If there is a network connectivity problem, you can use the tracert command to check the path of the destination IP address that arrives and record the results. The tracert command displays a set of IP routers that are used to pass packets from the computer to the target location, and the time required for each hop . I
lines of China Telecom.Aftersales engineer Ling huchong 17:12:22This operation can only wait for the backbone line of China Telecom to be restored.Frontend 17:12:35Okay, just wait.
PS: tracert is also known as the windows route tracing utility. In command prompt (CMD), The tracert command can be used to determine the
58.221.25.137
6 8 ms 7 ms 7 ms 202.97.39.109
7 Ms Mobile Ms 202.97.46.50
8 258 MS 258 ms 257 MS 219.158.35.93
9 MB Ms 267 ms 265 MS 219.158.13.61
273 MS 273 MS * 219.158.6.222
One 265 ms * 261 MS HN.KD.SMX.ADSL [221.13.223.222]
263 ms 262 ms 262 ms Pc30.zz.ha.cn [61.168.254.30]
265 ms 268 ms 266 MS Pc30.zz.ha.cn [61.168.251.30]
277 MS 278 ms 277 MS Pc0.zz.ha.cn [218.28.7.186]
275 ms 277 MS 278 MS Pc0.zz.ha.cn [218.28.195.106]
Trace complete.
Analysis: The first line is the gateway to my local
Tracert commands use introduction Tracert (tracking Routing) is a routing tracking utility used to determine the path adopted by the IP datagram access target. The Tracert command uses the ip ttl field and the ICMP error message to determine the route from one host to other hosts on the network.
, but directly discard it and send a notification to the source address of the packet, saying that the packet has failed to be transmitted. Each operating system may have different TTL initial values. If you want to view the initial values, you can use the ping command to simplify the process:
Ping 127.0.0.1
Ping your own loop address. In this case, the ping packet will return directly, so the TTL value will not be reduced, so the initial value of TTL
Some might use route-tracking commands, but they don't quite understand the results shown. Let me give you a combination of my explanation.(1) Introduction of tracert commandThe tracert is a routing trace command that, through the return result of this command, can obtain the network devices that the local destination
All along, I am very puzzled by the only one-hop return result when I execute the tracert command at home computer DOS. I thought it was the telecommunications operators over there, so it has not been to investigate what is the real reason.
C:\Documents and Settings\administrator>tracert www.baidu.comTracing route to www.a.shifen.com [220.181.111.148]Over a maxi
For a long time, when I run the Tracert command in DOS on my home computer, I only saw the returned results with only one hop, which made me very puzzled. I thought it was a problem with a telecom operator, so I didn't investigate why.
C: \ Documents ents and Settings \ Administrator> tracert www.baidu.com
Tracing route to www.a.shifen.com [220.181.111.148]Over a
How tracert works
By sending "Internet Control Message Protocol (ICMP)" response packets with different TTL values to the target, the tracert diagnostic program determines the route adopted by the target. Each vro on the path must at least decrease the TTL of the data packet by 1 before forwarding the data packet. When the TTL value on the data packet is reduced to 0, the router should send the "ICMP timeou
The Tracert command is used as a routing tracking and diagnosis utility in both DOS and Unix systems. It sends Internet Control Message Protocol (ICMP) the echo request and the echo response message generate the command line report output for each vro to trace the path. This program is one of the necessary TCP/IP tools for network management. It is often used to
The Tracert (trace route) is the routing trace utility that determines the path taken by IP datagram access targets. The Tracert command uses the IP lifetime (TTL) field and ICMP error messages to determine routes from one host to another host on the network.
Tracert Working principle
The
DatagramCaptured), we can seeTracertCommand is how to use the ip ttl field and ICMP error message to determine the route from one host to other hosts on the network. The TTL (Time to Live) field of the IP packet header is an 8-bit field initially set by the sender. It indicates the effective Time of the packet, that is, the life cycle. For eachVroThe TTL value must be reduced by 1 or less the number of seconds that the datagram stays in the vro.
Because the latency of most vro-forwarded data pac
Run the tracert command to track the IPv6 path, open the "command prompt", and then type tracert-d-6 HostName or tracertIPv6Address % ZoneID, where HostName is the host name of the remote computer. IPv6Address is the IPv6 address of the remote computer. ZoneID is the region ID used for the target address ). The Region
TracertCommand asRoutingThe tracing and diagnosis utility has this command in DOS and Unix systems. It sends an Internet Control Message Protocol (ICMP) echo request and an echo response message, generate command line report output for each vro to track the path. This program is one of the necessary TCP/IP tools for network management. It is often used to test network connectivity and determine the fault lo
1. PingNetwork layer protocol, can only determine whether the host connection between, can not determine whether the port is open.2. TelnetThe application layer protocol is the standard protocol and main form of the Intenet telnet service. Login account password and data plaintext transmission, not encrypted.Window for security reasons, generally disable this command, you need to install (Control Panel-Prog
forwardingWe can configure the application on the remote machine (ldapclienthost) directly to Port 7001 on this machine (not on port 389 of the LDAP server). You can set up a local port forwarding for SSH by executing the following command on Ldapclienthost, for example:$ ssh-l 7001:localhost:389 LdapserverhostThe fol
Enable the Telnet client component to prepare for Ping ports
Under Program interface, select "Turn Windows features on or off" as shown in:
In the dialog box that opens, locate the Telnet client and tick. Finally click "OK", wait a few minutes, the system will open the Telnet client service for you, as shown in:
Ways to Ping ports with the Telnet command
Enter the Telnet test port
Environment system: UbuntuTools: Xshell + VirtualBox1. Test whether the port of the remote host is turned on (Windows command line execution)Telnet 192.168.1.103 80Remote access host 80 port, test host's 80 port is turned on2. Check the local port opening situation (Ubuntu e
Start – Run –cmd Enter the command prompt input Netstat-ano to see all the connected PID in Task Manager to find the program corresponding to this PID if the task Manager does not have the PID this item, you can select "View"-"Choose Column" in Task Manager
Often, we start the application to find that the system needs the port to be occupied by other programs, how to know who owns the
MX6 serial port command line operation of CPU clock speed, mx6 serial port
When using imx6 for project development, you may need to check the clock speed of imx6 or set the clock speed of imx6. The following describes how to operate the imx6 frequency on the serial port command
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