[CentOS] Network conections problems
Anthony K
akcentos at anroet.com
Thu Feb 23 06:54:33 UTC 2017
On 23/02/17 08:27, Rommel Rodriguez Toirac wrote:
> The solution was another IP address to this network device and then
> everything work fine.
> Why this happend? How I can erase the link beteewn MAC 00:1D:09:FF:44:4B and IP 192.168.41.4? Where can be stored this link?
> Right now in the network is not assignet the IP address 192.168.41.4 to no one device (printserver, switch, router, workstation or server) and still whe I make arping have the answer:
>
> rommel at p6:~$ arping 192.168.41.4
> ARPING 192.168.41.4 from 192.168.41.6 enp3s0
> Unicast reply from 192.168.41.4 [00:1D:09:FF:44:4B] 0.631ms
> Unicast reply from 192.168.41.4 [00:1D:09:FF:44:4B] 0.623ms
> Unicast reply from 192.168.41.4 [00:1D:09:FF:44:4B] 0.623ms
> Unicast reply from 192.168.41.4 [00:1D:09:FF:44:4B] 0.691ms
> ^CSent 4 probes (1 broadcast(s))
> Received 4 response(s)
One thing to try if you have access to the switch where all the devices
are plugged in:
*$ sudo ping -f 192.168.41.4*
Then watch the switch for a lot of activity on 2 ports - the one you are
plugged into and another. The other busy port will be the one that's
causing you grief. If you have daisy chained switches, then it might
take a little longer to track it down.
Happy hunting - :).
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