Source Address:源地址,长度为128bit。表示发送方的地址。 Destination Address:目的地址,长度为128bit。表示接收方的地址。 IPv6和IPv4相比,去除了IHL、identifiers、Flags、Fragment Offset、Header Checksum、 Options、Padding域,只增了流标签域,因此IPv6报文头的处理较IPv4大大简化,提高了处理效率。另外,IPv6为了更...
Payload Length:载荷长度; Next Header:下一报文头,用来标识IPv6扩展报文头的信息; Hop Limit:跳数限制,与IPv4中的TTL类似; Source Address:源IP地址; Destination Address:目的IP地址; Extension Headers:扩展报文头信息。 相比较IPv4的报文格式,IPv6的报文格式比较简单,根本原因是IPv6报文格式中引入了IPv6扩展报文...
AnInternet Protocol Version 6 address(IPv6 address) is a numeric label that is used to identify and locate a network interface of a computer or anetwork nodeparticipating in acomputer networkusingIPv6.IP addressesare included in thepacket headerto indicate the source and the destination of each ...
Next header 8比特 下一报头,该字段指明了跟随在IPv6基本报头后的扩展报头的信息类型。 Hop limit 8比特 跳数限制,该字段定义了IPv6数据包所能经过的最大跳数,这个字段和IPv4中的TTL字段非常相似。 Source Address 128比特 该字段表示该报文的源地址。 Destination Address 128比特 该字段表示该报文的...
this address in the most appropriate IPv6 network address format for this address. The buffer dst must be at least INET6_ADDRSTRLEN bytes long.很显然，需要第2个参数指向一个struct in6_addr，这个结构在netinet/in.h中定义：/* IPv6 address */ struct in6_addr { union { uint8_t...
The address of the initial sender of the packet. Destination address –128 bits. The address of the intended recipient of the packet. The intended recipient is not necessarily the recipient if an optional routing header is present. IPv6 Extension Headers IPv6 options are placed in separate ...
The following table shows the Site-Local-Use address format.Table 14–4 Site-Local-Use Addresses 10 bits 38 bits 16 bits 64 bits 1111111011 0 Subnet ID Interface ID For both types of local-use addresses, the Interface ID is an identifier that must be unique in its domain. ...
IPv6 address : 1::2MAC address : 6864-6839-0202 Type : DynamicState : STALE Aging : 136 secondsInterface : XGE3/0/1SVLAN/CVLAN : 1/--VPN instance : --Service instance : --Link ID : --VXLAN ID : --VSI name : --VSI interface : --...
The IPv6 unspecified address cannot be assigned to an interface. The unspecified IPv6 addresses must not be used as destination addresses in IPv6 packets or the IPv6 routing header. An IPv6 address prefix, in the format ipv6-prefix/prefix-length, can be used to represent bit-wise contiguo...
The Next Header field has the value 58, which is the value for ICMPv6. The Hop Limit is set to 64. We can also see source and destination IP address. The prefix fe80: indicates that these two addresses are link-local addresses. Note the first three fields of the ICMPv6 header. They ...