what to check? no IPV6 pings between nodes on the same switch

From: Benoit Chesneau <benoitc_at_enki-multimedia.eu>
Date: Mon, 15 Aug 2022 06:59:49 UTC
I have setup 3 nodes on a fresh Freebsd 13.1-RELEASE-p1. They have the same gateway and IPS are in same /64. All 3 nodes are on the same switch (mikrotik) and same vlan untagged.

I can ping them from an external machine through the router/gateway but the nodes can't ping each others. When I run `ndp-a` it only return the gateway and the node ipv6 (+ their libks) but not the ips of the other nodes.

Previously these nodes wee under linux and were able to ping each others.

What could be the issue? What do I need to check?

Configuration is pretty straightforward:

```

hostname="node1.domain.tld"

keymap="fr.macbook.kbd"

ifconfig_ql0=""

ifconfig_ql0_ipv6="inet6 <PREFIX>::11/64"

ipv6_defaultrouter="<PREFIX>::1"

sshd_enable="YES"

ntpd_enable="YES"

# Set dumpdev to "AUTO" to enable crash dumps, "NO" to disable

dumpdev="AUTO"

zfs_enable="YES"

```

Others machines are `<PREFIX>::12`, `<PREFIX>::13`Sent from Proton Mail for iOS

BenoƮt