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Add directed broadcast forwarding documentation

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This commit is contained in:
Yuxiang Zhu 2022-07-12 22:55:43 +08:00
parent 8d43ee1dbf
commit 2fadd2febf
2 changed files with 27 additions and 2 deletions
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18
docs/_include/interface-ip.txt
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@ -19,7 +19,7 @@
{{ var5 }} {{ var6 }} ip arp-cache-timeout
Once a neighbor has been found, the entry is considered to be valid for at
least for this specifc time. An entry's validity will be extended if it
least for this specific time. An entry's validity will be extended if it
receives positive feedback from higher level protocols.
This defaults to 30 seconds.
@ -63,6 +63,22 @@
set interfaces {{ var0 }} {{ var1 }} {{ var2 }} {{ var4 }} {{ var5 }} {{ var7 }} ip disable-forwarding
.. cfgcmd:: set interfaces {{ var0 }} <interface> {{ var2 }} {{ var3 }}
{{ var5 }} {{ var6 }} ip enable-directed-broadcast
Define different modes for IP directed broadcast forwarding as described in
:rfc:`1812` and :rfc:`2644`.
If configured, incoming IP directed broadcast packets on this interface will
be forwarded.
If this option is unset (default), incoming IP directed broadcast packets
will not be forwarded.
.. code-block:: none
set interfaces {{ var0 }} {{ var1 }} {{ var2 }} {{ var4 }} {{ var5 }} {{ var7 }} ip enable-directed-broadcast
.. cfgcmd:: set interfaces {{ var0 }} <interface> {{ var2 }} {{ var3 }}
{{ var5 }} {{ var6 }} ip enable-arp-accept

11
docs/configuration/system/ip.rst
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@ -9,6 +9,15 @@ System configuration commands
Use this command to disable IPv4 forwarding on all interfaces.
.. cfgcmd:: set system ip disable-directed-broadcast-forwarding
Use this command to disable IPv4 directed broadcast forwarding on all
interfaces.
If set, IPv4 directed broadcast forwarding will be completely disabled
regardless of whether per-interface directed broadcast forwarding is
enabled or not.
.. cfgcmd:: set system ip arp table-size <number>
Use this command to define the maximum number of entries to keep in
@ -67,4 +76,4 @@ And the different IPv4 **reset** commands available:
bgp Clear Border Gateway Protocol (BGP) statistics or status
igmp IGMP clear commands
multicast IP multicast routing table
route Reset IP route
route Reset IP route