Date: Tue, 25 Jul 2000 22:41:42 -0500 From: "Tony Johnson" <gjohnson@gs.verio.net> To: "freebsd-questions" <freebsd-questions@FreeBSD.ORG> Subject: Re: A couple of questions re DHCP Message-ID: <00a901bff6b3$6a0b7d60$4a7c01cc@gs.verio.net> References: <397446C7.D2A651E9@home.com>
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> 1. Is there any way to make dhclient renew the lease on my ip manually?
> Every way I try to do this while dhclient is running I get "Address
> already in use". It seems to me there should be a command line option to
> force dhclient to reconfig the interface [e.g.. dhclient --renew].
>
Ditto. I am having this exact trouble and the dhclient man pages doesn't
mention about a lease renewal. My computer boots fine with the exception of
not receiving an ip addy. Running dhclient manually reports "Address
already in use"
----- Original Message -----
From: "Paul Murphy" <pnmurphy@home.com>
To: "freebsd-questions" <freebsd-questions@FreeBSD.ORG>
Sent: Tuesday, July 18, 2000 7:00 AM
Subject: A couple of questions re DHCP
> 1. Is there any way to make dhclient renew the lease on my ip manually?
> Every way I try to do this while dhclient is running I get "Address
> already in use". It seems to me there should be a command line option to
> force dhclient to reconfig the interface [e.g.. dhclient --renew].
>
> 2. Currently my ipfw ruleset contains:
>
> # Allow DHCP
> ${fwcmd} add pass udp from any 68 to any 68 via {oif}
> ${fwcmd} add pass udp from any 67 to any 67 via {oif}
>
> This seems somewhat insecure, how can I _tighten_ up the rule? I'm not
> sure if I can specify the "from" address, should it be my ISP's gateway,
> broadcast, or DHCP server address? I would test each of these using
> tcpdump except for 1. [above]
>
> 3. How can I automagically insert a new ip address in my ipfw ruleset if
> DHCP decides to change it. [e.g. oip="xx.xx.xx.97" changes to
> oip="xx.xx.xx.28"]
>
> --
> Paul Murphy
> http://members.home.com/pnmurphy/
> Home Lat: 43° 33' 29" N, Lon: 79° 39' 03" W
> Work Lat: 43° 25' 30" N, Lon: 79° 42' 34" W
>
>
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