What is the purpose of payload in packet too big ICMPv6 message
问题 I have gone through the RFC 4443 and 8201, perhaps I did not understand as I am new to some terminology described in these RFC but I want to understand the implication of using payload in ICMP packet to big message? As per the RFC 4443 Linkt to 4443 RFC The payload will contain as much of invoking packet not exceeding the minimum path MTU in packet to big message. I don't understand the use case of such payload, even in the RFC 8201 there is no mention about the usages of payload. only one