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Old 07-25-2012, 01:32 AM   #1
amartlk
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centos error


Hi

i have centos 5.3 installed i not able to ping this server i got following error as, i have 2 network interface on this server , i have no dhcp server i add static ip to both network interface

jul 2 07:00:02 test avahi-daemon[3256]: Leaving mDNS multicast group on interface eth1.IPv6 with address fe80::224:8cff:fe39:d6d1.
Jul 25 07:00:02 test avahi-daemon[3256]: Leaving mDNS multicast group on interface eth1.IPv4 with address 172.16.1.21.
Jul 25 07:00:02 test avahi-daemon[3256]: Leaving mDNS multicast group on interface eth0.IPv6 with address fe80::224:8cff:fe39:d680.
Jul 25 07:00:02 test avahi-daemon[3256]: Leaving mDNS multicast group on interface eth0.IPv4 with address 172.16.1.27.
jul 25 11:03:05 test kernel: sky2 eth0: tx timeout
Jul 25 11:03:05 test kernel: sky2 eth0: disabling interface
Jul 25 11:04:41 test kernel: eth0: duplicate address detected!
Jul 25 11:13:43 test kernel: ICMPv6 NA: someone advertises our address on eth1!
Jul 25 11:13:43 test kernel: ICMPv6 NA: someone advertises our address on eth0!





AMar

Last edited by amartlk; 07-25-2012 at 01:38 AM.
 
Old 07-25-2012, 01:49 AM   #2
acid_kewpie
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why are you trying to put both interfaces on the same subnet? That's not how networking works...
 
Old 07-25-2012, 01:55 AM   #3
amartlk
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Thanks for quick reply

i have 2 interface on server i have given static ip to both interface as i run one localapplication from one interface and other local application from other interface hence have ip on same network
 
Old 07-25-2012, 02:04 AM   #4
acid_kewpie
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Right. Well... don't. use one nic. Or bond them. If you need to IP's you can alias them to have an eth0:1 interface on the same nic.
 
Old 07-25-2012, 02:10 AM   #5
amartlk
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Hi

Thanks for suggestion ,but To avoid network traffic on one interface i have use 2 interface from last 2 years there is no issue from my above logs i.e someone advertises our address on eth1! it means that someone use this same ip on some where
 
Old 07-25-2012, 02:24 AM   #6
acid_kewpie
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why would you want to avoid traffic on one interface??

I can see the duplicate ip message, but it seemed more prudent to raise the fact that you're fundamentally using the network incorrectly.
 
Old 07-25-2012, 02:39 AM   #7
amartlk
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Hi
as i have more than one application in my server and if all user accessing same application at same time then the application is slow for this i use 2 interface , the error log as posted above is due to this like error "someone advertises our address on eth0"
 
Old 07-25-2012, 02:40 AM   #8
acid_kewpie
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well you should be doing NIC bonding then. Anyway... so you clearly have a duplicate IP, so go fix... not sure what else we can say about that.
 
Old 07-25-2012, 02:47 AM   #9
amartlk
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Thanks for reply
once thing i forgot to share that yesterday i use at command to shutdown the server in morning as
at 7am wednesday
at>halt
ctrl+d

is this cause this problem

AMAR
 
Old 07-25-2012, 03:01 AM   #10
acid_kewpie
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no, it's not.
 
Old 07-25-2012, 03:03 AM   #11
amartlk
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i aggree i have to use 2 interface as you explain me , but what cause this error as i explained in my log so that i can troubleshoot main cause
 
Old 07-25-2012, 03:04 AM   #12
acid_kewpie
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well it says something else has the IP, so find what device that is.
 
  


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