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180 lines
5.3 KiB
ReStructuredText
180 lines
5.3 KiB
ReStructuredText
####
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IPv6
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####
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System configuration commands
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-----------------------------
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.. cfgcmd:: set system ipv6 disable-forwarding
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Use this command to disable IPv6 forwarding on all interfaces.
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.. cfgcmd:: set system ipv6 neighbor 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 Neighbor cache (1024, 2048, 4096, 8192, 16384, 32768).
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.. cfgcmd:: set system ipv6 strict-dad
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Use this command to disable IPv6 operation on interface when
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Duplicate Address Detection fails on Link-Local address.
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.. cfgcmd:: set system ipv6 multipath layer4-hashing
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Use this command to user Layer 4 information for ECMP hashing.
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Zebra/Kernel route filtering
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Zebra supports prefix-lists and Route Maps 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 ipv6 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, isis, kernel, ospfv3,
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ripng, 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 want to e.g. allow BGP to peer across the default route.
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.. cfgcmd:: set system ipv6 nht no-resolve-via-default
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Do not allow IPv6 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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.. opcmd:: show ipv6 neighbors
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Use this command to show IPv6 Neighbor Discovery Protocol information.
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.. opcmd:: show ipv6 groups
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Use this command to show IPv6 multicast group membership.
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.. opcmd:: show ipv6 forwarding
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Use this command to show IPv6 forwarding status.
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.. opcmd:: show ipv6 route
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Use this command to show IPv6 routes.
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Check the many parameters available for the `show ipv6 route` command:
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.. code-block:: none
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vyos@vyos:~$ show ipv6 route
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Possible completions:
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<Enter> Execute the current command
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<X:X::X:X> Show IPv6 routes of given address or prefix
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<X:X::X:X/M>
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bgp Show IPv6 BGP routes
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cache Show kernel IPv6 route cache
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connected Show IPv6 connected routes
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forward Show kernel IPv6 route table
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isis Show IPv6 ISIS routes
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kernel Show IPv6 kernel routes
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ospfv3 Show IPv6 OSPF6 routes
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ripng Show IPv6 RIPNG routes
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static Show IPv6 static routes
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summary Show IPv6 routes summary
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table Show IP routes in policy table
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tag Show only routes with tag
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vrf Show IPv6 routes in VRF
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.. opcmd:: show ipv6 prefix-list
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Use this command to show all IPv6 prefix lists
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There are different parameters for getting prefix-list information:
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.. code-block:: none
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vyos@vyos:~$ show ipv6 prefix-list
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Possible completions:
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<Enter> Execute the current command
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<WORD> Show specified IPv6 prefix-list
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detail Show detail of IPv6 prefix-lists
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summary Show summary of IPv6 prefix-lists
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.. opcmd:: show ipv6 access-list
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Use this command to show all IPv6 access lists
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You can also specify which IPv6 access-list should be shown:
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.. code-block:: none
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vyos@vyos:~$ show ipv6 access-list
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Possible completions:
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<Enter> Execute the current command
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<text> Show specified IPv6 access-list
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.. opcmd:: show ipv6 ospfv3
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Use this command to get information about OSPFv3.
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You can get more specific OSPFv3 information by using the parameters
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shown below:
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.. code-block:: none
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vyos@vyos:~$ show ipv6 ospfv3
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Possible completions:
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<Enter> Execute the current command
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area Show OSPFv3 spf-tree information
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border-routers
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Show OSPFv3 border-router (ABR and ASBR) information
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database Show OSPFv3 Link state database information
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interface Show OSPFv3 interface information
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linkstate Show OSPFv3 linkstate routing information
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neighbor Show OSPFv3 neighbor information
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redistribute Show OSPFv3 redistribute External information
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route Show OSPFv3 routing table information
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.. opcmd:: show ipv6 ripng
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Use this command to get information about the RIPNG protocol
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.. opcmd:: show ipv6 ripng status
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Use this command to show the status of the RIPNG protocol
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Reset commands
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^^^^^^^^^^^^^^
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.. opcmd:: reset bgp ipv6 <address>
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Use this command to clear Border Gateway Protocol statistics or
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status.
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.. opcmd:: reset ipv6 neighbors <address | interface>
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Use this command to reset IPv6 Neighbor Discovery Protocol cache for
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an address or interface.
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.. opcmd:: reset ipv6 route cache
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Use this command to flush the kernel IPv6 route cache.
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An address can be added to flush it only for that route.
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