blocks|key|469404|text|使其更快的唯一方法是测试mac地址是否已经存在于arp表中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|469405|#!/bin/bash

#+extract+ip+from+local+arp+table
ip=$(arp+%7C+grep+20:64:32:3F:B1:A9+%7C+awk+'+{+print+$1+}+')

#+found+an+ip+tied+to+the+mac+address?
if+[+!+-z+$ip+];+then

++++#+if+found,+do+you+want+to+ping+it?
++++ping+$ip
else
++++echo+"Not+found+into+local+arp+table.+Trying+another+way..."

++++#+wanna+try+your+nmap+strategy?
++++#+sudo+nmap+-sP+192.168.15.1/24+%7C+grep++20:64:32:3F:B1:A9
fi;|code-block|syntax|javascript|469406|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

The only way to make it faster is to test if the mac address is already into your arp table

<pre><code>#!/bin/bash

# extract ip from local arp table
ip=$(arp | grep 20:64:32:3F:B1:A9 | awk ' { print $1 } ')

# found an ip tied to the mac address?
if [ ! -z $ip ]; then

 # if found, do you want to ping it?
 ping $ip
else
 echo "Not found into local arp table. Trying another way..."

 # wanna try your nmap strategy?
 # sudo nmap -sP 192.168.15.1/24 | grep 20:64:32:3F:B1:A9
fi;
</code></pre>

blocks|key|1412746|text|您无法ping通MAC地址。您只能ping一个IP地址，因此您要做的是找出哪个IP地址属于某个MAC地址，然后ping该IP。ARP用于查找具有特定IP地址的机器的MAC地址，但您不能真正地进行相反的操作(从技术上讲，存在一种称为Reverse+ARP的协议，但它从未在典型操作系统中使用过)。一旦找到MAC地址，它将被保存在ARP缓存中，这样您就不必在几分钟内再次查找它，但这不是查找MAC的可靠方法，因为条目不会在缓存中停留很长时间。您已经知道如何创建静态条目，但是如果您将192.168.15.196硬编码到该MAC地址，为什么不直接ping+192.168.15.196+(这就是您要做的全部工作)？|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1412747|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/Reverse_Address_Resolution_Protocol^0|37|B|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

You can't ping a MAC address. You can only ping an IP address, so what you're trying to do is find out what IP address belongs to a certain MAC Address and ping that IP. ARP is used to find the MAC address of a machine with a certain IP address, but you can't really go the other way around (technically a protocol called <a href="http://en.wikipedia.org/wiki/Reverse_Address_Resolution_Protocol" rel="noreferrer">Reverse ARP</a> exists, but it's never used in typical operating systems). Once the MAC address is found, it'll be kept in the ARP cache so you don't have to look it up again for a few minutes, but that's not a reliable way to find the MAC because entries don't stay in the cache long. You figured out how to make a static entry, but if you're hard coding 192.168.15.196 to that MAC address, why don't you just ping 192.168.15.196 (that's all you're doing anyway)?

blocks|key|4763290|text|nmap提供了-T选项来加速这类操作。-T+5是最快的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4763291|您还可以尝试使用--min-parallelism选项。|4763292|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

nmap has the -T option to speed things like this up. -T 5 is the fastest.

You can also try the --min-parallelism option.

blocks|key|1412818|text|将上述答案合并到一个脚本中：(用法：macping+aa:bb:cc:dd:ee:ff)|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1412819|#!/bin/bash
network=192.168.1.1/24
if+[+"$#"+-ne+1+];+then+echo+Usage+example:+$0+aa:bb:cc:dd:ee:ff;+exit+2;+fi;
nmap+-sP+-T4+$network+>&+/dev/null
ip=$(arp+-n+%7C+grep+$1+%7C+awk+'+{+print+$1+}')
ping+$ip+-n+-q+-c+2+-i+0.2+-w+1+>&+/dev/null
if+[+$?+-eq+0+];+then
++++echo+Device+is+online+$$ip$
else
++++echo+Device+is+offline
++++exit+1
fi;|code-block|syntax|javascript|1412820|扩展:按mac地址维护网络设备列表，并显示每个设备的联机/脱机状态。|1412821|用途包括：|1412822|wifi+wifi监控您的服务器status's|1412823|checking您的互联网连接已启动|unordered-list-item|1412824|
|1412825|检查特定设备是否已连接到您的wifi|1412826|1412827|检查您的智能电视是否真的已关闭|1412828|1412829|等|1412830|1412831|每个设备名称在联机时显示为绿色，在脱机时显示为红色。|1412832|当设备状态更改时，将显示桌面通知。|1412833|在linux+mint下测试，应该可以在其他发行版上工作。|1412834|#!/bin/bash

#Create+associated+array's+
declare+-A+devicelist+#device+name:+mac+address
declare+-A+statuslist+#device+name:+online+status

devicelist[Server01]=aa:bb:cc:dd:ee:01
devicelist[Server02]=aa:bb:cc:dd:ee:02
devicelist[MyPhone]+=aa:bb:cc:dd:ee:03
devicelist[SmartTV]+=aa:bb:cc:dd:ee:04

#Colour+Constants
BRed='\033[1;31m'++
BGreen='\033[1;32m'+
Reset='\033[m'

function+mactoip(){
++echo+$(arp+-n+%7C+grep+-i+$mac+%7C+awk+'+{+print+$1+}')
}

while+[+true+];+do
++++clear
++++arp_cache_rebuilt=no
++++for+devicename+in+${!devicelist[@]};+do
++++++++status=OFFLINE
++++++++mac=${devicelist[${devicename}]}
++++++++ip=$(+mactoip+$mac+)
++++++++if+[+-z+$ip+]+&&+[+$arp_cache_rebuilt+=+"no"+];+then
++++++++++++#we+need+to+rebuild+the+arp+cache...
++++++++++++nmap+-sn+-T4+192.168.1.0/24+>&+/dev/null
++++++++++++ip=$(+mactoip+$mac+)
++++++++++++arp_cache_rebuilt=yes
++++++++fi;

++++++++if+[+!+-z+$ip+];+then
++++++++++++ping+$ip+-n+-q+-c+2+-i+0.2+-w+1+>&+/dev/null
++++++++++++if+[+$?+-eq+0+];+then+status=ONLINE;+fi
++++++++fi;
++++++++#if+device's+previous+status+not+yet+recorded,+then+set+it+now.
++++++++if+[+!+${statuslist[${devicename}]%2B_}+];+then+statuslist[${devicename}]=$status;+fi

++++++++if+[+$status+=+"ONLINE"+];+then+colour=$BGreen;+else+colour=$BRed;+fi;
++++++++echo+-e+${colour}${devicename}${Reset}+-+$ip
++++++++if+[+${statuslist[${devicename}]}+!=+$status+];+then
++++++++++notify-send+-i+ac-adapter+-u+critical+-t+1000+$status+"$devicename"
++++++++fi;
++++++++statuslist[$devicename]=$status
++++done
++++echo+-
++++sleep+5
done|1412835|entityMap^0|I|P|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1E|8|@$9|1F|A|1G|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|1H|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|1I|8|@]|D|@]|E|$]]|$1|M|3|N|5|6|7|1J|8|@]|D|@]|E|$]]|$1|O|3|P|5|6|7|1K|8|@]|D|@]|E|$]]|$1|Q|3|R|5|S|7|1L|8|@]|D|@]|E|$]]|$1|T|3|U|5|6|7|1M|8|@]|D|@]|E|$]]|$1|V|3|W|5|S|7|1N|8|@]|D|@]|E|$]]|$1|X|3|U|5|6|7|1O|8|@]|D|@]|E|$]]|$1|Y|3|Z|5|S|7|1P|8|@]|D|@]|E|$]]|$1|10|3|U|5|6|7|1Q|8|@]|D|@]|E|$]]|$1|11|3|12|5|S|7|1R|8|@]|D|@]|E|$]]|$1|13|3|-4|5|6|7|1S|8|@]|D|@]|E|$]]|$1|14|3|15|5|6|7|1T|8|@]|D|@]|E|$]]|$1|16|3|17|5|6|7|1U|8|@]|D|@]|E|$]]|$1|18|3|19|5|6|7|1V|8|@]|D|@]|E|$]]|$1|1A|3|1B|5|H|7|1W|8|@]|D|@]|E|$I|J]]|$1|1C|3|-4|5|6|7|1X|8|@]|D|@]|E|$]]]|1D|$]]

Combining the above good answers into a single script:
(Usage: <code>macping aa:bb:cc:dd:ee:ff</code>)

<pre><code>#!/bin/bash
network=192.168.1.1/24
if [ "$#" -ne 1 ]; then echo Usage example: $0 aa:bb:cc:dd:ee:ff; exit 2; fi;
nmap -sP -T4 $network &gt;&amp; /dev/null
ip=$(arp -n | grep $1 | awk ' { print $1 }')
ping $ip -n -q -c 2 -i 0.2 -w 1 &gt;&amp; /dev/null
if [ $? -eq 0 ]; then
 echo Device is online $$ip$
else
 echo Device is offline
 exit 1
fi;
</code></pre>

Extending: To maintain a list of network devices, by mac address, and display the online/offline status of each. 
Uses include: 

<ul>
<li>Monitoring your server status's</li>
<li>checking your internet connection is up</li>
<li>checking if a specific device has connected to your wifi</li>
<li>checking your smart TV is really off</li>
<li>etc </li>
</ul>

Each device name is displayed in green if online, red if offline. 
A desktop notification is displayed when a device status changes.

Tested under linux mint, should work on other distro's.

<pre><code>#!/bin/bash

#Create associated array's 
declare -A devicelist #device name: mac address
declare -A statuslist #device name: online status

devicelist[Server01]=aa:bb:cc:dd:ee:01
devicelist[Server02]=aa:bb:cc:dd:ee:02
devicelist[MyPhone] =aa:bb:cc:dd:ee:03
devicelist[SmartTV] =aa:bb:cc:dd:ee:04

#Colour Constants
BRed='\033[1;31m' 
BGreen='\033[1;32m' 
Reset='\033[m'

function mactoip(){
 echo $(arp -n | grep -i $mac | awk ' { print $1 }')
}

while [ true ]; do
 clear
 arp_cache_rebuilt=no
 for devicename in ${!devicelist[@]}; do
 status=OFFLINE
 mac=${devicelist[${devicename}]}
 ip=$( mactoip $mac )
 if [ -z $ip ] &amp;&amp; [ $arp_cache_rebuilt = "no" ]; then
 #we need to rebuild the arp cache...
 nmap -sn -T4 192.168.1.0/24 &gt;&amp; /dev/null
 ip=$( mactoip $mac )
 arp_cache_rebuilt=yes
 fi;

 if [ ! -z $ip ]; then
 ping $ip -n -q -c 2 -i 0.2 -w 1 &gt;&amp; /dev/null
 if [ $? -eq 0 ]; then status=ONLINE; fi
 fi;
 #if device's previous status not yet recorded, then set it now.
 if [ ! ${statuslist[${devicename}]+_} ]; then statuslist[${devicename}]=$status; fi

 if [ $status = "ONLINE" ]; then colour=$BGreen; else colour=$BRed; fi;
 echo -e ${colour}${devicename}${Reset} - $ip
 if [ ${statuslist[${devicename}]} != $status ]; then
 notify-send -i ac-adapter -u critical -t 1000 $status "$devicename"
 fi;
 statuslist[$devicename]=$status
 done
 echo -
 sleep 5
done
</code></pre>

blocks|key|4763404|text|这是另一个更简单的答案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4763405|ping+$(arp-scan+--localnet+%7C+grep+80:1f:02:fa:90:b7++%7C+awk+'+{+printf+$1+}+')|code-block|syntax|javascript|4763406|请注意，mac地址必须使用小写字母。|4763407|arp-scan似乎比arp运行得快得多。|4763408|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Here is another and rather simpler answer.

<pre><code>ping $(arp-scan --localnet | grep 80:1f:02:fa:90:b7 | awk ' { printf $1 } ')
</code></pre>

Note that the mac address has to use lower case letters.

arp-scan seems to run much faster than arp.

I want to ping a known MAC address, I tried to use nmap:

<pre><code>sudo nmap -sP 192.168.15.1/24 | grep 20:64:32:3F:B1:A9
</code></pre>

But in this case its ping all the 255 IP address (from 192.168.15.1 to 192.168.15.255) until get my MAC address, and that take a long time about 4 sec.!

any idea please?

How to ping MAC address in Linux

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我想ping一个已知的MAC地址，我尝试使用nmap：sudo nmap -sP 192.168.15.1/24 | grep  20:64:32:3F:B1:A9但在本例中，它ping所有255个IP地址(从192.168.15.1到192.168.15.255)，直到获得我的MAC地址，这需要大约4秒的长时间。！有什么想法吗？

问如何在Linux下ping MAC地址
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回答 5

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