[Maintain] Static IP range works but after split to create new dynamic range, it wont vend dynamic IPs

Fri Jan 23 20:56:18 UTC 2009

Hmm.... where is the pool statement?  I expected to see something like
this:

subnet 128.193.212.0 netmask 255.255.254.0 {
	option subnet-mask 255.255.254.0;
	option routers 128.193.212.1;
	pool {
		failover peer "dhcp";
		deny dynamic bootp clients;
		allow members of
"zone.foo:128.193.213.1:128.193.213.244";
		range 128.193.213.1 128.193.213.244;
	}
}

If there is no pool statement, it won't hand out any dynamic leases.

Also, what type of dynamic range do you want?  Do you want to allow any
host, or only hosts registered in Maintain, or only hosts assigned to
that dynamic range?  In the range configuration page in Maintain, you
have the following options (under "Allow"):

Hosts in this range  - only hosts assigned to the dynamic range
Any Host - any host  ( I think the global deny will trump this)
Any registered host - any host in your Maintain
Any unregistered host - any host not in your Maintain (explicitly denies
known hosts)

Lastly, what do the dhcp logs show when the client does a discover?

________________
Kirsten Petersen
Network Services * Oregon State University
http://oregonstate.edu/net * irc.oregonstate.edu #osu-is
"We may have all come on different ships, but we're all in the same boat
now." 
 -Rev. Dr. Martin Luther King, Jr.

-----Original Message-----
From: Nielson, Adam (Adecco Engineering & Technical)
[mailto:adam.nielson at hp.com] 
Sent: Friday, January 23, 2009 10:36 AM
To: Petersen, Kirsten J - NET; Purdy, Kevin - NET
Cc: maintain at lists.osuosl.org
Subject: RE: [Maintain] Static IP range works but after split to create
new dynamic range, it wont vend dynamic IPs

# log-facility local2;
 authoritative;
# allow bootp;
 deny unknown-clients;
# default-lease-time 32400; # 9 hrs
# max-lease-time 360000; # 100 hrs
# use-host-decl-names false;
# get-lease-hostnames true;
ddns-update-style interim;
filename "pxelinux.0";
# etc...

# global DHCP options
# end global options

# class defs for dynamic ranges
# LAN 1.1 Test for x.x.170.1 to x.x.170.100
class "LAN 1.1 Test:x.x.170.1:x.x.170.100" {
        match hardware;
}
subnet x.x.168.0 netmask 255.255.252.0 {
        option domain-name-servers x.x.170.219;
        option routers x.x.168.1;
        option domain-name "blah.com";
        default-lease-time 99999999999999999999999999; 

There is other classes that are static, and work fine.

Right now I had to get the dynamic 100 Ips up so I just setup a dhcp
server on another linux box.

The concerns I have is why it wont vend dynamic.  Is it the deny
unknown-clients line?

-----Original Message-----
From: Petersen, Kirsten J - NET
[mailto:Kirsten.Petersen at oregonstate.edu] 
Sent: Friday, January 23, 2009 10:43 AM
To: Nielson, Adam (Adecco Engineering & Technical); Purdy, Kevin - NET
Cc: maintain at lists.osuosl.org
Subject: RE: [Maintain] Static IP range works but after split to create
new dynamic range, it wont vend dynamic IPs

Adam,

Can you share the snippet of the dhcp config that Maintain is
generating, as it pertains to these ranges?

________________
Kirsten Petersen
Network Services * Oregon State University http://oregonstate.edu/net *
irc.oregonstate.edu #osu-is "We may have all come on different ships,
but we're all in the same boat now." 
 -Rev. Dr. Martin Luther King, Jr.

-----Original Message-----
From: maintain-bounces at osuosl.org [mailto:maintain-bounces at osuosl.org]
On Behalf Of Nielson, Adam (Adecco Engineering & Technical)
Sent: Friday, January 23, 2009 9:35 AM
To: Purdy, Kevin - NET
Cc: maintain at lists.osuosl.org
Subject: Re: [Maintain] Static IP range works but after split to create
new dynamic range, it wont vend dynamic IPs

Looks like 3.1.0 

-----Original Message-----
From: Kevin Purdy [mailto:purdyk at net.oregonstate.edu]
Sent: Friday, January 23, 2009 10:39 AM
To: Nielson, Adam (Adecco Engineering & Technical)
Cc: maintain at lists.osuosl.org
Subject: Re: [Maintain] Static IP range works but after split to create
new dynamic range, it wont vend dynamic IPs

Adam,
	What version of maintain are you running?

Nielson, Adam (Adecco Engineering & Technical) wrote:
> We have had maintain up and running for over a year.  In our unique
R&D environment we have no dynamic IPs.  We created our IP block:
10.0.1.0 to 10.0.4.255.
> 
>  
> 
> Have the proper subnet, had one workgroup created, had all IPs in the
range in one range, had one domain, no VLAN, default DHCP options, and
our two name servers.
> 
>  
> 
> So, we would create a new host in the static IP range as a static
reservation.  No one could obviously get a dynamic IP without a
reservation, and everything worked fine.
> 
>  
> 
> Now we are wanting to take a small segment and make it dynamic.  I
have split the range 3 times, taken the middle range of 100 IPs and made
it dynamic.  I have left all other options the same such as its in the
same domain, same workgroup, etc.
> 
>  
> 
> When i try to grab a dynamic IP, nothing is vended.  I am not sure
what is wrong or what could be happening.
> 
>  
> 
> Any advice or suggestions is greatly appreciated!
> 
>  
> 
> Thank you,
> 
> 
> Adam Nielson
> Adecco Engineering and Technical
> LTL Server/Systems Administrator
> Telnet # (208) 396-5669
> cell # (208) 283-4713
> _______________________________________________
> maintain mailing list
> maintain at osuosl.org
> http://lists.osuosl.org/mailman/listinfo/maintain

--
Kevin Purdy * Security Student
Network Engineering * Oregon State University
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