Re: Anyone using Arris Cornerstone 1000?

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Nevermind, discovered man dhcp-eval :-)

For archival - relevant part of dhcpd.conf

class "Cable-Modems" {
        match if substring (hardware, 1, 3) = 00:10:95;
}

shared-network all {
subnet 1.2.3.64 netmask 255.255.255.192 {  #CPE Network
        pool {
           deny members of "Cable-Modems";
           range 1.2.3.66 1.2.3.126;
           }
        default-lease-time 14400; # 4 hour lease on non-static IP's
        max-lease-time 28800; # 8 hour max lease
        filename "noaccess.cm";
        option subnet-mask 255.255.255.192;
        option broadcast-address 1.2.3.127;
        option routers 1.2.3.65;
}       # CPE Network



On Wed, 2003-01-29 at 09:51, Justin Ellison wrote:
> Thanks for the tip.  I was running the old 2.x versions, so this server
> got a quick upgrade.  I got the subclass thing working, and all is
> good.  One quick question though:
> 
> Most (95%) of our customers lease our cable modems from us.  We use RCA
> modems entirely.  I can guarantee that if it's an RCA modem of ours, it
> will have a MAC starting 00:10:95.  It would save a lot of work if I
> could make a wildcard statement matching all modems.  I tried the
> manpage, and a couple of guesses, but the daemon barfs on hitting the
> wildcard statement.
> 
> Any way to do that?
> 
> Justin
> 
> On Tue, 2003-01-28 at 17:09, Greg wrote:
> >    *** From dhcp-server -- To unsubscribe, see the end of this message. ***
> > 
> > 
> > > Basically, I know the problem is in the CMTS.  In every other CMTS,
> > > there is a giaddr setting that you can manipulate.  I haven't found it
> > > in this one.  I either need to find that, or come up with a hack to the
> > > dhcp server....
> > okay heres how you do it (and this keeps ppl from running rogue on your
> > network as well.
> > 
> > setup a subclass.  specify in the dhcpd.conf file on a line like this:
> > subclass "name" 1:XX:XX:XX:XX:XX:XX;
> > 
> > where the X's are the MAC addy of the modem.
> > 
> > In the modem pool specify to allow only from that subclass and in the
> > other pool specify to deny that class.
> > 
> > The thing that will hapen is that all modems not in your system will get
> > a real world ip.
> > 
> > have fun ;)
> >  
> > -- 
> > Greg <gsml@xxxxxxxxxxxxxxx>
> > 
> > 
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