IP Networking

Learn TCP/IP, Internet Protocol, Routing, Routers, Network protocols in this UNIX and Linux forum.

MAC Address - Four Interfaces with the same MAC Address

👤 Login to reply

 
Thread Tools Search this Thread Display Modes
    #1  
Old 10-31-2017
rrodgers rrodgers is offline
Read Only
 
Join Date: Dec 2007
Last Activity: 10 November 2017, 9:45 PM EST
Location: Korea
Posts: 12
Thanks: 3
Thanked 0 Times in 0 Posts
MAC Address - Four Interfaces with the same MAC Address

four interfaces with ifconfig
all interfaces have the same mac. If is not set for unique.
but it still works.
what difference does it make to have all macs the same or different?
Sponsored Links
    #2  
Old 10-31-2017
Neo's Unix or Linux Image
Neo Neo is online now Forum Staff  
Administrator
 
Join Date: Sep 2000
Last Activity: 21 July 2018, 5:39 AM EDT
Location: Asia pacific region
Posts: 14,577
Thanks: 1,032
Thanked 1,438 Times in 698 Posts
You should post the full screenshot of the output of your ifconfig command.
Sponsored Links
    #3  
Old 10-31-2017
rrodgers rrodgers is offline
Read Only
 
Join Date: Dec 2007
Last Activity: 10 November 2017, 9:45 PM EST
Location: Korea
Posts: 12
Thanks: 3
Thanked 0 Times in 0 Posts
Code:
intbe1:         ether 0:20:e0:76:a1:a2 
intbe2: 
        ether 0:20:e0:76:a1:a2 
intbe3: 
        ether 0:20:e0:76:a1:a2


for example all ether mac addresses are the same. should they all be different?

Last edited by rbatte1; 11-03-2017 at 06:28 AM.. Reason: Added CODE tags
    #4  
Old 10-31-2017
Corona688 Corona688 is offline Forum Staff  
Mead Rotor
 
Join Date: Aug 2005
Last Activity: 20 July 2018, 3:26 PM EDT
Location: Saskatchewan
Posts: 22,727
Thanks: 1,194
Thanked 4,351 Times in 4,006 Posts
What are these interfaces? That matters. If three interfaces are configured as a bridge, they might share the same MAC.
Sponsored Links
    #5  
Old 10-31-2017
Neo's Unix or Linux Image
Neo Neo is online now Forum Staff  
Administrator
 
Join Date: Sep 2000
Last Activity: 21 July 2018, 5:39 AM EDT
Location: Asia pacific region
Posts: 14,577
Thanks: 1,032
Thanked 1,438 Times in 698 Posts
Quote:
Originally Posted by rrodgers View Post
four interfaces with ifconfig
all interfaces have the same mac. If is not set for unique.
but it still works.
what difference does it make to have all macs the same or different?
You should take a screen shot of the full output of ifconfig -a and post the screenshot if you want our help.
Sponsored Links
👤 Login to reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

More UNIX and Linux Forum Topics You Might Find Helpful
Thread Thread Starter Forum Replies Last Post
C program to detect duplicate ip address if any after assigning ip address to ethernet interface Gopi Krishna P UNIX for Advanced & Expert Users 3 08-19-2015 11:43 AM
Get DHCP relay interfaces IP address using DHCP gdangoor IP Networking 2 06-29-2013 08:40 AM
Panic kernal-mode address fault on user address 0x14 Twix UNIX for Dummies Questions & Answers 10 06-15-2009 09:42 AM
How to Achive IP address through MAC(Ethernet) address krishnacins IP Networking 3 08-29-2005 08:45 PM
network address and broadcast address? pnxi UNIX for Dummies Questions & Answers 7 11-10-2003 10:29 PM



All times are GMT -4. The time now is 05:40 AM.

Unix & Linux Forums Content Copyrightę1993-2018. All Rights Reserved.
×
UNIX.COM Login
Username:
Password:  
Show Password





Not a Forum Member?
Forgot Password?