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authorrebortg <github@ghlr.de>2020-11-30 20:53:36 +0100
committerrebortg <github@ghlr.de>2020-11-30 20:53:36 +0100
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arrange services and protocols
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-.. _router-advert:
-
-#####################
-Router Advertisements
-#####################
-
-:abbr:`RAs (Router advertisements)` are described in :rfc:`4861#section-4.6.2`.
-They are part of what is known as :abbr:`SLAAC (Stateless Address
-Autoconfiguration)`.
-
-
-Supported interface types:
-
- * bonding
- * bridge
- * ethernet
- * l2tpv3
- * openvpn
- * pseudo-ethernet
- * tunnel
- * vxlan
- * wireguard
- * wireless
- * wirelessmodem
-
-
-Enabling Advertisments
-~~~~~~~~~~~~~~~~~~~~~~~
-
-.. cfgcmd:: set service router-advert interface <interface> ....
-
-.. csv-table::
- :header: "Field", "VyOS Option", "Description"
- :widths: 10, 10, 20
-
- "Cur Hop Limit", "hop-limit", "Hop count field of the outgoing RA packets"
- """Managed address configuration"" flag", "managed-flag", "Tell hosts to use the administered stateful protocol (i.e. DHCP) for autoconfiguration"
- """Other configuration"" flag", "other-config-flag", "Tell hosts to use the administered (stateful) protocol (i.e. DHCP) for autoconfiguration of other (non-address) information"
- "MTU","link-mtu","Link MTU value placed in RAs, exluded in RAs if unset"
- "Router Lifetime","default-lifetime","Lifetime associated with the default router in units of seconds"
- "Reachable Time","reachable-time","Time, in milliseconds, that a node assumes a neighbor is reachable after having received a reachability confirmation"
- "Retransmit Timer","retrans-timer","Time in milliseconds between retransmitted Neighbor Solicitation messages"
- "Default Router Preference","default-preference","Preference associated with the default router"
- "Interval", "interval", "Min and max intervals between unsolicited multicast RAs"
- "DNSSL", "dnssl", "DNS search list to advertise"
- "Name Server", "name-server", "Advertise DNS server per https://tools.ietf.org/html/rfc6106"
-
-Advertising a Prefix
-''''''''''''''''''''
-
-.. cfgcmd:: set service router-advert interface <interface> prefix 2001:DB8::/32
-
-.. csv-table::
- :header: "VyOS Field", "Description"
- :widths: 10,30
-
- "no-autonomous-flag","Prefix can not be used for stateless address auto-configuration"
- "no-on-link-flag","Prefix can not be used for on-link determination"
- "preferred-lifetime","Time in seconds that the prefix will remain preferred (default 4 hours)"
- "valid-lifetime","Time in seconds that the prefix will remain valid (default: 30 days)"
-
-
-Disabling Advertisements
-~~~~~~~~~~~~~~~~~~~~~~~~
-
-To disable advertisements without deleting the configuration:
-
-.. cfgcmd:: set service router-advert interface <interface> no-send-advert
-
-Example Configuration
-~~~~~~~~~~~~~~~~~~~~~
-
-.. code-block:: none
-
- interface eth0.2 {
- default-preference high
- hop-limit 64
- interval {
- max 600
- }
- name-server 2001:4860:4860::8888
- name-server 2001:4860:4860::8844
- other-config-flag
- prefix 2001:DB8:beef:2::/64 {
- valid-lifetime 2592000
- }
- reachable-time 0
- retrans-timer 0
- }