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authorNicolas Fort <nicolasfort1988@gmail.com>2023-02-06 12:08:32 -0300
committerNicolas Fort <nicolasfort1988@gmail.com>2023-02-06 12:08:32 -0300
commit86422eef63496e7bf659bbccf81014bc424961e9 (patch)
tree5085c74c0157e81a979d9e3f693dfdbc321c994b
parentd39ce49e2f54b99433c5c661fc1cb6efbbe6c930 (diff)
downloadvyos-documentation-86422eef63496e7bf659bbccf81014bc424961e9.tar.gz
vyos-documentation-86422eef63496e7bf659bbccf81014bc424961e9.zip
T2408: dhcp relay interface: add docs for new listen-interface and upstream-interface commands
-rw-r--r--docs/configuration/service/dhcp-relay.rst33
1 files changed, 29 insertions, 4 deletions
diff --git a/docs/configuration/service/dhcp-relay.rst b/docs/configuration/service/dhcp-relay.rst
index a93c1046..43abf254 100644
--- a/docs/configuration/service/dhcp-relay.rst
+++ b/docs/configuration/service/dhcp-relay.rst
@@ -20,8 +20,20 @@ Configuration
.. cfgcmd:: set service dhcp-relay interface <interface>
- Interfaces that participate in the DHCP relay process, including the uplink
- to the DHCP server.
+ Interfaces that participate in the DHCP relay process. If this command is
+ used, at least two entries of it are required: one for the interface that
+ captures the dhcp-requests, and one for the interface to forward such
+ requests. A warning message will be shown if this command is used, since
+ new implementations should use ``listen-interface`` and
+ ``upstream-interface``.
+
+.. cfgcmd:: set service dhcp-relay listen-interface <interface>
+
+ Interface for DHCP Relay Agent to listen for requests.
+
+.. cfgcmd:: set service dhcp-relay upstream-interface <interface>
+
+ Interface for DHCP Relay Agent to forward requests out.
.. cfgcmd:: set service dhcp-relay server <server>
@@ -70,8 +82,8 @@ Example
* Listen for DHCP requests on interface ``eth1``.
* DHCP server is located at IPv4 address 10.0.1.4 on ``eth2``.
-* Router receives DHCP client requests on ``eth1`` and relays them to the server
- at 10.0.1.4 on ``eth2``.
+* Router receives DHCP client requests on ``eth1`` and relays them to the
+ server at 10.0.1.4 on ``eth2``.
.. figure:: /_static/images/service_dhcp-relay01.png
:scale: 80 %
@@ -84,6 +96,19 @@ The generated configuration will look like:
.. code-block:: none
show service dhcp-relay
+ listen-interface eth1
+ upstrem-interface eth2
+ server 10.0.1.4
+ relay-options {
+ relay-agents-packets discard
+ }
+
+Also, for backwards compatibility this configuration, which uses generic
+interface definition, is still valid:
+
+.. code-block:: none
+
+ show service dhcp-relay
interface eth1
interface eth2
server 10.0.1.4