DHCP: keep a lease forever?

Luke Kearney lukek at meibin.net
Wed Jun 16 00:30:34 PDT 2004

On Wed, 16 Jun 2004 00:02:32 -0700 (PDT)
Dave <mudman at metafocus.net> spake thus:

> I got a simple problem.  My local IP addresses keep changing (didn't have
> this problem before until a firmware update), and I don't want them to.
> I got these spammy winboxes that greedily race for to steal my FreeBSD's
> lease.  I'm using a simple 4-port linksys router here.  It's configuration
> is about useless.
> Let's say I wanted to be for argument's sake.  I turn
> everything off (router + computers).  Set my 'starting IP' to 170.  Fire
> the FreeBSD machine up first, let it get 170.  Then I turn the dumb
> winboxes on, and who cares what they have they arn't important.  Like a
> couple of days later, I'll type "ifconfig" and suddely I got 172 on my
> FreeBSD box ( instead of 170.  I could turn DHCP off, but
> then my dhclient takes really really really long to find the network (but
> it does find it, eventually).  How can I setup a more static system here
> without the long wait for dhclient?  Anything in dhclient.conf I can put
> in there?  I want to disable dhcp, but I need to figure out how to
> efficiently get the connection going on, and basically, I havn't owned
> FreeBSD in the pre-dhcp era, so I wouldn't know how.

I would think that the best way to do this would be to add a static IP
to your rc.conf file. It's pretty simple edit rc.conf and change the
line which says 

ifconfig_yourinterface0="inet  netmask"

changing the address to suit your situation. It might then also help if
you alter the DHCP servers address range so that you don't accidentally
get conflicts. 


Luke Kearney <lukek at meibin.net>

More information about the freebsd-questions mailing list