Fedora Linux Support Community & Resources Center
  #1  
Old 29th April 2010, 10:58 AM
daniel520 Offline
Registered User
 
Join Date: Mar 2010
Posts: 28
linuxfedorafirefox
weird network problem

hello guys,
i hop some body can help me in this problem , its bit complicated to explain but i"ll try my best
here is my network :


i sit on 172.16.10.27 (fedora) that have VM station (xp) on bridge mode 172.16.10.33 -- for those who are not familiar with vmware its like 2 workstations
i ping my default-getaway the results is :
PING 172.16.10.254 (172.16.10.254) 56(84) bytes of data.
From 172.16.10.1 icmp_seq=2 Destination Host Unreachable
From 172.16.10.1 icmp_seq=3 Destination Host Unreachable
From 172.16.10.1 icmp_seq=4 Destination Host Unreachable

i cant access my cisco router at all form the fedora
this is new problem - all work just fine a week ago - and i dont know what changed in my system
and here is some facts to let you understand a bit about the problem
1. form fedora i can ping my Access-Point 172.16.10.1 and internet only !!!! no other stations in my internal network at all
2. for the vmware station all work like it should be..
3.i restart all systems - even i chaged my AP IP to 172.16.10.253
- ping form fedora still give this same results
- and the weird this that form fedora i still can ping 172.16.10.1 , but i cant access it via http even no 253.
its like fedora still remember old configuration of my internal network
4. also from cisco router i can't ping my fedora - it see the request but wont reply with ICMP replay even after shuting down my firewall (standard fedora Firewall)


i not good in linux to fix this problem , if some-one can help with this it will be really nice - i think its a file in linux that need to be reset or deleted

thanks

---------- Post added 2010-04-29 at 01:50 AM CDT ---------- Previous post was 2010-04-28 at 11:08 PM CDT ----------

i think the problem coming from my virtual machine manager and it make sence ,a week ago i tryed to upgrade and i played with it a bit

virbr1 Link encap:Ethernet HWaddr FE:B2:B9:953:7B
inet addr:172.16.10.1 Bcast:172.16.10.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:117 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:11137 (10.8 KiB)

i'm now looking where to edit this information so i can change the ip address
because the /etc/sysconfig/network dont include this information

---------- Post added at 01:55 AM CDT ---------- Previous post was at 01:50 AM CDT ----------

well guys it got fixed
i remved the interface form the virtual machine manager and now all working ok
im wondering how can i do bridge connection in virtual machine manager becasue this what i tryed to do last week

---------- Post added at 01:58 AM CDT ---------- Previous post was at 01:55 AM CDT ----------

forgot to say the ---- route -C helped me understand the problem
Reply With Quote
  #2  
Old 1st May 2010, 03:40 PM
KKKKKKKK Offline
Registered User
 
Join Date: Apr 2005
Posts: 1
linuxfedorakonqueror
Re: weird network problem

Hi,

Only one question : is it normal to have an address like 172.16.x.y with a subnet mask like 255.255.255.0 ?
Reply With Quote
  #3  
Old 1st May 2010, 04:30 PM
forkbomb's Avatar
forkbomb Offline
Registered User
 
Join Date: May 2007
Location: U.S.
Posts: 4,852
windows_7firefox
Re: weird network problem

Quote:
Originally Posted by KKKKKKKK View Post
Hi,

Only one question : is it normal to have an address like 172.16.x.y with a subnet mask like 255.255.255.0 ?
It's classless, but it's not illegal. Per relevant RFCs 12-bit masks (255.240.0.0) or longer can be used in the 172.16.0.0 address space (called "Class B" under old school classful addressing prior to RFC 1918). (The biggest legal CIDR block within the Class B range is 172.16.0.0/12 -- decimel mask 255.240.0.0)

http://en.wikipedia.org/wiki/Private...address_spaces
See esp. RFC 1918.
__________________
- Tom
"What is freedom? To have the will to be responsible for one's self." - Stirner

Last edited by forkbomb; 1st May 2010 at 05:19 PM. Reason: nevermind.
Reply With Quote
Reply

Tags
network, problem, weird

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
Weird Network problem jawsmith Servers & Networking 5 2nd June 2008 11:28 PM
Very weird network problem! smartkenny Servers & Networking 0 18th January 2008 03:55 AM
weird network problem on fd6 fedora_dude Servers & Networking 1 10th June 2007 04:47 PM


Current GMT-time: 15:42 (Wednesday, 22-05-2013)

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