Re: DHCP Fails on Authorized Server
- From: v-terliu@xxxxxxxxxxxxxxxxxxxx (Terence Liu [MSFT])
- Date: Fri, 22 Aug 2008 05:05:47 GMT
Hello John,
Thank you for posting here. Let's also thank Steve, Cris and Jim for the
input.
According to your description, I understand that your DHCP on SBS often
shutdown. If I have misunderstood the problem, please don't hesitate to let
me know.
Based on my research, I suggest we try the following steps to see if we can
resolve this issue:
The DHCP shutdowns may because the SBS detects another DHCP in network. I
think the biggest question is that your network topology is not properly.
You do not need 2 Internet connections. This may your network complex. I
suggest you change your network topology as either one of the following
scenarios. Then, run the CEICW to configure the network.
Scenario 1: One NIC on SBS. All Internet outbound and inbound will go
through your router.
Network topology:
{Internet}=={router}=={switch}=={SBS and clients}
1. Unplug the Internet from SBS external NIC.
2. Disable external NIC on SBS.
3. Go through the follow KB and rerun CEICW carefully.
How to configure Internet access in Windows Small Business Server 2003
http://support.microsoft.com/kb/825763
One network adapter - manual router connection to broadband
a. On the Connection Type page, click Broadband, and then click Next.
b. On the Broadband Connection page, under My server uses, click A local
router device with an IP address, and then click Next.
c. On the Router Connection page, next to Preferred DNS server and next to
Alternate DNS server, type the IP addresses that are provided by your ISP.
In the Local IP address of router box, type the IP address of the router
that the server uses to connect to the router.
d. Click to select the My server uses a single network connection for both
Internet access and the local network check box, and then click Next.
e. A message may appear that warns that the firewall that is provided
cannot be configured. You are offered a chance to view information about
configuration settings for an existing firewall device.
f. On the Network Connection page, click Server Local Area Connection
under the Connection Name.
g. Click Next.
h. Complete the Configure E-mail and Internet Connection Wizard.
4. You need to forward some TCP ports from router to SBS:
25 (SMTP)
443 (OWA, OMA, RPC over HTTP)
444 (companyweb)
1723 (VPN)
4125 (RWW)
Note: You may need to change the public DNS A record and MX record.
Scenario 2: Two NICs on SBS. All Internet outbound and inbound will go
through your SBS.
Network topology:
{Internet}=={router}=={SBS}=={switch}=={clients}
1. Unplug the clients from router.
2. Plug SBS external NIC to router.
3. Go through the follow KB and rerun CEICW carefully.
How to configure Internet access in Windows Small Business Server 2003
http://support.microsoft.com/kb/825763
Two network adapters - manual router connection to broadband
a. On the SBS 2003 Server open the Server Management console. Go to
Standard Management\To Do List.
b. Click the "Connect to the Internet" link.
c. On the Connection Type page, click Broadband, and then click Next.
d. On the Broadband Connection page, under My server uses, click A local
router device with an IP address, and then click Next.
e. On the Router Connection page, next to Preferred DNS server and
Alternate DNS server, type the IP addresses that are provided by your ISP.
In the Local IP address of router box, type the IP address of the router
that the server uses to connect to the router.
f. Click to clear the My server uses a single network connection for both
Internet access and the local network check box, and then click Next.
g. On the Network Connection, You must enable and configure the network
connection to your ISP page, under the Connection Name, click Network
Connection.
h. If your router provides DHCP, click Obtain an IP address automatically
(use DHCP). If your router does not provide DHCP, click Use the following
IP address, and then type the IP address and the subnet mask in accordance
with the router settings. The default gateway is the IP address of the
router.
i. Click Next.
The network connection is now enabled.
j. On the Network Connection, You must click the connection for your ISP
and local network page, click Network Connection under the ISP network
connection.
k. Under the Local network connection, click Server Local Area Connection,
and then click Next.
l. Complete the Configure E-mail and Internet Connection Wizard.
4. You need to forward some TCP ports from router to SBS:
25 (SMTP)
443 (OWA, OMA, RPC over HTTP)
444 (companyweb)
1723 (VPN)
4125 (RWW)
Note: You may need to change the public DNS A record and MX record.
After you change the network topology, I think the DHCP will not shutdown.
If we cannot resolve the issue after we perform the steps above, please
help me collect some information for further investigation:
1. Let me know your network topology picture.
2. Gather MPS network report on SBS:
a. Download MPSrepot_network from
http://download.microsoft.com/download/b/b/1/bb139fcb-4aac-4fe5-a579-30b0bd9
15706/MPSRPT_NETWORK.EXE
b. Run MPSRPT_NETWORK.exe.
c. The tool will automatically collect the information. This procedure will
take 10~15 minutes.
d. Open Windows Explorer, navigate to the folder:
%SystemRoot%\MPSReports\Network\Reports\Cab\
e. Send the .cab file directly to me at v-terliu@xxxxxxxxxxxxx
I hope these steps will give you some help.
Thanks and have a nice day!
Best regards,
Terence Liu (MSFT)
Microsoft CSS Online Newsgroup Support
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--------------------
From: talkinggoat <johnmclaren_99@xxxxxxxxx><eb081f4e-510e-430b-97cf-f9828218a221@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Newsgroups: microsoft.public.windows.server.sbs
Subject: Re: DHCP Fails on Authorized Server
Date: Thu, 21 Aug 2008 17:04:13 -0700 (PDT)
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Xref: TK2MSFTNGHUB02.phx.gbl microsoft.public.windows.server.sbs:120304<johnmclaren...@xxxxxxxxx> wrote in message
X-Tomcat-NG: microsoft.public.windows.server.sbs
On Aug 21, 4:25 pm, "Cris Hanna [SBS - MVP]"
<crisnospamha...@xxxxxxxxxxxxxxxxxxxxx> wrote:
So you have another DHCP server in your "environment"? Different Subnet.
Is it connected to the same internet connection your SBS server is?
You say you have to nics in the SBS server but it's not doing nat? how
could it not be?
--
Cris Hanna [SBS - MVP]
------------------------------------
MVPs do not work for Microsoft
Please do not submit questions directly to me."talkinggoat"
have
news:d4da77ad-5963-410e-98be-15b2600438a3@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On Aug 21, 12:00 pm, "SteveB" <newsgr...@xxxxxxxxxx> wrote:
To be clear this is a SBS 2003 box or "normal" Windows 2003? Does it
DHCP1
or 2 NICs? Is there an event log entry indicating its seeing another
butnews:e1703747-10e3-462b-89ee-810f3c7e2ece@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxserver?
"talkinggoat" <johnmclaren...@xxxxxxxxx> wrote in message
I've got a 2003 server that's connected directly to the internet.
Apparently it's seeing the dhcp server of someone else, despite the
fact that I've told it to only authorize the local ip address of
192.168.15.1, only. I've tried uninstalling DHCP and reinstalling,
Depends on what you define as environment. I would say no, because itit did nothing. It doesn't want to accept the command to listen on
192.168.15.1, only. Any ideas?
It's sbs 2003. There are 2 nics, but it's not using RRAS or NAT. It is
seeing another DHCP Server, but the server is on an entire other
subnet. 10.x.x.x. The two addresses on the box are 192.x.x.x, and
70.x.x.x. Even though I've authorized it for 192.x.x.x, it still sees
the 10.x.x.x server.
doesn't belong to me and it's not around me. If it were in my office,
I'd say yes, but it's not. Someone else owns it somewhere else in the
world, so there's nothing I can do about it.
I don't use NAT because I have multiple public ip addresses. The
internal computers use a router and one public ip address to get to
the internet. The SBS Server only hands out AD, authentication,
domain, dns and dhcp for the internal, private network and WWW and
SMTP for the other external, public ip address.
.
- References:
- DHCP Fails on Authorized Server
- From: talkinggoat
- Re: DHCP Fails on Authorized Server
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- DHCP Fails on Authorized Server
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