[knot-dns-users] Use of recvmmsg in Knot

Dear Knot developers, In Knot 1.6.3, is it safe to leave out the "interfaces" section of the config on a multi-homed server? Will Knot enumerate all the addresses on the host and bind to them, or will it bind to 0.0.0.0 and ::? Secondly, if bound to 0.0.0.0 and ::, will Knot use recvmmsg correctly and set the source address in UDP reply packets to the address the query was sent to? Regards, Anand