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108 lines
3.5 KiB
ReStructuredText
108 lines
3.5 KiB
ReStructuredText
##
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IP
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##
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System configuration commands
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-----------------------------
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.. cfgcmd:: set system ip disable-forwarding
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Use this command to disable IPv4 forwarding on all interfaces.
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.. cfgcmd:: set system ip disable-directed-broadcast
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Use this command to disable IPv4 directed broadcast forwarding on all
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interfaces.
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If set, IPv4 directed broadcast forwarding will be completely disabled
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regardless of whether per-interface directed broadcast forwarding is
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enabled or not.
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.. cfgcmd:: set system ip arp table-size <number>
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Use this command to define the maximum number of entries to keep in
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the ARP cache (1024, 2048, 4096, 8192, 16384, 32768).
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.. cfgcmd:: set system ip multipath layer4-hashing
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Use this command to use Layer 4 information for IPv4 ECMP hashing.
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Zebra/Kernel route filtering
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Zebra supports prefix-lists and Route Mapss to match routes received from
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other FRR components. The permit/deny facilities provided by these commands
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can be used to filter which routes zebra will install in the kernel.
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.. cfgcmd:: set system ip protocol <protocol> route-map <route-map>
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Apply a route-map filter to routes for the specified protocol. The following
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protocols can be used: any, babel, bgp, connected, eigrp, isis, kernel,
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ospf, rip, static, table
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.. note:: If you choose any as the option that will cause all protocols that
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are sending routes to zebra.
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Nexthop Tracking
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^^^^^^^^^^^^^^^^
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Nexthop tracking resolve nexthops via the default route by default. This is enabled
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by default for a traditional profile of FRR which we use. It and can be disabled if
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you do not wan't to e.g. allow BGP to peer across the default route.
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.. cfgcmd:: set system ip nht no-resolve-via-default
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Do not allow IPv4 nexthop tracking to resolve via the default route. This
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parameter is configured per-VRF, so the command is also available in the VRF
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subnode.
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Operational commands
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--------------------
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show commands
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^^^^^^^^^^^^^
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See below the different parameters available for the IPv4 **show** command:
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.. code-block:: none
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vyos@vyos:~$ show ip
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Possible completions:
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access-list Show all IP access-lists
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as-path-access-list
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Show all as-path-access-lists
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bgp Show Border Gateway Protocol (BGP) information
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community-list
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Show IP community-lists
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extcommunity-list
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Show extended IP community-lists
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forwarding Show IP forwarding status
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groups Show IP multicast group membership
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igmp Show IGMP (Internet Group Management Protocol) information
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large-community-list
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Show IP large-community-lists
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multicast Show IP multicast
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ospf Show IPv4 Open Shortest Path First (OSPF) routing information
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pim Show PIM (Protocol Independent Multicast) information
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ports Show IP ports in use by various system services
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prefix-list Show all IP prefix-lists
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protocol Show IP route-maps per protocol
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rip Show Routing Information Protocol (RIP) information
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route Show IP routes
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reset commands
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^^^^^^^^^^^^^^
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And the different IPv4 **reset** commands available:
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.. code-block:: none
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vyos@vyos:~$ reset ip
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Possible completions:
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arp Reset Address Resolution Protocol (ARP) cache
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bgp Clear Border Gateway Protocol (BGP) statistics or status
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igmp IGMP clear commands
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multicast IP multicast routing table
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route Reset IP route
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