How does disable-ipv6 work?

RouterOS General
1

Hi,

I am confused by the documentation of disable-ipv6. It says:

Enable/disable system wide IPv6 settings (prevents LL address generation)

What is “LL”? Is it link-local? Is it too much for MikroTik to write in a clear language?

My general question is: Does disable-ipv6 relate only to link-local addresses (LAN) or does it actually block any communication with IPv6 WAN hosts (e.g. websites which have only IPv6 addresses and do not have IPv4 ones), thus making them inaccessible?

2

LL in context of ipv6 is commonly refered to as LinkLocal. it is not too hard to co-relate

if ipv6 is disabled completely on ros, no LL adr. generation happens, no ipv6 routing/forwarding accurs, hence ipv6 communication is not active through the router or to the router

i terms of ipv6 firewall - can imagine there are silent drops then.

3

Does disable-ipv6 make the (default) IPv6 firewall futile in the sense it will simply not be used?

4

i assume but cannot verify (not using ipv6 anymore at the moment)

but you can check with a ipv6 drop rule on the '“input” and “forward” chaing with “log=yes” to see what happens (if something happens)