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Home » Microsoft » Windows Server » Windows Server General Help » Windows 2003 Server IP address problem !
Windows 2003 Server IP address problem ! [message #163799] Mon, 08 June 2009 09:51 Go to next message
jasonb007  is currently offline jasonb007
Messages: 5
Registered: June 2009
Junior Member
I look after a Windows 2003 server in a school that has an IP address of
172.24.73.x, a subnet of 255.255.255.128 and a DHCP scope with 115 IP
addresses. The router and internet side is supported by a local LEA. We
added more desktops and laptops to the network and it was clear there
wouldn't be enough IP's and asked the LEA to allocate more IP addresses. The
added a IP which was 172.24.74.x and subnet 255.255.255.128 with an
additional 125 IP addresses in the range. They configured the router to do -
well whatever it needs to do ! The problem is, if I configure a PC with an
address from the new range (a 172.24.74.x), I can browse the Internet ok, I
can ping the server and network devices but I cannot access the shared
folders on the server. If I revert back to a 172.24.73.x IP address, I can
access the folders. The LEA advises me that the router is setup correctly
(they won't give me any further details than that as this is their part) and
say it must be something on the server that is wrong. Can anyone advise where
I should start troubleshooting this problem.
Re: Windows 2003 Server IP address problem ! [message #163803 is a reply to message #163799] Mon, 08 June 2009 10:11 Go to previous messageGo to next message
jasonb007  is currently offline jasonb007
Messages: 5
Registered: June 2009
Junior Member
I'm not sure what you mean here. Both ip's are on the 255.255.255.128 subnet.
I can ping a 172.24.73.x device from a 172.24.74.x device and vice versa. The
network has a router (as I say looked after by their LEA) which I understand
has been configured correctly to handle this new IP address range. Hope this
helps.

"Meinolf Weber [MVP-DS]" wrote:

> Hello jasonb007,
>
> You can not connect to the server, because it is on a different subnet. So
> how is the network connection between the two subnets built, VLANs on a switch
> or router connections between them?
>
> Best regards
>
> Meinolf Weber
> Disclaimer: This posting is provided "AS IS" with no warranties, and confers
> no rights.
> ** Please do NOT email, only reply to Newsgroups
> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>
>
> > I look after a Windows 2003 server in a school that has an IP address
> > of 172.24.73.x, a subnet of 255.255.255.128 and a DHCP scope with 115
> > IP addresses. The router and internet side is supported by a local
> > LEA. We added more desktops and laptops to the network and it was
> > clear there wouldn't be enough IP's and asked the LEA to allocate more
> > IP addresses. The added a IP which was 172.24.74.x and subnet
> > 255.255.255.128 with an additional 125 IP addresses in the range.
> > They configured the router to do - well whatever it needs to do ! The
> > problem is, if I configure a PC with an address from the new range (a
> > 172.24.74.x), I can browse the Internet ok, I can ping the server and
> > network devices but I cannot access the shared folders on the server.
> > If I revert back to a 172.24.73.x IP address, I can access the
> > folders. The LEA advises me that the router is setup correctly (they
> > won't give me any further details than that as this is their part) and
> > say it must be something on the server that is wrong. Can anyone
> > advise where I should start troubleshooting this problem.
> >
>
>
>
Re: Windows 2003 Server IP address problem ! [message #163804 is a reply to message #163803] Mon, 08 June 2009 10:16 Go to previous messageGo to next message
meiweb(nospam)  is currently offline meiweb(nospam)  Germany
Messages: 1307
Registered: July 2009
Senior Member
Hello jasonb007,

Please post an unedited ipconfig /all form the server and a problem client
from the new subnet.

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


> I'm not sure what you mean here. Both ip's are on the 255.255.255.128
> subnet. I can ping a 172.24.73.x device from a 172.24.74.x device and
> vice versa. The network has a router (as I say looked after by their
> LEA) which I understand has been configured correctly to handle this
> new IP address range. Hope this helps.
>
> "Meinolf Weber [MVP-DS]" wrote:
>
>> Hello jasonb007,
>>
>> You can not connect to the server, because it is on a different
>> subnet. So how is the network connection between the two subnets
>> built, VLANs on a switch or router connections between them?
>>
>> Best regards
>>
>> Meinolf Weber
>> Disclaimer: This posting is provided "AS IS" with no warranties, and
>> confers
>> no rights.
>> ** Please do NOT email, only reply to Newsgroups
>> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>>> I look after a Windows 2003 server in a school that has an IP
>>> address
>>> of 172.24.73.x, a subnet of 255.255.255.128 and a DHCP scope with
>>> 115
>>> IP addresses. The router and internet side is supported by a local
>>> LEA. We added more desktops and laptops to the network and it was
>>> clear there wouldn't be enough IP's and asked the LEA to allocate
>>> more
>>> IP addresses. The added a IP which was 172.24.74.x and subnet
>>> 255.255.255.128 with an additional 125 IP addresses in the range.
>>> They configured the router to do - well whatever it needs to do !
>>> The
>>> problem is, if I configure a PC with an address from the new range
>>> (a
>>> 172.24.74.x), I can browse the Internet ok, I can ping the server
>>> and
>>> network devices but I cannot access the shared folders on the
>>> server.
>>> If I revert back to a 172.24.73.x IP address, I can access the
>>> folders. The LEA advises me that the router is setup correctly (they
>>> won't give me any further details than that as this is their part)
>>> and
>>> say it must be something on the server that is wrong. Can anyone
>>> advise where I should start troubleshooting this problem.
Re: Windows 2003 Server IP address problem ! [message #163805 is a reply to message #163799] Mon, 08 June 2009 09:55 Go to previous messageGo to next message
meiweb(nospam)  is currently offline meiweb(nospam)  Germany
Messages: 1307
Registered: July 2009
Senior Member
Hello jasonb007,

You can not connect to the server, because it is on a different subnet. So
how is the network connection between the two subnets built, VLANs on a switch
or router connections between them?

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


> I look after a Windows 2003 server in a school that has an IP address
> of 172.24.73.x, a subnet of 255.255.255.128 and a DHCP scope with 115
> IP addresses. The router and internet side is supported by a local
> LEA. We added more desktops and laptops to the network and it was
> clear there wouldn't be enough IP's and asked the LEA to allocate more
> IP addresses. The added a IP which was 172.24.74.x and subnet
> 255.255.255.128 with an additional 125 IP addresses in the range.
> They configured the router to do - well whatever it needs to do ! The
> problem is, if I configure a PC with an address from the new range (a
> 172.24.74.x), I can browse the Internet ok, I can ping the server and
> network devices but I cannot access the shared folders on the server.
> If I revert back to a 172.24.73.x IP address, I can access the
> folders. The LEA advises me that the router is setup correctly (they
> won't give me any further details than that as this is their part) and
> say it must be something on the server that is wrong. Can anyone
> advise where I should start troubleshooting this problem.
>
Re: Windows 2003 Server IP address problem ! [message #163807 is a reply to message #163799] Mon, 08 June 2009 10:24 Go to previous messageGo to next message
jasonb007  is currently offline jasonb007
Messages: 5
Registered: June 2009
Junior Member
The server is at a customer site so I will post an ipconfig /all when I have
been to that site which will be tomorrow.

With regards to changing the IP, this cannot be done as apparantely another
school on the same network uses the IP addresses that would be generated from
increasing the scope.

"Lanwench [MVP - Exchange]" wrote:

> jasonb007 <jasonb007@discussions.microsoft.com> wrote:
> > I look after a Windows 2003 server in a school that has an IP address
> > of 172.24.73.x, a subnet of 255.255.255.128 and a DHCP scope with 115
> > IP addresses. The router and internet side is supported by a local
> > LEA. We added more desktops and laptops to the network and it was
> > clear there wouldn't be enough IP's and asked the LEA to allocate
> > more IP addresses. The added a IP which was 172.24.74.x and subnet
> > 255.255.255.128 with an additional 125 IP addresses in the range.
> > They configured the router to do - well whatever it needs to do ! The
> > problem is, if I configure a PC with an address from the new range (a
> > 172.24.74.x), I can browse the Internet ok, I can ping the server and
> > network devices but I cannot access the shared folders on the server.
> > If I revert back to a 172.24.73.x IP address, I can access the
> > folders. The LEA advises me that the router is setup correctly (they
> > won't give me any further details than that as this is their part)
> > and say it must be something on the server that is wrong. Can anyone
> > advise where I should start troubleshooting this problem.
>
> In addition to Meinolf's reply, why don't they simply change the IP address
> allocation on the LAN side to use a 24-bit subnet mask (255.255.255.250) so
> you get 254 addresses on the 172.24.73.0 network? This shouldn't be that big
> a deal if you use DHCP (and your server should be doing DHCP & not the
> router, esp. if you use Active Directory).
>
>
>
Re: Windows 2003 Server IP address problem ! [message #163809 is a reply to message #163799] Mon, 08 June 2009 10:04 Go to previous messageGo to next message
lanwench  is currently offline lanwench  United States
Messages: 1684
Registered: July 2009
Senior Member
jasonb007 <jasonb007@discussions.microsoft.com> wrote:
> I look after a Windows 2003 server in a school that has an IP address
> of 172.24.73.x, a subnet of 255.255.255.128 and a DHCP scope with 115
> IP addresses. The router and internet side is supported by a local
> LEA. We added more desktops and laptops to the network and it was
> clear there wouldn't be enough IP's and asked the LEA to allocate
> more IP addresses. The added a IP which was 172.24.74.x and subnet
> 255.255.255.128 with an additional 125 IP addresses in the range.
> They configured the router to do - well whatever it needs to do ! The
> problem is, if I configure a PC with an address from the new range (a
> 172.24.74.x), I can browse the Internet ok, I can ping the server and
> network devices but I cannot access the shared folders on the server.
> If I revert back to a 172.24.73.x IP address, I can access the
> folders. The LEA advises me that the router is setup correctly (they
> won't give me any further details than that as this is their part)
> and say it must be something on the server that is wrong. Can anyone
> advise where I should start troubleshooting this problem.

In addition to Meinolf's reply, why don't they simply change the IP address
allocation on the LAN side to use a 24-bit subnet mask (255.255.255.250) so
you get 254 addresses on the 172.24.73.0 network? This shouldn't be that big
a deal if you use DHCP (and your server should be doing DHCP & not the
router, esp. if you use Active Directory).
Re: Windows 2003 Server IP address problem ! [message #163838 is a reply to message #163799] Mon, 08 June 2009 19:42 Go to previous messageGo to next message
Kevin Longley  is currently offline Kevin Longley  United States
Messages: 26
Registered: July 2009
Junior Member
Try accessing the share by using the server's ip address\share name or its
fqdn\share name and advise results.

"jasonb007" <jasonb007@discussions.microsoft.com> wrote in message
news:F76148E6-96C4-4E83-B96D-0ECDBC91E38C@microsoft.com...
>I look after a Windows 2003 server in a school that has an IP address of
> 172.24.73.x, a subnet of 255.255.255.128 and a DHCP scope with 115 IP
> addresses. The router and internet side is supported by a local LEA. We
> added more desktops and laptops to the network and it was clear there
> wouldn't be enough IP's and asked the LEA to allocate more IP addresses.
> The
> added a IP which was 172.24.74.x and subnet 255.255.255.128 with an
> additional 125 IP addresses in the range. They configured the router to
> do -
> well whatever it needs to do ! The problem is, if I configure a PC with an
> address from the new range (a 172.24.74.x), I can browse the Internet ok,
> I
> can ping the server and network devices but I cannot access the shared
> folders on the server. If I revert back to a 172.24.73.x IP address, I can
> access the folders. The LEA advises me that the router is setup correctly
> (they won't give me any further details than that as this is their part)
> and
> say it must be something on the server that is wrong. Can anyone advise
> where
> I should start troubleshooting this problem.
Re: Windows 2003 Server IP address problem ! [message #163839 is a reply to message #163807] Mon, 08 June 2009 19:58 Go to previous messageGo to next message
lanwench  is currently offline lanwench  United States
Messages: 1684
Registered: July 2009
Senior Member
jasonb007 <jasonb007@discussions.microsoft.com> wrote:
> The server is at a customer site so I will post an ipconfig /all when
> I have been to that site which will be tomorrow.
>
> With regards to changing the IP, this cannot be done as apparantely
> another school on the same network uses the IP addresses that would
> be generated from increasing the scope.

Behind the same exact router and on the same switches as you? Meaning,
you're on the same LAN as they are?

Then they will probably need to put in a switch that supports VLANs.


>
> "Lanwench [MVP - Exchange]" wrote:
>
>> jasonb007 <jasonb007@discussions.microsoft.com> wrote:
>>> I look after a Windows 2003 server in a school that has an IP
>>> address of 172.24.73.x, a subnet of 255.255.255.128 and a DHCP
>>> scope with 115 IP addresses. The router and internet side is
>>> supported by a local LEA. We added more desktops and laptops to the
>>> network and it was clear there wouldn't be enough IP's and asked
>>> the LEA to allocate more IP addresses. The added a IP which was
>>> 172.24.74.x and subnet 255.255.255.128 with an additional 125 IP
>>> addresses in the range. They configured the router to do - well
>>> whatever it needs to do ! The problem is, if I configure a PC with
>>> an address from the new range (a 172.24.74.x), I can browse the
>>> Internet ok, I can ping the server and network devices but I cannot
>>> access the shared folders on the server. If I revert back to a
>>> 172.24.73.x IP address, I can access the folders. The LEA advises
>>> me that the router is setup correctly (they won't give me any
>>> further details than that as this is their part) and say it must be
>>> something on the server that is wrong. Can anyone advise where I
>>> should start troubleshooting this problem.
>>
>> In addition to Meinolf's reply, why don't they simply change the IP
>> address allocation on the LAN side to use a 24-bit subnet mask
>> (255.255.255.250) so you get 254 addresses on the 172.24.73.0
>> network? This shouldn't be that big a deal if you use DHCP (and your
>> server should be doing DHCP & not the router, esp. if you use Active
>> Directory).
Re: Windows 2003 Server IP address problem ! [message #163990 is a reply to message #163838] Thu, 11 June 2009 06:15 Go to previous messageGo to next message
jasonb007  is currently offline jasonb007
Messages: 5
Registered: June 2009
Junior Member
Hi, below are ipconfig /all details from the server and a workstation

Windows IP Configuration (SERVER)

Host Name . . . . . . . . . . . . : server1
Primary Dns Suffix . . . . . . . : domain.local
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

DNS Suffix Search List. . . . . . : domain.local
liverpool.sch.uk

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : liverpool.sch.uk
Description . . . . . . . . . . . : HP NC7781 Gigabit Server Adapter
Physical Address. . . . . . . . . : 00-1C-C4-5F-1F-E8
DHCP Enabled. . . . . . . . . . . : No

IP Address. . . . . . . . . . . . : 172.24.73.133
Subnet Mask . . . . . . . . . . . : 255.255.255.128
Default Gateway . . . . . . . . . : 172.24.73.129
DNS Servers . . . . . . . . . . . : 172.16.10.14
172.24.73.133

Windows IP Configuration (Workstation)

Host Name . . . . . . . . . . . . : StaffRoom
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : liverpool.sch.uk

Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . : liverpool.sch.uk
Description . . . . . . . . . . . : NVIDIA nForce Networking Controller
Physical Address. . . . . . . . . : 00-22-64-BC-AF-88

Dhcp Enabled. . . . . . . . . . . : No

IP Address. . . . . . . . . . . . : 172.24.74.10
Subnet Mask . . . . . . . . . . . : 255.255.255.128
Default Gateway . . . . . . . . . : 172.24.73.129
DNS Servers . . . . . . . . . . . : 172.16.10.14



"Kevin Longley" wrote:

> Try accessing the share by using the server's ip address\share name or its
> fqdn\share name and advise results.
>
> "jasonb007" <jasonb007@discussions.microsoft.com> wrote in message
> news:F76148E6-96C4-4E83-B96D-0ECDBC91E38C@microsoft.com...
> >I look after a Windows 2003 server in a school that has an IP address of
> > 172.24.73.x, a subnet of 255.255.255.128 and a DHCP scope with 115 IP
> > addresses. The router and internet side is supported by a local LEA. We
> > added more desktops and laptops to the network and it was clear there
> > wouldn't be enough IP's and asked the LEA to allocate more IP addresses.
> > The
> > added a IP which was 172.24.74.x and subnet 255.255.255.128 with an
> > additional 125 IP addresses in the range. They configured the router to
> > do -
> > well whatever it needs to do ! The problem is, if I configure a PC with an
> > address from the new range (a 172.24.74.x), I can browse the Internet ok,
> > I
> > can ping the server and network devices but I cannot access the shared
> > folders on the server. If I revert back to a 172.24.73.x IP address, I can
> > access the folders. The LEA advises me that the router is setup correctly
> > (they won't give me any further details than that as this is their part)
> > and
> > say it must be something on the server that is wrong. Can anyone advise
> > where
> > I should start troubleshooting this problem.
>
>
Re: Windows 2003 Server IP address problem ! [message #163993 is a reply to message #163990] Thu, 11 June 2009 07:52 Go to previous message
anthony  is currently offline anthony  United Kingdom
Messages: 288
Registered: July 2009
Senior Member
Jason,
Can you ask the LEA what the subnet mask is on the inside interface of the
router? Has it changed or is it the same?
It sounds as though you are supposed to implement a new VLAN on your
switches for this address range.
Anthony,
http://www.airdesk.com


"jasonb007" <jasonb007@discussions.microsoft.com> wrote in message
news:CF2F71FD-07DE-4946-9423-DA9119DC493B@microsoft.com...
> Hi, below are ipconfig /all details from the server and a workstation
>
> Windows IP Configuration (SERVER)
>
> Host Name . . . . . . . . . . . . : server1
> Primary Dns Suffix . . . . . . . : domain.local
> Node Type . . . . . . . . . . . . : Unknown
> IP Routing Enabled. . . . . . . . : No
> WINS Proxy Enabled. . . . . . . . : No
>
> DNS Suffix Search List. . . . . . : domain.local
> liverpool.sch.uk
>
> Ethernet adapter Local Area Connection:
>
> Connection-specific DNS Suffix . : liverpool.sch.uk
> Description . . . . . . . . . . . : HP NC7781 Gigabit Server Adapter
> Physical Address. . . . . . . . . : 00-1C-C4-5F-1F-E8
> DHCP Enabled. . . . . . . . . . . : No
>
> IP Address. . . . . . . . . . . . : 172.24.73.133
> Subnet Mask . . . . . . . . . . . : 255.255.255.128
> Default Gateway . . . . . . . . . : 172.24.73.129
> DNS Servers . . . . . . . . . . . : 172.16.10.14
> 172.24.73.133
>
> Windows IP Configuration (Workstation)
>
> Host Name . . . . . . . . . . . . : StaffRoom
> Primary Dns Suffix . . . . . . . :
> Node Type . . . . . . . . . . . . : Unknown
> IP Routing Enabled. . . . . . . . : No
> WINS Proxy Enabled. . . . . . . . : No
> DNS Suffix Search List. . . . . . : liverpool.sch.uk
>
> Ethernet adapter Local Area Connection:
> Connection-specific DNS Suffix . : liverpool.sch.uk
> Description . . . . . . . . . . . : NVIDIA nForce Networking Controller
> Physical Address. . . . . . . . . : 00-22-64-BC-AF-88
>
> Dhcp Enabled. . . . . . . . . . . : No
>
> IP Address. . . . . . . . . . . . : 172.24.74.10
> Subnet Mask . . . . . . . . . . . : 255.255.255.128
> Default Gateway . . . . . . . . . : 172.24.73.129
> DNS Servers . . . . . . . . . . . : 172.16.10.14
>
>
>
> "Kevin Longley" wrote:
>
>> Try accessing the share by using the server's ip address\share name or
>> its
>> fqdn\share name and advise results.
>>
>> "jasonb007" <jasonb007@discussions.microsoft.com> wrote in message
>> news:F76148E6-96C4-4E83-B96D-0ECDBC91E38C@microsoft.com...
>> >I look after a Windows 2003 server in a school that has an IP address of
>> > 172.24.73.x, a subnet of 255.255.255.128 and a DHCP scope with 115 IP
>> > addresses. The router and internet side is supported by a local LEA.
>> > We
>> > added more desktops and laptops to the network and it was clear there
>> > wouldn't be enough IP's and asked the LEA to allocate more IP
>> > addresses.
>> > The
>> > added a IP which was 172.24.74.x and subnet 255.255.255.128 with an
>> > additional 125 IP addresses in the range. They configured the router
>> > to
>> > do -
>> > well whatever it needs to do ! The problem is, if I configure a PC with
>> > an
>> > address from the new range (a 172.24.74.x), I can browse the Internet
>> > ok,
>> > I
>> > can ping the server and network devices but I cannot access the shared
>> > folders on the server. If I revert back to a 172.24.73.x IP address, I
>> > can
>> > access the folders. The LEA advises me that the router is setup
>> > correctly
>> > (they won't give me any further details than that as this is their
>> > part)
>> > and
>> > say it must be something on the server that is wrong. Can anyone advise
>> > where
>> > I should start troubleshooting this problem.
>>
>>
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