-      remote_endpoint: 94.142.240.55
-      local_endpoint: 194.28.98.155
-      local_ipv6: 2001:678:10ec:20e::2/64
-      ttl: 255
-      mtu: 1476
+    # - name: "INT-RTR1NLWIE1"
+    #   remote_endpoint: 86.94.191.237
+    #   local_endpoint: 194.28.98.155
+    #   local_ipv6: 2001:678:10ec:20f:0:0:0:1/112
+    #   ttl: 255
+    #   mtu: 1468
+    # - name: "INT-RTR1NLAMS1"
+    #   remote_endpoint: 94.142.240.55
+    #   local_endpoint: 194.28.98.155
+    #   local_ipv6: 2001:678:10ec:20e::2/64
+    #   ttl: 255
+    #   mtu: 1476
     - name: "ROUTE64-AMS1"
       remote_endpoint: 118.91.187.67
       local_endpoint: 194.28.98.155
@@ -92,8 +90,8 @@ interfaces:
   - nic: "ens19"
     description: "To Loc-IX"
     stub: true
-  - nic: "INT-RTR1NLWIE1"
-  - nic: "INT-RTR1NLAMS1"
+  - nic: "int-rtr1nlwie1"
+  - nic: "int-rtr1nlams1"
 
 rpki:
   run_routinator: true

ansible/config/rtr1.nlwie1.as205079.net.yaml

@@ -1,6 +1,4 @@
-location:
-  code: "NLWIE1"
-  site_id: "1"
+shortname: rtr1nlwie1
 
 ipv6:
   primary: "2001:0678:10ec:1201::1"
@@ -13,20 +11,20 @@ routes:
   6:
     - "2001:678:10ec::/48"
 
-gre:
-  tunnels: 
-    - name: "INT-RTR1NLAPE1"
-      remote_endpoint: 194.28.98.155
-      local_endpoint: 10.20.10.23
-      local_ipv6: 2001:678:10ec:20f:0:0:0:2/112
-      ttl: 255
-      mtu: 1468
-    - name: "INT-RTR1NLAMS1"
-      remote_endpoint: 94.142.240.55
-      local_endpoint: 10.20.10.23
-      local_ipv6: 2001:678:10ec:20d::2/64
-      ttl: 255
-      mtu: 1468
+# gre:
+#   tunnels: 
+#     - name: "INT-RTR1NLAPE1"
+#       remote_endpoint: 194.28.98.155
+#       local_endpoint: 10.20.10.23
+#       local_ipv6: 2001:678:10ec:20f:0:0:0:2/112
+#       ttl: 255
+#       mtu: 1468
+#     - name: "INT-RTR1NLAMS1"
+#       remote_endpoint: 94.142.240.55
+#       local_endpoint: 10.20.10.23
+#       local_ipv6: 2001:678:10ec:20d::2/64
+#       ttl: 255
+#       mtu: 1468
 
 interfaces:
   - nic: "loop0"
@@ -37,8 +35,8 @@ interfaces:
   - nic: "eth1"
     description: "nlwie1 servers"
     stub: true
-  - nic: "INT-RTR1NLAPE1"
-  - nic: "INT-RTR1NLAMS1"
+  - nic: "int-rtr1nlape1"
+  - nic: "int-rtr1nlams1"
   - nic: "wg0"
     description: "wireguard remote"
     stub: true

ansible/playbook.yaml

@@ -7,7 +7,7 @@
   roles:
     # - base
     # - sysctl
-    - dummy-interfaces
+    # - dummy-interfaces
     - gre
     # - routinator
     - bird2

ansible/roles/gre/handlers/main.yaml

@@ -3,8 +3,3 @@
     cmd: "ifreload -a"
   register: ifreload_result
   changed_when: ifreload_result.stdout != "" and "Reloading" in ifreload_result.stdout
-
-- name: "Restart networking"
-  ansible.builtin.systemd:
-    name: networking
-    state: restarted

ansible/roles/gre/tasks/main.yaml

@@ -1,4 +1,12 @@
-- name: "Ensure gre interfaces are present"
+- name: "Ensure internal gre interfaces are present"
+  ansible.builtin.template:
+    src: internal_gre_interfaces.j2
+    dest: /etc/network/interfaces.d/internal_gre_interfaces
+    mode: "0644"
+  notify:
+    - "Reload networking"
+
+- name: "Ensure extra gre interfaces are present"
   ansible.builtin.template:
     src: gre_interface.j2
     dest: /etc/network/interfaces.d/{{ item.name }}

ansible/roles/gre/templates/internal_gre_interfaces.j2

@@ -0,0 +1,11 @@
+{%- for router in routers if not router == shortname %}
+auto int-{{ router }}
+iface int-{{ router }} inet6 static
+    pre-up ip tunnel add int-{{ router }} mode gre remote {{ routers[router]['pub_ipv4'] | default(routers[router]['ipv4']) }} local {{ routers[shortname]['ipv4'] }} ttl 255
+    pre-up ip addr add {{ routers[shortname]['gre_ll'] }}/64 dev int-{{ router }}
+    up ip link set dev int-{{ router }} up
+    # up ip link set int-{{ router }} mtu {{ routers[router]['gre_mtu'] }}
+    up ip link set dev int-{{ router }} mtu 1468
+    post-down ip tunnel del int-{{ router }}
+
+{% endfor %}