LinuxQuestions.org
Visit Jeremy's Blog.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Networking
User Name
Password
Linux - Networking This forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.

Notices



Reply
 
Search this Thread
Old 12-20-2006, 10:05 AM   #1
Ungluun
LQ Newbie
 
Registered: Aug 2003
Location: Belgium
Distribution: Ubuntu
Posts: 22

Rep: Reputation: 15
Lan subnet and mac addresses firewall


Hi,

I have a ftp server running for my lan.
But I have some problems with the firewall:

I filter the connections using mac addresses, that's a secure way to do it imo.
This seems to work for people within my lan subnet but not for the people of another subnet.
Why can't I see their mac addresses? And what do I have to do to make it possible?

Thanks!
 
Old 12-20-2006, 11:18 AM   #2
amitsharma_26
Member
 
Registered: Sep 2005
Location: New delhi
Distribution: RHEL 3.0/4.0
Posts: 777

Rep: Reputation: 31
Why can't i see mac addresses of different subnet ?
Just because a router forwards it's own mac for cross subnet communications. And for all those packets you'll only be seeing a entry of your own ROUTER in your ARP cache.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mapping IP addresses to MAC addresses basilio Linux - Networking 17 09-12-2007 02:48 AM
problems connecting to a lan from another subnet dsids Linux - Networking 6 08-30-2006 10:31 AM
can MAC addresses be tracked? m00 Linux - Security 7 11-16-2004 10:50 PM
Mac Addresses nixdisciple Linux - Security 6 07-01-2002 11:55 PM
Finding mac addresses Chijtska Linux - Security 5 02-27-2002 05:34 AM


All times are GMT -5. The time now is 12:34 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration