LinuxQuestions.org
Review your favorite Linux distribution.
Home Forums Tutorials Articles Register
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Networking
Reload this Page ipaddress syntax - iptables
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 03-31-2003, 12:17 PM   #1
arobinson74
Member
 
Registered: Nov 2002
Location: Lone Tree, CO
Distribution: Xubuntu Gutsy
Posts: 174

Rep: Reputation: 30
Question ipaddress syntax - iptables

Major newbie question for you. When using a slash in the IPAddress, what is the number after the slash?

192.168.0.0/24

Does this mean the range 192.168.0.0 to 192.168.0.24 or something different?
 
Old 03-31-2003, 12:22 PM   #2
Pcghost
Senior Member
Contributing Member
 
Registered: Feb 2003
Location: The Arctic
Distribution: Fedora, Debian, OpenSuSE and Android
Posts: 1,820

Rep: Reputation: 46
The number specifies the subnet mask that is used. /24 is the same as /255.255.255.0. It tells the firewall how many bits to mask in the address.
 
Old 03-31-2003, 12:31 PM   #3
jpbarto
Senior Member
Contributing Member
 
Registered: Mar 2003
Location: Pittsburgh, PA
Distribution: Gentoo / NetBSD
Posts: 1,251

Rep: Reputation: 45
according to the iptables man page a spec of
192.168.0.0/24 would be read as
ip_address/mask

to spec a range it looks like you would enter
192.168.0.0-192.168.0.24
 
Old 03-31-2003, 12:34 PM   #4
arobinson74
Member
 
Registered: Nov 2002
Location: Lone Tree, CO
Distribution: Xubuntu Gutsy
Posts: 174

Original Poster
Rep: Reputation: 30
Thanks
Thanks, just what I was looking for
 
  


Reply



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
Iptables syntax puzzler tantric Linux - Security 6 03-22-2005 06:46 PM
What's wrong with this iptables syntax?? registering Linux - Security 3 06-16-2004 03:54 PM
iptables syntax question Poetics Linux - Security 4 12-24-2003 03:32 PM
iptables syntax Ge64 Linux - Security 3 08-20-2003 10:56 PM
iptables SYNTAX jrgalan Linux - Security 2 07-31-2003 12:54 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Networking

All times are GMT -5. The time now is 07:30 AM.

Contact Us - Advertising Info - Rules - Privacy - LQ Merchandise - Donations - Contributing Member - LQ Sitemap -
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
Open Source Consulting | Domain Registration