RouterOS manual

Nd



ipv6/nd

Type: Directory

IPv6 Neighbor Discovery (ND) protocol is configured.

ParameterTypeDescription
Xdisableddisabled
Iinvalidinvalid
*defaultdefault

Interface on which to run neighbor discovery. -all - run ND on all running interfaces.

ParameterTypeDescription
ra-intervalMinimum and maximum interval allowed between unsolicited multicast router advertisements from the interface.
ra-delaytimeMinimum time between multicast router advertisements from the interface.

The MTU option in router advertisements ensures that all nodes on a link use the same MTU value when the link MTU is not well known.

  • unspecified - do not send the MTU option.
ParameterTypeDescription
reachable-timeTime that RouterOS assumes a neighbor is reachable after receiving a reachability confirmation. Used by Neighbor Unreachability Detection (see Section 7.3 of RFC 4861).
retransmit-intervalTime between retransmitted Neighbor Solicitation messages. Used by address resolution and Neighbor Unreachability Detection (see Sections 7.2 and 7.3 of RFC 4861).
ra-lifetimeSet the RA lifetime. A lifetime of 0 indicates that this router is not a default router. See Section 6.2.1 of RFC 4861.
ra-preferenceenum (low | medium | high)Specify the router preference communicated to IPv6 hosts in router advertisements. The ra-preference value helps hosts select a default router to reach a remote destination.
hop-limitDefault value placed in the Hop Count field of the IPv6 header for outgoing unicast packets.
advertise-mac-addressboolWhen set, include the outgoing interface's link-layer address in router advertisements.

Redistribute DNS server information using RADVD.

  • no - do not advertise DNS servers.
  • yes - advertise DNS servers installed on the router.
  • self - advertise the interface link-local address as the DNS service provider.
ParameterTypeDescription
managed-address-configurationboolIndicates whether hosts should use stateful autoconfiguration (DHCPv6) to obtain addresses. See RFC 3315.
other-configurationboolIndicates whether hosts should use stateful autoconfiguration to obtain additional information, excluding addresses. See RFC 3315.
dnsSpecify one or more IPv6 addresses that hosts receive for DNS server configuration.
pref64Specify one or more IPv6 prefixes within /32, /40, /48, /56, /64, or /96 subnets that hosts receive as NAT64 prefixes.

Source

Updated 2026-08-22.