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12 PING
13 IPCONFIG
14 NETSTAT
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NAREDBENO SUČELJE (Command Prompt line)

PING

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PING je program za koji naredbe pišemo u Naredbenom sučelju (Command Promptu), a pomoću kojega se određuje je li neka IP adresa ili host dostupan. Šalje paket podataka na dotičnu adresu i čeka odgovor.

Uglavnom se koristi kod otkrivanja poteškoća u mrežnom radu (imaju li neka dva računala međusobni kontakt radi otkrivanja software-skog problema ili fizičkog kvara)

Ping

Verifies IP-level connectivity to another TCP/IP computer by sending Internet Control Message Protocol (ICMP) Echo Request messages. The receipt of corresponding Echo Reply messages are displayed, along with round-trip times. Ping is the primary TCP/IP command used to troubleshoot connectivity, reachability, and name resolution. Used without parameters, ping displays help.

Syntax

ping [-t] [-a] [-n Count] [-l Size] [-f] [-i TTL] [-v TOS] [-r Count] [-s Count] [{-j HostList | -k HostList}] [-w Timeout] [TargetName]

Parameters

-t

Specifies that ping continue sending Echo Request messages to the destination until interrupted. To interrupt and display statistics, press CTRL-BREAK. To interrupt and quit ping, press CTRL-C.

-a

Specifies that reverse name resolution is performed on the destination IP address. If this is successful, ping displays the corresponding host name.

-n Count

Specifies the number of Echo Request messages sent. The default is 4.

-l Size

Specifies the length, in bytes, of the Data field in the Echo Request messages sent. The default is 32. The maximum size is 65,527.

-f

Specifies that Echo Request messages are sent with the Don't Fragment flag in the IP header set to 1. The Echo Request message cannot be fragmented by routers in the path to the destination. This parameter is useful for troubleshooting path Maximum Transmission Unit (PMTU) problems.

-i TTL

Specifies the value of the TTL field in the IP header for Echo Request messages sent. The default is the default TTL value for the host. For Windows XP hosts, this is typically 128. The maximum TTL is 255.

-v TOS

Specifies the value of the Type of Service (TOS) field in the IP header for Echo Request messages sent. The default is 0. TOS is specified as a decimal value from 0 to 255.

-r Count

Specifies that the Record Route option in the IP header is used to record the path taken by the Echo Request message and corresponding Echo Reply message. Each hop in the path uses an entry in the Record Route option. If possible, specify a Count that is equal to or greater than the number of hops between the source and destination. The Count must be a minimum of 1 and a maximum of 9.

-s Count

Specifies that the Internet Timestamp option in the IP header is used to record the time of arrival for the Echo Request message and corresponding Echo Reply message for each hop. The Count must be a minimum of 1 and a maximum of 4.

-j HostList

Specifies that the Echo Request messages use the Loose Source Route option in the IP header with the set of intermediate destinations specified in HostList. With loose source routing, successive intermediate destinations can be separated by one or multiple routers. The maximum number of addresses or names in the host list is 9. The host list is a series of IP addresses (in dotted decimal notation) separated by spaces.

-k HostList

Specifies that the Echo Request messages use the Strict Source Route option in the IP header with the set of intermediate destinations specified in HostList. With strict source routing, the next intermediate destination must be directly reachable (it must be a neighbor on an interface of the router). The maximum number of addresses or names in the host list is 9. The host list is a series of IP addresses (in dotted decimal notation) separated by spaces.

-w Timeout

Specifies the amount of time, in milliseconds, to wait for the Echo Reply message that corresponds to a given Echo Request message to be received. If the Echo Reply message is not received within the time-out, the "Request timed out" error message is displayed. The default time-out is 4000 (4 seconds).

TargetName

Specifies the destination, which is identified either by IP address or host name.

/?

Displays help at the command prompt.

Remarks

  • You can use ping to test both the computer name and the IP address of the computer. If pinging the IP address is successful, but pinging the computer name is not, you might have a name resolution problem. In this case, ensure that the computer name you are specifying can be resolved through the local Hosts file, by using Domain Name System (DNS) queries, or through NetBIOS name resolution techniques.
  • This command is available only if the Internet Protocol (TCP/IP) protocol is installed as a component in the properties of a network adapter in Network Connections.

Examples

The following example shows ping command output:

C:\>ping example.microsoft.com

Pinging example.microsoft.com [192.168.239.132] with 32 bytes of data:

Reply from 192.168.239.132: bytes=32 time=101ms TTL=124

Reply from 192.168.239.132: bytes=32 time=100ms TTL=124

Reply from 192.168.239.132: bytes=32 time=120ms TTL=124

Reply from 192.168.239.132: bytes=32 time=120ms TTL=124

To ping the destination 10.0.99.221 and resolve 10.0.99.221 to its host name, type:

ping -a 10.0.99.221

To ping the destination 10.0.99.221 with 10 Echo Request messages, each of which has a Data field of 1000 bytes, type:

ping -n 10 -l 1000 10.0.99.221

To ping the destination 10.0.99.221 and record the route for 4 hops, type:

ping -r 4 10.0.99.221

To ping the destination 10.0.99.221 and specify the loose source route of 10.12.0.1-10.29.3.1-10.1.44.1, type:

ping -j 10.12.0.1 10.29.3.1 10.1.44.1 10.0.99.221

Formatting legend

Format

Meaning

Italic

Information that the user must supply

Bold

Elements that the user must type exactly as shown

Ellipsis (...)

Parameter that can be repeated several times in a command line

Between brackets ([])

Optional items

Between braces ({}); choices separated by pipe (|). Example: {even|odd}

Set of choices from which the user must choose only one

Courier font

Code or program output

 

 

To test a TCP/IP configuration by using the ping command

  1. To quickly obtain the TCP/IP configuration of a computer, open Command Prompt, and then type ipconfig. From the display of the ipconfig command, ensure that the network adapter for the TCP/IP configuration you are testing is not in a Media disconnected state.
  2. At the command prompt, ping the loopback address by typing ping 127.0.0.1.
  3. Ping the IP address of the computer.
  4. Ping the IP address of the default gateway.

If the ping command fails, verify that the default gateway IP address is correct and that the gateway (router) is operational.

  1. Ping the IP address of a remote host (a host that is on a different subnet).

If the ping command fails, verify that the remote host IP address is correct, that the remote host is operational, and that all of the gateways (routers) between this computer and the remote host are operational.

  1. Ping the IP address of the DNS server.

If the ping command fails, verify that the DNS server IP address is correct, that the DNS server is operational, and that all of the gateways (routers) between this computer and the DNS server are operational.

Notes

  • To open a command prompt, click Start, point to All Programs, point to Accessories, and then click Command Prompt.
  • If the ping command is not found or the command fails, you can use Event Viewer to check the System Log and look for problems reported by Setup or the Internet Protocol (TCP/IP) service.
  • The ping command uses Internet Control Message Protocol (ICMP) Echo Request and Echo Reply messages. Packet filtering policies on routers, firewalls, or other types of security gateways might prevent the forwarding of this traffic.
  • The ipconfig command is the command-line equivalent to the winipcfg command, which is available in Windows Millennium Edition, Windows 98, and Windows 95. Windows XP does not include a graphical equivalent to the winipcfg command; however, you can get the equivalent functionality for viewing and renewing an IP address by opening Network Connections, right-clicking a network connection, clicking Status, and then clicking the Support tab.

Used without parameters, ipconfig displays the IP address, subnet mask, and default gateway for all adapters.

  • To run ipconfig, open the command prompt, and then type ipconfig.
  • To open Network Connections, click Start, click Control Panel, and then double-click Network Connections.

 

ping u CMD promptu

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