Actually Laz I want to say that we know sender sends arp request for the destination host and somewhere is a attacker as well who will send fake arp reply in place of actual destination host so I want to know after sending arp request by sender, will it first catch by attacker, if yes then how request reaches to the original destination host and when attacker send arp reply to sender, does attacker send fake reply to sender and forward the arp request to the destination simultaneously and is this forwarded arp request from attacker or sender, and please also mention the address being used by devices(sender/attacker/receiver) when they send/forward arp reply/request packet.
You can say I just want to know how this whole process happening b/w source host, destination host and attacker, when and who will send arp request/reply to whom.