Hello,
I’m fairly new to RouterOS and really new to IPv6. I have IPv6 working with my ISP but I’m curious about the thousands of multicast addresses in the neighbor list for the ether1 (External) interface, there are usually between 4K-6K at any given time. Is this normal? I want to make sure I don’t have something misconfigured.
Here is my IPv6 config:
/ipv6 address
add address=2601:1:c100:1a94: eui-64=yes from-pool=comcast interface=bridge1
/ipv6 dhcp-client
add add-default-route=yes interface=ether1 pool-name=comcast
/ipv6 firewall filter
add chain=input connection-state=established
add chain=input connection-state=related
add chain=input dst-port=546 in-interface=ether1 protocol=udp
add chain=input in-interface=ether1 protocol=icmpv6
add action=drop chain=input in-interface=ether1
add chain=forward connection-state=established
add chain=forward connection-state=related
add action=drop chain=forward connection-state=invalid
/ipv6 nd
set [ find default=yes ] advertise-dns=yes disabled=yes ra-interval=5s-30s
add advertise-dns=yes hop-limit=64 interface=bridge1 managed-address-configuration=yes ra-interval=5s-30s
/ipv6 nd prefix default
set preferred-lifetime=4h valid-lifetime=4h
Thank you!
