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

why are you trying to put both interfaces on the same subnet? That's not how networking works...

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

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.

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

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.

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"

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.

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

no, it's not.

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

well it says something else has the IP, so find what device that is.