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IPv4和IPv6头部结构实现（C语言定义）

2011-04-14 11:07:19| 分类：技术探讨 | 标签： |举报 |字号大中小订阅

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//IPv6头部结构定义

typedef struct _IPv6Hdr
{
unsigned   char   first_4[4]; //前4个字节，包含版本(4位)、流量类型(8位)、流标签(20位)
unsigned   short payload_len;   //载荷长度16位
unsigned   char   next_hdr; //下一个报头8位
unsigned   char   hop_limit;//跳数限制8位
struct   in6_addr   ip_src; //源地址128位
struct   in6_addr   ip_dst; //目的地址128位
}IPv6Hdr;

//IPv4头部结构定义

typedef struct _IPv4Hdr
{
u_char Version_HLen;
u_char TOS;
short Length;
short Ident;
short Flags_Offset;
u_char TTL;
u_char Protocol;
short Checksum;
unsigned int SourceAddr;
unsigned int DestinationAddr;
} IPv4Hdr;

模拟IPv6首部数据，并读取IPv6版本实例程序下载：

http://www.liuzhigong.com/download/ipv6_header_test_ver.c

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