## Packet arrived on wrong interface for its source address. Drops the
## packet, since there's nowhere sensible to send an error.
+errorchain dns-rate-limit DROP
+## Dropped incoming DNS query due to rate limiting. The source address is
+## suspicious, so don't produce ICMP.
+
errorchain bad-destination-address REJECT
## Packet arrived on non-loopback interface with loopback destination.