IPv6 Ping work not as expected

RouterOS General
1

Hello to the MikroTik Community,

I have a strange situation with a virtualized MikroTik CHR on Proxmox. One interface is going to a pfSense and when I add an IPv6 address out of the subnet to that interface I can ping the address of the pfSense but get answers in the ping window (and terminal) from the routers IP address itself. Then I captured the interface in RouterOS and also in Proxmox and there aren´t any ICMPv6 packets that are going out from the router. So the reply packets can´t be from the pfSense.
IPv4 works normally
I think there is maybe a bug, because I have no ideas anymore.
If you have an idea what can be the problem, please answer the thread :slight_smile:

2

Proxmox and RouterOS 7.17 may have issues:
http://forum.mikrotik.com/t/ipv6-neighbor-discovery-broken-between-switches/181979/1
http://forum.mikrotik.com/t/chr-downgrade-on-v7/181975/1
https://forum.mikrotik.com/viewtopic.php?t=213941&hilit=Proxmox&start=300#p1125309

3

I have the problem also under ROS 7.16.2 but I will look at these topics.

Thank for your reply

4

I downgraded now first to 7.16.2 and then to 7.15.3 and it doesn´t work with any of that versions.
So maybe the bug is there inside very long and I have not noticed about it or it is something related to proxmox itself.