Fedora Linux Support Community & Resources Center

Go Back   FedoraForum.org > Fedora 17/18 > Servers & Networking
FedoraForum Search

Forgot Password? Join Us!

Servers & Networking Discuss any Fedora server problems and Networking issues such as dhcp, IP numbers, wlan, modems, etc.

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 9th January 2012, 04:15 AM
drnetsys Offline
Registered User
 
Join Date: Jan 2011
Location: Louisburg NC
Posts: 126
linuxfirefox
Strange Netmask and Broadcast behavior

Ok guys I am at a lost. I have a nfs server running f16 in runlevel3. My eth1 card is strange. I set the ip netmask gw in systmem-config-network-tui to 172.168.1.1 255.255.255.0 172.168.1.254. I have changed the /etc/sysconfig/network-scripts/ifcfg-eth1 to the same Ip info. ifdown eth1 and ifup eth1 and the ip stays 172.168.1.1 but the netmask changes to 248.0.0.0 and the Broadcast is 175.255.255.255. the only way i can get it to work is ifconfig eth1 172.168.1.1 netmask 255.255.255.0 and it will run untill reboot. any ideas?
Reply With Quote
  #2  
Old 9th January 2012, 06:02 AM
scott9harvey0l Offline
Registered User
 
Join Date: Dec 2010
Location: Buellton California USA
Posts: 13
linuxfirefox
Re: Strange Netmask and Broadcast behavior

Quote:
Originally Posted by drnetsys View Post
Ok guys I am at a lost. I have a nfs server running f16 in runlevel3. My eth1 card is strange. I set the ip netmask gw in systmem-config-network-tui to 172.168.1.1 255.255.255.0 172.168.1.254. I have changed the /etc/sysconfig/network-scripts/ifcfg-eth1 to the same Ip info. ifdown eth1 and ifup eth1 and the ip stays 172.168.1.1 but the netmask changes to 248.0.0.0 and the Broadcast is 175.255.255.255. the only way i can get it to work is ifconfig eth1 172.168.1.1 netmask 255.255.255.0 and it will run untill reboot. any ideas?
When I was setting up my FC16 system I had problems with Net-Manager and the older RH
system-config-network-gui. You need to make sure the interface device name matches the
MAC hardware address of the interface you are tying to configure. There were times I was going
to just write my own script and disable the gui built scripts altogether. I was able to get things
to work between using the Netmanager (the applet in the upper right of the gnome desktop gui)
and system-config-network-gui. In order to insure you are updating the correct device p1p1 pip2 ..
eth1.. eth2 in system-config-network-gui edit the interface you want a dialog box comes up with 3 tabs
go to the tab labeled hardware press probe next to the Bind to MAC address field.

Also the actual Ethernet device names are different than what you may be used to. A Fedora enhancement to have device names reflect how the the actual hardware is configured. There are way
around this, see http://fedoraproject.org/wiki/Featur...rkDeviceNaming
The command below can be use test your configuration without have to use a gui or reboot.
The service script still works here even though fedora system have adopted systemd for Linux system
boot up.

service network restart

Hope this helps.
Reply With Quote
Reply

Tags
behavior, broadcast, netmask, strange

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Strange dvd behavior gugus Hardware & Laptops 10 12th September 2005 10:22 AM


Current GMT-time: 11:32 (Wednesday, 19-06-2013)

TopSubscribe to XML RSS for all Threads in all ForumsFedoraForumDotOrg Archive
logo

All trademarks, and forum posts in this site are property of their respective owner(s).
FedoraForum.org is privately owned and is not directly sponsored by the Fedora Project or Red Hat, Inc.

Privacy Policy | Term of Use | Posting Guidelines | Archive | Contact Us | Founding Members

Powered by vBulletin® Copyright ©2000 - 2012, vBulletin Solutions, Inc.

FedoraForum is Powered by RedHat