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arping
Test the network by sending ARP protocol packets
Additional information
The arping command is a tool used to send arp requests to a neighboring host. arping uses arp packets to check the hardware address on the device through the ping command. Ability to test whether an IP address is already in use on the network and obtain more device information. The function is similar to ping.
grammar
arping [选项] [参数]
Options
- -b: Used to send Ethernet broadcast frames (FFFFFFFFFFFF). arping uses the broadcast address initially and the unicast address after receiving the response.
- -q: quiet output does not display any information;
- -f: Indicates to exit after receiving the first response message;
- -w timeout: Set a timeout in seconds. If the specified time is reached and arping has not fully received the response, it will exit;
- -c count: Indicates that it will stop after sending the specified number of ARP request packets. If the deadline option is specified, arping will wait for the same number of arp response packets until timeout;
- -s source: Set the value of the SPA field in the arp packet sent by arping. If it is empty, proceed as follows. If it is DAD mode (conflict address detection), it is set to 0.0.0.0. If it is Unsolicited ARP mode (Gratutious ARP), it is set to the target address, otherwise it is derived from the routing table;
- -I interface: Set the network interface used by ping.
parameter
Destination host: Specify the destination host for sending ARP messages.
Example
[root@localhost ~]# arping www.baidu.com
ARPING 220.181.111.147 from 173.231.43.132 eth0
Unicast reply from 220.181.111.147 00:D0:03:[bc:48:00] 1.666ms
Unicast reply from 220.181.111.147 [00:D0:03:BC:48:00] 1.677ms
Unicast reply from 220.181.111.147 [00:D0:03:BC:48:00] 1.691ms
Unicast reply from 220.181.111.147 [00:D0:03:BC:48:00] 1.728ms
Unicast reply from 220.181.111.147 [00:D0:03:BC:48:00] 1.626ms
Unicast reply from 220.181.111.147 [00:D0:03:BC:48:00] 1.292ms
Unicast reply from 220.181.111.147 [00:D0:03:BC:48:00] 1.429ms
Unicast reply from 220.181.111.147 [00:D0:03:BC:48:00] 2.042ms
Sent 8 probes (1 broadcast(s))
Received 8 response(s)
ping
Test network connectivity between hosts
Additional information
The ping command is used to test the network connectivity between hosts. Executing the ping command will use the ICMP transport protocol to send a message requesting a response. If there is no problem with the network function of the remote host, it will respond to the message, thus knowing that the host is operating normally.
grammar
ping [选项] [参数]
Options
- -d: Use the SO_DEBUG function of Socket;
- -c <Number of completions>: Set the number of times to complete the request response;
- -f: limit detection;
- -i<interval seconds>: Specify the interval between sending and receiving information;
- -I<network interface>: Use the specified network interface to send data packets;
- -l<preload>: Set the data packet to be sent before sending the required information;
- -n: Output only numerical values;
- -p<template style>: Set the template style for filling data packets;
- -q: Do not display the instruction execution process, except related information at the beginning and end;
- -r: Ignore the ordinary Routing Table and send the data packet directly to the remote host;
- -R: record the routing process;
- -s<packet size>: Set the size of the data packet;
- -t<survival value>: Set the size of the survival value TTL;
- -v: Display the execution process of the command in detail.
- -w <timeout seconds>: No matter how many packets have been sent or received before, as long as this number of seconds is exceeded, the program will exit;
parameter
Destination host: Specify the destination host for sending ICMP messages.
Example
[root@AY1307311912260196fcZ ~]# ping www.jsdig.com
PING host.1.jsdig.com (100.42.212.8) 56(84) bytes of data.
64 bytes from 100-42-212-8.static.webnx.com (100.42.212.8): icmp_seq=1 ttl=50 time=177 ms
64 bytes from 100-42-212-8.static.webnx.com (100.42.212.8): icmp_seq=2 ttl=50 time=178 ms
64 bytes from 100-42-212-8.static.webnx.com (100.42.212.8): icmp_seq=3 ttl=50 time=174 ms
64 bytes from 100-42-212-8.static.webnx.com (100.42.212.8): icmp_seq=4 ttl=50 time=177 ms
...按Ctrl+C结束
--- host.1.jsdig.com ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 2998ms
rtt min/avg/max/mdev = 174.068/176.916/178.182/1.683 ms
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