CCR2004 / ROS7 / ipv6 neighbor discovery issues.

RouterOS General
1

Hello,

I have a setup with an ISP running Juniper MX204 and a CCR2004 as “customer” (me).
On IPv6, I have periodic neighbor discovery that getting stalled as neighbor (eg ISP).

As a result I got some packet loss during the time the neighbor is rediscovering the neighbor.

On an other old router I got rid of that by setting those 2 parameters on the interfaces that are connected to Juniper MX204

  • set system ipv6 neighbor base-reachable-time 8000
  • set system ipv6 neighbor stale-time 5000

So now I try to find a way to do the same on Mikrotik RoS 7…
Any hint ?

Thanks !

2

We finaly found what was the problem.
ISP was enforcing BCP38… and forgot … to add fe80::/10 to the rules :slight_smile:

Now this is fixed.