Shell Script to Extract IP Address, MAC Address Information
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This script collects the active MAC addresses, IP addresses, and associated hardware vendor information on a system. It uses the arp command to gather this network information and outputs it to an HTML file. The HTML file displays the IP address, MAC address, and includes a hyperlink to lookup the IEEE vendor information based on the first three octets of the MAC address. It also includes an option to email the results in an HTML formatted email.
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![How To List All MAC Address and IP Address with Vendor Info
Overview
The purpose of this document is to identify to list all the active MAC Address, IP Address and the hardware
vendor information associated with IEEE.
This script will collects information from arp command. Also the script will provide a link to the hardware
vendor of the NIC card; which is first 3 octets of MAC Address.
IP Address
MAC Address
Hyperlink to Hardware Vendor
Applies To
CentOS 7, RHEL 7
Pre-requisites
arp
Shell Script Snippet
#!/bin/bash
(
printf "<HTML>n<TITLE>LAN IPs, MAC Address and Hardware Information </TITLE>n"
printf "<BODY><H1> LAN IPs, MAC Address and Hardware Information</H1>n"
printf "<TABLE border=1>"
arp -a | awk '{print $2,$4}' | awk -F'[().: ]' '{print "<TR><TD><B>IP Address:</B> </TD><TD
width=120px>" $2"."$3"."$4"."$5,"</TD><TD><B>MAC Address: </B></TD><TD
width=120px>",$7":"$8":"$9":"$10":"$11":"$12,"</TD>""<TD width=280px><a
href="http://standards.ieee.org/cgi-bin/ouisearch?"$7$8$9"">IEEE Hardware Vendor Lookup "$7"-
"$8"-"$9"</a></TD></TR>"}'
printf "</TABLE>n"
printf "n</BODY>n</HTML>n"
) | tee ${0##*/}.html # Send Standard Output to file
# Send E-Mail Notification - Snippet
(
echo From: ReceiptsEMailAddress@domain.com
echo To: SendersEMailAddress@domain.com
echo "Content-Type: text/html; "
echo Subject: IP Address - MAC Address and Hardware Vendor Information
echo
cat ${0##*/}.html # Set Cat output as a body of the email](https://image.slidesharecdn.com/listipmacaddressinfo-151029091201-lva1-app6892/85/Shell-Script-to-Extract-IP-Address-MAC-Address-Information-1-320.jpg)
Shell Script to Extract IP Address, MAC Address Information
- 1. How To List All MAC Address and IP Address with Vendor Info Overview The purpose of this document is to identify to list all the active MAC Address, IP Address and the hardware vendor information associated with IEEE. This script will collects information from arp command. Also the script will provide a link to the hardware vendor of the NIC card; which is first 3 octets of MAC Address. IP Address MAC Address Hyperlink to Hardware Vendor Applies To CentOS 7, RHEL 7 Pre-requisites arp Shell Script Snippet #!/bin/bash ( printf "<HTML>n<TITLE>LAN IPs, MAC Address and Hardware Information </TITLE>n" printf "<BODY><H1> LAN IPs, MAC Address and Hardware Information</H1>n" printf "<TABLE border=1>" arp -a | awk '{print $2,$4}' | awk -F'[().: ]' '{print "<TR><TD><B>IP Address:</B> </TD><TD width=120px>" $2"."$3"."$4"."$5,"</TD><TD><B>MAC Address: </B></TD><TD width=120px>",$7":"$8":"$9":"$10":"$11":"$12,"</TD>""<TD width=280px><a href="http://standards.ieee.org/cgi-bin/ouisearch?"$7$8$9"">IEEE Hardware Vendor Lookup "$7"- "$8"-"$9"</a></TD></TR>"}' printf "</TABLE>n" printf "n</BODY>n</HTML>n" ) | tee ${0##*/}.html # Send Standard Output to file # Send E-Mail Notification - Snippet ( echo From: ReceiptsEMailAddress@domain.com echo To: SendersEMailAddress@domain.com echo "Content-Type: text/html; " echo Subject: IP Address - MAC Address and Hardware Vendor Information echo cat ${0##*/}.html # Set Cat output as a body of the email
- 2. How To List All MAC Address and IP Address with Vendor Info ) | sendmail -t A Sample HTML Output