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-rw-r--r--docs/configuration/service/dhcp-server.rst52
1 files changed, 42 insertions, 10 deletions
diff --git a/docs/configuration/service/dhcp-server.rst b/docs/configuration/service/dhcp-server.rst
index 50e9ee7e..eaa6a9f2 100644
--- a/docs/configuration/service/dhcp-server.rst
+++ b/docs/configuration/service/dhcp-server.rst
@@ -627,15 +627,44 @@ used:
.. cfgcmd:: set service dhcpv6-server shared-network-name <name> subnet
- <prefix> prefix-delegation start <address> prefix-length <length>
+ <prefix> prefix-delegation prefix <pd-prefix> prefix-length <lenght>
- Hand out prefixes of size `<length>` to clients in subnet `<prefix>` when
- they request for prefix delegation.
+ Delegate prefixes from `<pd-prefix>` to clients in subnet `<prefix>`. Range
+ is defined by `<lenght>` in bits, 32 to 64.
.. cfgcmd:: set service dhcpv6-server shared-network-name <name> subnet
- <prefix> prefix-delegation start <address> stop <address>
+ <prefix> prefix-delegation prefix <pd-prefix> delegated-length <lenght>
+
+ Hand out prefixes of size `<length>` in bits from `<pd-prefix>` to clients
+ in subnet `<prefix>` when the request for prefix delegation.
+
+.. cfgcmd:: set service dhcpv6-server shared-network-name <name> subnet
+ <prefix> prefix-delegation prefix <pd-prefix> excluded-prefix <exclude-prefix>
+
+ Exclude `<exclude-prefix>` from `<pd-prefix>`.
+
+
+.. cfgcmd:: set service dhcpv6-server shared-network-name <name> subnet
+ <prefix> prefix-delegation prefix <pd-prefix> excluded-prefix-length <length>
+
+ Define lenght of exclude prefix in `<pd-prefix>`.
+
+**Example:**
+
+* A shared network named ``PD-NET`` serves subnet ``2001:db8::/64``.
+* It is connected to ``eth1``.
+* Address pool shall be ``2001:db8::100`` through ``2001:db8::199``.
+* It hands out prefixes ``2001:db8:0:10::/64`` through ``2001:db8:0:1f::/64``.
+
+.. code-block:: none
+
+ set service dhcpv6-server shared-network-name 'PD-NET' interface 'eth1'
+ set service dhcpv6-server shared-network-name 'PD-NET' subnet 2001:db8::/64 range 1 start 2001:db8::100
+ set service dhcpv6-server shared-network-name 'PD-NET' subnet 2001:db8::/64 range 1 stop 2001:db8::199
+ set service dhcpv6-server shared-network-name 'PD-NET' subnet 2001:db8::/64 prefix-delegation prefix 2001:db8:0:10:: delegated-length '64'
+ set service dhcpv6-server shared-network-name 'PD-NET' subnet 2001:db8::/64 prefix-delegation prefix 2001:db8:0:10:: prefix-length '60'
+
- Delegate prefixes from the range indicated by the start and stop qualifier.
Address pools
-------------
@@ -653,7 +682,8 @@ server. The following example describes a common scenario.
.. code-block:: none
- set service dhcpv6-server shared-network-name 'NET1' subnet 2001:db8::/64 range 1 start 2001:db8::100 stop 2001:db8::199
+ set service dhcpv6-server shared-network-name 'NET' interface 'eth1'
+ set service dhcpv6-server shared-network-name 'NET1' subnet 2001:db8::/64 range 1 start 2001:db8::100
set service dhcpv6-server shared-network-name 'NET1' subnet 2001:db8::/64 range 1 stop 2001:db8::199
set service dhcpv6-server shared-network-name 'NET1' subnet 2001:db8::/64 option name-server 2001:db8::ffff
set service dhcpv6-server shared-network-name 'NET1' subnet 2001:db8::/64 subnet-id 1
@@ -747,10 +777,12 @@ Operation Mode
.. code-block:: none
vyos@vyos:~$ show dhcpv6 server leases
- IPv6 address State Last communication Lease expiration Remaining Type Pool IAID_DUID
- ------------- ------- -------------------- ------------------- ----------- ------------- ----- --------------------------------------------
- 2001:db8::101 active 2019/12/05 19:40:10 2019/12/06 07:40:10 11:45:21 non-temporary NET1 98:76:54:32:00:01:00:01:12:34:56:78:aa:bb:cc:dd:ee:ff
- 2001:db8::102 active 2019/12/05 14:01:23 2019/12/06 02:01:23 6:06:34 non-temporary NET1 87:65:43:21:00:01:00:01:11:22:33:44:fa:fb:fc:fd:fe:ff
+ IPv6 address State Last communication Lease expiration Remaining Type Pool DUID
+ ---------------- ------- -------------------- ------------------- ----------- ----- -------- --------------------------------------------
+ 2001:db8::101 active 2019/12/05 19:40:10 2019/12/06 07:40:10 11:45:21 IA_NA NET1 98:76:54:32:00:01:00:01:12:34:56:78:aa:bb:cc:dd:ee:ff
+ 2001:db8::102 active 2019/12/05 14:01:23 2019/12/06 02:01:23 6:06:34 IA_NA NET1 87:65:43:21:00:01:00:01:11:22:33:44:fa:fb:fc:fd:fe:ff
+ 2001:db8:10::/64 active 2019/12/05 23:20:10 2019/12/06 11:40:10 11:45:21 IA_PD PD-NET1 98:76:54:32:00:01:00:01:12:34:56:78:aa:bb:cc:dd:ee:ff
+
.. hint:: Static mappings aren't shown. To show all states, use ``show dhcp
server leases state all``.