traceroute 命令的基本用法是,在命令提示符后键入 “tracert host_name” 或“tracert ip_address”,其中,tracert 是 traceroute 在 Windows 操作系统上的称呼。 输出有 5 列: 第一列是描述路径的第 n 跳的数值,即沿着该路径的路由器序号; 第二列是第一次往返时延; 第三列是第二次往返时延; 第四列是第三...
traceroute[-hopsHops] [-num] [-portPort] [-srcAddress]Host[PacketSize] 描述 traceroute命令尝试跟踪 IP 信息包到某个因特网主机的路由,方法为:先启动具有较小最大生存时间值(Hops参数)的 UDP 探测包,然后侦听从网关开始沿路的ICMP TIME_EXCEEDED响应。 探测以一个中继段的 Hops 值开始,在返回ICMP PORT...
local_address Optional: Specifies the IP address of a local interface to use for the traceroute. Guidelines Thetraceroutecommand traces the route that packets actually take to their target host. The output shows the IP address of the hops (for example, gateway or routers) and the round trip...
-a Select source IP address, the default is the IP address of the output interface -c Specify the number of echo requests to be sent, the default is 5 -f Set Don't Fragment flag in packet (IPv4-only) -h Specify TTL value for echo requests to be sent, the default is 255 -i Sele...
在发送数据的时系统会自动加上IP头部不需要自己处理,如此一来我们只需要创建一个ICMPPacket数据包并通过socket发送到目标服务器就可以了。 解析ICMP数据 接下来就是要接收服务器向我们返回的ICMP数据了,我们接收到的是带有IP头部的原始数据,所以必须先进行一些处理将ICMP从IP数据包中提取出来,IP数据包由两部分组成:数...
–ip或–inet 此参数的效果和指定”-A inet”参数相同。 4.使用实例: 实例1:无参数使用 命令: netstat 输出: [root@localhost ~]#netstat Active Internet connections (w/o servers) Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 268 192.168.120.204:ssh 10.2.0.68:62420 ESTABLISHED ...
// 3. 设置TTL,发送3个ICMP数据包,每一跳都将递增TTLsetsockopt(sock, IPPROTO_IP, IP_TTL, &ttl,sizeof(ttl)); ++ttl;for(0...3) { // 4. 发送并等待返回的数据包sendto(...);recvfrom(...); // 5. 解析数据包,记录数据,成功条件判断ICMPPacket *packet =unpack(...); ...
Router4#debug arpARP packet debugging is on Router4#ping 172.16.100.5Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.100.5, timeout is 2 seconds: Jan 20 17:19:43.843: IP ARP: creating incomplete entry for IP address: 172.16.100.5 interface Ethernet0 Jan 20 17:19...
Target IP address: 192.168.40.1 !--- The address to ping. Repeat count [5]: Datagram size [100]: Timeout in seconds [2]: Extended commands [n]: y Source address or interface: 172.16.23.2 !---Ping packets are sourced from this address. ...
The most probable cause is the difference in the IPv6 addressing architecture. For example, in IPv6, you can have the same address assigned to multiple interfaces with different destinations. Of course, if you are pinging to public addresses, that is not the case, but the application tries ...