[CentOS] question on DHCP

Wed Apr 4 18:23:21 UTC 2012
Paul (Crunch) <numbercruncher245 at gmail.com>

On 04/04/2012 12:18 PM, Jerry Geis wrote:
> If a machine with centos 6.2 is set for DHCP and it looses power and the
> switch
> looses power for a long time. lets say a day. so the switch really goes
> off even with batter backup.
> Now power comes on, the machine asks for a DHCP address before the
> switch is read
> as its not back up yet. there is no response and the machine does not
> get an address.
> Finally the switch comes back up , the machine has already posted that it
> Network got an error as there was no DHCP server.
> Does the machine ever ask again???? or do I have to manually do a server
> network restart
> or reboot the machine again.
> It seems to never ask again.
> jerry
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Hi Jerry,

I think what you are looking for can be found with:   $man dhclient.conf

There is a retry option that specifically sets the delay between 
successive dhcp client broadcasts when a dhcp server can't be found.