Re: Routers lose the ip lease and must be reset?

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Thanks for your respons. I know that this is hard because you cannot actually 
look at the network setup we have.

Maybe i could be a little more clearer.

First of all i did not set this thing up but a collegue did. We have a couple 
of IP ranges we use.
Let say we have these ranges:

xxx.xxx.144/23
yyy.yyy.186/23

This means that we have: xxx.xxx.144.1-254 netmask 255.255.255.0
                         xxx.xxx.145.1-254 which we have subnetted
                         yyy.yyy.186.1-254 netmask 255.255.255.0
                         yyy.yyy.187.1-254 netmask 255.255.255.0

A part of the 145 range is used for our radius, for our own server and for the 
dhcp customers.
The 186 is used for the radius and the 187 for the dhcp.

The 144 range is working fine with no troubles at all.
The 145 part is working shit. The subnetting could the problem.

I am sure that the firewalls are not blocking the requests.

With this information is it possible for someone to tell me how to configure 
our bind, so that everything is working smoothly.

Maybe you already noticed, but i don't know too much about networks yet. I am 
learning.

Please let me know.

Greetz,

Mike 

On Thu, Jan 16, 2003 at 07:56:28AM -0600, Paine, Thomas Asa wrote:
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> 
> 
>       Yes, I was also going to suggest that you make sure your scope
> configuration / router interface(s) have the correct network masks.
> Also, any chance of any access lists on the router interfaces that could
> be hindering you?  The only weird thing to me is that even if it
> couldn't renew, it should go back and do a dhcp discover as a last
> resort, which would again use a broadcast, no?
> 
> Thanks,
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Thomas Paine (paineta@xxxxxxxx)
> University of Wisconsin - Eau Claire
> Computing & Networking Services
> Technical Services
> 105 Garfield Ave, Schofield Hall 21A
> Eau Claire, WI. 54702
> Phone: (715) 836-3078 Fax: (715) 836-5936
> 
> 
> 
> -----Original Message-----
> From: Glenn Satchell [mailto:Glenn.Satchell@xxxxxxxxxxx]=20
> Sent: Thursday, January 16, 2003 4:58 AM
> To: dhcp-server@xxxxxxx
> Subject: Re: Routers lose the ip lease and must be reset?
> 
> 
>    *** From dhcp-server -- To unsubscribe, see the end of this message.
> ***
> 
> 
> The initial request is done via a broadcast from the client, which is
> forwarded on by the relay agent on the router. However, when the client
> attempts to renew the lease it does a direct connection to the dhcp
> server, bypasing the relay agent. Perhaps there is a problem with this,
> like routing not set up properly on these clients or on the dhcp server.
> To test, can you ping the client from the dhcp server, and vice versa?
> Otherwise, how about posting your dhcpd.conf and a brief description of
> the network topology?
> 
> regards,
> -glenn
> 
> >=20
> > Yes, that is what happens and it happens only with those....very=20
> > weird.
> >=20
> > Any ideas.
> >=20
> > Thanks
> >=20
> > On Wed, Jan 15, 2003 at 08:04:49AM -0600, Paine, Thomas Asa wrote:
> > >    *** From dhcp-server -- To unsubscribe, see the end of this=20
> > > message. ***
> > >=20
> > >=20
> > >   So the ones in the x.x.x.x/25 networks initially get their=20
> > > addresses but never successfully renew?
> > >=20
> > > Thanks,
> > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > > Thomas Paine (paineta@xxxxxxxx)
> > > University of Wisconsin - Eau Claire
> > > Computing & Networking Services
> > > Technical Services
> > > 105 Garfield Ave, Schofield Hall 21A
> > > Eau Claire, WI. 54702
> > > Phone: (715) 836-3078 Fax: (715) 836-5936
> > >=20
> > >=20
> > >=20
> > > -----Original Message-----
> > > From: Mike [mailto:mike@xxxxxxxxxxxx]=3D20
> > > Sent: Wednesday, January 15, 2003 8:00 AM
> > > To: dhcp-server@xxxxxxx
> > > Subject: Routers lose the ip lease and must be reset?
> > >=20
> > >=20
> > >    *** From dhcp-server -- To unsubscribe, see the end of this=20
> > > message.
> > > ***
> > >=20
> > >=20
> > > Dear dhcp masters,
> > >=20
> > > I have this strange problem. I work for an ISP and we supply dsl=20
> > > line to our customers.
> > >=20
> > > We give out static ip adresses to them and our dhcp server has a=20
> > > default an max lease time of 1 week. But there are a few customers=20
> > > with different adsl routers that lose there connection unregularly=20
> > > and have to reset the router manually. Other customers don't have=20
> > > this problem and there modem's or routers do a automatic renew.
> > >=20
> > > Does anyone have a clue?
> > >=20
> > > By the way..we use subnetteing and the problems seem to exist in one
> 
> > > specific subnet where the netmask is: 255.255.255.128
> > >=20
> > > Thanks in advance for your help.
> > >=20
> > > Michael=3D20
> 
> 
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