Hi,
An RB4011 on x.x.x.1 is the default gateway but has some routes pointing to a non-Mikrotik router on x.x.x.2. In this scenario, by default, does traffic get routed and forwarded to x.x.x.2, or does the RB4011 default gateway send ICMP redirects. I can't see any specific configuration relating to redirect. Searching for information has so far been unsuccessful, wherever I've seen the term "redirect" it turns out to be referring to NAT redirecting traffic to a different destination IP, rather than ICMP redirect.
Thanks, Tony S