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authorChristian Poessinger <christian@poessinger.com>2019-12-20 22:03:49 +0100
committerChristian Poessinger <christian@poessinger.com>2019-12-20 22:03:56 +0100
commitb57aefa306a42241ea1eceae55ea322e2e5fe2a9 (patch)
tree2d3b26b5096518ee0bb0ebdacaa229a55be61c00 /docs
parent695a88c7e40719e4befe2b3a5559822fe3043b8d (diff)
downloadvyos-documentation-b57aefa306a42241ea1eceae55ea322e2e5fe2a9.tar.gz
vyos-documentation-b57aefa306a42241ea1eceae55ea322e2e5fe2a9.zip
routing: static: rewrite with new cfgcmd syntax
Diffstat (limited to 'docs')
-rw-r--r--docs/routing/static.rst131
-rw-r--r--docs/system/default-route.rst2
2 files changed, 117 insertions, 16 deletions
diff --git a/docs/routing/static.rst b/docs/routing/static.rst
index dc0e1ab4..cebe42fa 100644
--- a/docs/routing/static.rst
+++ b/docs/routing/static.rst
@@ -1,29 +1,130 @@
-.. _routing-static:
+.. _static-routing:
+
+######
+Static
+######
+
+Static routes are manually configured routes, which, in general, cannot be
+updated dynamically from information VyOS learns about the network topology from
+other routing protocols. However, if a link fails, the router will remove
+routes, including static routes, from the :abbr:`RIPB (Routing Information
+Base)` that used this interface to reach the next hop. In general, static
+routes should only be used for very simple network topologies, or to override
+the behavior of a dynamic routing protocol for a small number of routes. The
+collection of all routes the router has learned from its configuration or from
+its dynamic routing protocols is stored in the RIB. Unicast routes are directly
+used to determine the forwarding table used for unicast packet forwarding.
-#############
Static Routes
#############
-Static routes are manually configured network routes.
+.. cfgcmd:: set protocols static route '<subnet>' next-hop '<address>'
+
+ Configure next-hop `<address>` for an IPv4 static route. Multiple static
+ routes can be created.
+
+.. cfgcmd:: set protocols static route '<subnet>' next-hop '<address>' disable
-A typical use for a static route is a static default route for systems that do
-not make use of DHCP or dynamic routing protocols:
+ Disable this IPv4 static route entry.
-.. code-block:: none
+.. cfgcmd:: set protocols static route '<subnet>' next-hop '<address>' distance '<distance>'
- set protocols static route 0.0.0.0/0 next-hop 10.1.1.1 distance '1'
+ Defines next-hop distance for this route, routes with smaller administrative
+ distance are elected prior those with a higher distance.
-Another common use of static routes is to blackhole (drop) traffic. In the
-example below, :rfc:`1918` networks are set as blackhole routes.
+ Range is 1 to 255, default is 1.
-This prevents these networks leaking out public interfaces, but it does not prevent
-them from being used as the most specific route has the highest priority.
+.. cfgcmd:: set protocols static route6 '<subnet>' next-hop '<address>'
-.. code-block:: none
+ Configure next-hop `<address>` for an IPv6 static route. Multiple static
+ routes can be created.
- set protocols static route 10.0.0.0/8 blackhole distance '254'
- set protocols static route 172.16.0.0/12 blackhole distance '254'
- set protocols static route 192.168.0.0/16 blackhole distance '254'
+.. cfgcmd:: set protocols static route6 '<subnet>' next-hop '<address>' disable
+
+ Disable this IPv6 static route entry.
+
+.. cfgcmd:: set protocols static route6 '<subnet>' next-hop '<address>' distance '<distance>'
+
+ Defines next-hop distance for this route, routes with smaller administrative
+ distance are elected prior those with a higher distance.
+
+ Range is 1 to 255, default is 1.
.. note:: Routes with a distance of 255 are effectively disabled and not
installed into the kernel.
+
+
+Interface Routes
+================
+
+.. cfgcmd:: set protocols static interface-route '<subnet>' next-hop-interface '<interface>'
+
+ Allows you to configure the next-hop interface for an interface-based IPv4
+ static route. `<interface>` will be the next-hop interface where trafic is
+ routed for the given `<subnet>`.
+
+.. cfgcmd:: set protocols static interface-route '<subnet>' next-hop-interface '<interface>' disable
+
+ Disables interface-based IPv4 static route.
+
+.. cfgcmd:: set protocols static interface-route '<subnet>' next-hop-interface '<interface>' distance '<distance>'
+
+ Defines next-hop distance for this route, routes with smaller administrative
+ distance are elected prior those with a higher distance.
+
+ Range is 1 to 255, default is 1.
+
+.. cfgcmd:: set protocols static interface-route6 '<subnet>' next-hop-interface '<interface>'
+
+ Allows you to configure the next-hop interface for an interface-based IPv6
+ static route. `<interface>` will be the next-hop interface where trafic is
+ routed for the given `<subnet>`.
+
+.. cfgcmd:: set protocols static interface-route6 '<subnet>' next-hop-interface '<interface>' disable
+
+ Disables interface-based IPv6 static route.
+
+.. cfgcmd:: set protocols static interface-route6 '<subnet>' next-hop-interface '<interface>' distance '<distance>'
+
+ Defines next-hop distance for this route, routes with smaller administrative
+ distance are elected prior those with a higher distance.
+
+ Range is 1 to 255, default is 1.
+
+
+Blackhole
+=========
+
+.. cfgcmd:: set protocols static route '<subnet>' blackhole
+
+ Use this command to configure a "black-hole" route on the router. A
+ black-hole route is a route for which the system silently discard packets
+ that are matched. This prevents networks leaking out public interfaces, but
+ it does not prevent them from being used as a more specific route inside your
+ network.
+
+.. cfgcmd:: set protocols static route '<subnet>' blackhole distance '<distance>'
+
+ Defines blackhole distance for this route, routes with smaller administrative
+ distance are elected prior those with a higher distance.
+
+.. cfgcmd:: set protocols static route6 '<subnet>' blackhole
+
+ Use this command to configure a "black-hole" route on the router. A
+ black-hole route is a route for which the system silently discard packets
+ that are matched. This prevents networks leaking out public interfaces, but
+ it does not prevent them from being used as a more specific route inside your
+ network.
+
+.. cfgcmd:: set protocols static route6 '<subnet>' blackhole distance '<distance>'
+
+ Defines blackhole distance for this route, routes with smaller administrative
+ distance are elected prior those with a higher distance.
+
+
+Alternate Routing Tables
+========================
+
+Alternate routing tables are used with policy based routing.
+
+TBD
diff --git a/docs/system/default-route.rst b/docs/system/default-route.rst
index 567a41c8..a46790e4 100644
--- a/docs/system/default-route.rst
+++ b/docs/system/default-route.rst
@@ -36,5 +36,5 @@ Operation
Last update 09:46:30 ago
* 172.18.201.254, via eth0.201
-.. seealso:: Configuration of :ref:`routing-static`
+.. seealso:: Configuration of :ref:`static-routing`