D-Link 504 problem

Hi All,
I am using a D-Link 504 router, which has been working perfectly for
the last eight to ten months. My computer has always been selected as
192.168.0.2. For some reason it has now become 192.168.0.4 which i
can`t work out because i only have three computers on the network. Can
anyone suggest why this would change for no reason.Thanks.


cyberdog

I assume you're talking DHCP right?

Probably happened because your lease on that machine expired then another
machine grabbed it before you turned that one back on. Check your other
machines. There is probably an option somewhere to reserve IPs in DHCP, but
then if you want the 0.2 address for that machine, just make it static!

HTH

cyberdog wrote:
> Hi All,
> I am using a D-Link 504 router, which has been working perfectly for
> the last eight to ten months. My computer has always been selected as
> 192.168.0.2. For some reason it has now become 192.168.0.4 which i
> can`t work out because i only have three computers on the network. Can
> anyone suggest why this would change for no reason.Thanks.

On Sat, 30 Aug 2003 08:34:16 +0100, "George Hewitt"
<(E-Mail Removed)> wrote:

>I assume you're talking DHCP right?
>
>Probably happened because your lease on that machine expired then another
>machine grabbed it before you turned that one back on. Check your other
>machines. There is probably an option somewhere to reserve IPs in DHCP, but
>then if you want the 0.2 address for that machine, just make it static!

Without altering the range of addresses that the 504 allocates
addresses from to exclude 192.168.0.2, that would be a bad move, since
it could lead to two machines attempting to use 192.168.0.2 (one iwth
the address set "statically", the other allocated by DHCp from the
504).
--
)) Derek
(( `no amount of Zen contemplation will ever
C|~~| make you at one with a 3c905B ethernet card.'
`--' --- Alan Cox

Yes sorry, this would obviously involve moving the range of addresses. Also
as I said there might be an option to reserve addresses to a MAC. But I
don't have a 504 so I can't comment.

Derek wrote:
> On Sat, 30 Aug 2003 08:34:16 +0100, "George Hewitt"
> <(E-Mail Removed)> wrote:
>
>> I assume you're talking DHCP right?
>>
>> Probably happened because your lease on that machine expired then
>> another machine grabbed it before you turned that one back on. Check
>> your other machines. There is probably an option somewhere to
>> reserve IPs in DHCP, but then if you want the 0.2 address for that
>> machine, just make it static!
>
> Without altering the range of addresses that the 504 allocates
> addresses from to exclude 192.168.0.2, that would be a bad move, since
> it could lead to two machines attempting to use 192.168.0.2 (one iwth
> the address set "statically", the other allocated by DHCp from the
> 504).

On Sat, 30 Aug 2003 08:42:08 +0100, Derek <(E-Mail Removed)>
wrote:

>The D-Link 504 acts as a DHCP server to the machines on your network,
>and, with the default settings, allocates them IP addresses starting
>from 192.168.0.2 (reserving 192.168.0.1 for itself). The allocation
>is done on a first-come, first-served basis.
>
>Perhaps you switched the machines on your network on in a different
>order today?
Hi,
So if i was to turn all the machines OFF, then turn mine on first what
you are saying is it should be allocated the 0.2 ip. I will give this a
try.Thanks.

Depends. Because leases last for a set period (usually 6-12 hrs). You might
have to release the leases on all machines before doing this

cyberdog wrote:
> On Sat, 30 Aug 2003 08:42:08 +0100, Derek <(E-Mail Removed)>
> wrote:
>
>> The D-Link 504 acts as a DHCP server to the machines on your network,
>> and, with the default settings, allocates them IP addresses starting
>> from 192.168.0.2 (reserving 192.168.0.1 for itself). The allocation
>> is done on a first-come, first-served basis.
>>
>> Perhaps you switched the machines on your network on in a different
>> order today?
> Hi,
> So if i was to turn all the machines OFF, then turn mine on first what
> you are saying is it should be allocated the 0.2 ip. I will give this
> a try.Thanks.

On Sat, 30 Aug 2003 08:42:08 +0100, Derek <(E-Mail Removed)>
wrote:

>Perhaps you switched the machines on your network on in a different
>order today?
Hi,
In an attempt to resolve the problem i disconnected all machines with
the exception of mine. Re booted the router and my computer, but the
router still insists on allocating 04 instead of 02 like it always has
done. The other thing is that if i take a look at the DHCP allocation
table for the router, it has nothing in it. Should it not show all the
computers connected to it ???

On Mon, 1 Sep 2003 18:15:17 +0000 (UTC), cyberdog
<(E-Mail Removed)> wrote:

>On Sat, 30 Aug 2003 08:42:08 +0100, Derek <(E-Mail Removed)>
>wrote:
>
>In an attempt to resolve the problem i disconnected all machines with
>the exception of mine. Re booted the router and my computer, but the
>router still insists on allocating 04 instead of 02 like it always has
>done. The other thing is that if i take a look at the DHCP allocation
>table for the router, it has nothing in it. Should it not show all the
>computers connected to it ???

Yes, it should ...

1) Have you checked that the network connection in your computer is
set to obtain an IP address automatically, and hasn't been set to use
192.168.0.4?

2) So that you can check the setup, here are the appropriate settings
from my 504, taken from the web management pages:
Configuration->Ethernet IP Address,
Configuration->DHCP Configuration on LAN

Configuration
Ethernet IP Address

MAC Address "Unique to your system"

IP Address 192.168.0.1
Subnet Mask 255.255.255.0 (/24)

DHCP Configuration on LAN

Start IP Address 192.168.0.2
End IP Address 192.168.0.254
Netmask 255.255.255.0 (/24)
Default Gateway 192.168.0.1
Leased Time 2 hour
Primary DNS "Unique to your system"
Secondary DNS "Unique to your system"
Primary WINS "Unique to your system"
Secondary WINS "Unique to your system"
Domain Name "Unique to your system"
State enabled

3) Please, also, have a look at Maintenance->Update Firmware, for your
software version.

Maintenance
Update Firmware

Current Firmware Version R2.21.002.05.b2t18uk
ADSL driver Version 1.3.5.03182002.0001

--
)) Derek
(( `no amount of Zen contemplation will ever
C|~~| make you at one with a 3c905B ethernet card.'
`--' --- Alan Cox

On Mon, 01 Sep 2003 20:35:19 +0100, Derek <(E-Mail Removed)>
wrote:

>Yes, it should ...
>
>1) Have you checked that the network connection in your computer is
>set to obtain an IP address automatically, and hasn't been set to use
>192.168.0.4?
>
>2) So that you can check the setup, here are the appropriate settings
>from my 504, taken from the web management pages:
>Configuration->Ethernet IP Address,
>Configuration->DHCP Configuration on LAN
>
>Configuration
> Ethernet IP Address
>
> MAC Address "Unique to your system"
>
> IP Address 192.168.0.1
> Subnet Mask 255.255.255.0 (/24)
>
> DHCP Configuration on LAN
>
> Start IP Address 192.168.0.2
> End IP Address 192.168.0.254
> Netmask 255.255.255.0 (/24)
> Default Gateway 192.168.0.1
> Leased Time 2 hour
> Primary DNS "Unique to your system"
> Secondary DNS "Unique to your system"
> Primary WINS "Unique to your system"
> Secondary WINS "Unique to your system"
> Domain Name "Unique to your system"
> State enabled
>
>3) Please, also, have a look at Maintenance->Update Firmware, for your
>software version.
>
>Maintenance
> Update Firmware
>
> Current Firmware Version R2.21.002.05.b2t18uk
> ADSL driver Version 1.3.5.03182002.0001
Hi Derek,
Just a couple of things that are different.
Leased Time is 72 hours, which should not make any difference.
Current Firmware Version R2.02.b2t8uk which looks very much out of
date.
ADSL driver Version 1.3.5.03182002.0001 is the same.

On Tue, 02 Sep 2003 17:14:29 +0100, Derek <(E-Mail Removed)>
wrote:

>Whilst there is an update for the firmware, Be Advised that there are
>two versions of the 504 router hardware, revisions A and B, which use
>different software. You can tell which revision your 504 is by
>looking at the label on the underside of the router, which will have
>the serial number and a Rev(ision), which strangley will be an "A" or
>a "B".
>
>R2.02 is the previous version for Rev A hardware, and the original
>version for Rev B; it's around a year - 14 months old.
>
>R2.21 is the current version.
>
>The updated firmware can be found at:
>
>For revision A:
><ftp://ftp.dlink.co.uk/pub/broadband/dsl-504%20rev%20a/>
>
>For revision B:
><ftp://ftp.dlink.co.uk/pub/broadband/dsl-504%20rev%20b/>
>
>In both cases, you get a zip file that unpacks to a windows updater
>utility, which, when installed and run, detects the 504 over the
>network, and then uploads the new firmware to it.
>
>This is not something to do while you're stressed, or in a hurry, or
>if you don't feel confident about it.
Hi Derek,
Thanks to you and everyone else for all your help. I am off to download
the revision and read up exactly what is required to update the
firmware. I will let you know how i get on. Thanks again.