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OSPF: update description and added WireGuard example

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Christian Poessinger 2019-07-09 18:31:17 +02:00
parent 06ca36a89f
commit 1cee9fe391
1 changed files with 67 additions and 6 deletions
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73
docs/routing/ospf.rst
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@ -3,13 +3,22 @@
Open Shortest Path First (OSPF) Open Shortest Path First (OSPF)
------------------------------- -------------------------------
IPv4 Open Shortest Path First (OSPF) is a routing protocol for Internet Protocol
^^^^ (IP) networks. It uses a link state routing (LSR) algorithm and falls into the
group of interior gateway protocols (IGPs), operating within a single autonomous
system (AS). It is defined as OSPF Version 2 in RFC2328_ (1998) for IPv4. Updates
for IPv6 are specified as OSPF Version 3 in RFC5340_ (2008). OSPF supports the
Classless Inter-Domain Routing (CIDR) addressing model.
OSPF is a widely used IGP in large enterprise networks.
OSPFv2 (IPv4)
^^^^^^^^^^^^^
A typical configuration using 2 nodes, redistribute loopback address and the A typical configuration using 2 nodes, redistribute loopback address and the
node 1 sending the default route: node 1 sending the default route:
**Node 1:** **Node 1**
.. code-block:: sh .. code-block:: sh
@ -26,7 +35,7 @@ node 1 sending the default route:
set policy route-map CONNECT rule 10 action permit set policy route-map CONNECT rule 10 action permit
set policy route-map CONNECT rule 10 match interface lo set policy route-map CONNECT rule 10 match interface lo
**Node 2:** **Node 2**
.. code-block:: sh .. code-block:: sh
@ -40,8 +49,8 @@ node 1 sending the default route:
set policy route-map CONNECT rule 10 action permit set policy route-map CONNECT rule 10 action permit
set policy route-map CONNECT rule 10 match interface lo set policy route-map CONNECT rule 10 match interface lo
IPv6 OSPFv3 (IPv6)
^^^^ ^^^^^^^^^^^^^
A typical configuration using 2 nodes. A typical configuration using 2 nodes.
@ -63,3 +72,55 @@ A typical configuration using 2 nodes.
set protocols ospfv3 parameters router-id 192.168.2.1 set protocols ospfv3 parameters router-id 192.168.2.1
set protocols ospfv3 redistribute connected set protocols ospfv3 redistribute connected
.. note:: You can not easily redistribute IPv6 routes via OSPFv3 on a WireGuard
interface link. This requires you to configure link-local addresses manually
on the WireGuard interfaces, see Phabricator task T1483_.
Example configuration for WireGuard interfaces:
**Node 1**
.. code-block:: sh
set interfaces wireguard wg01 address 'fe80::216:3eff:fe51:fd8c/64'
set interfaces wireguard wg01 address '192.168.0.1/24'
set interfaces wireguard wg01 peer ospf02 allowed-ips '::/0'
set interfaces wireguard wg01 peer ospf02 allowed-ips '0.0.0.0/0'
set interfaces wireguard wg01 peer ospf02 endpoint '10.1.1.101:12345'
set interfaces wireguard wg01 peer ospf02 pubkey 'ie3...='
set interfaces wireguard wg01 port '12345'
set protocols ospfv3 parameters router-id 192.168.1.1
set protocols ospfv3 area 0.0.0.0 interface 'wg01'
set protocols ospfv3 area 0.0.0.0 interface 'lo'
**Node 2**
.. code-block:: sh
set interfaces wireguard wg01 address 'fe80::216:3eff:fe0a:7ada/64'
set interfaces wireguard wg01 address '192.168.0.2/24'
set interfaces wireguard wg01 peer ospf01 allowed-ips '::/0'
set interfaces wireguard wg01 peer ospf01 allowed-ips '0.0.0.0/0'
set interfaces wireguard wg01 peer ospf01 endpoint '10.1.1.100:12345'
set interfaces wireguard wg01 peer ospf01 pubkey 'NHI...='
set interfaces wireguard wg01 port '12345'
set protocols ospfv3 parameters router-id 192.168.1.2
set protocols ospfv3 area 0.0.0.0 interface 'wg01'
set protocols ospfv3 area 0.0.0.0 interface 'lo'
**Status**
.. code-block:: sh
vyos@ospf01:~$ sh ipv6 ospfv3 neighbor
Neighbor ID Pri DeadTime State/IfState Duration I/F[State]
192.168.0.2 1 00:00:37 Full/PointToPoint 00:18:03 wg01[PointToPoint]
vyos@ospf02# run sh ipv6 ospfv3 neighbor
Neighbor ID Pri DeadTime State/IfState Duration I/F[State]
192.168.0.1 1 00:00:39 Full/PointToPoint 00:19:44 wg01[PointToPoint]
.. _RFC2328: https://tools.ietf.org/html/rfc2328
.. _RFC5340: https://tools.ietf.org/html/rfc2340
.. _T1483: https://phabricator.vyos.net/T1483