Re: SBS 2003 - dual nics connectivity problem
- From: "Lanwench [MVP - Exchange]" <lanwench@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Fri, 10 Feb 2006 09:50:21 -0500
In news:4F3FB1B8-B11F-42AB-AA7D-074FB2FC7AFC@xxxxxxxxxxxxx,
Paul Barker <PaulBarker@xxxxxxxxxxxxxxxxxxxxxxxxx> typed:
"Lanwench [MVP - Exchange]" wrote:
In news:50158C2A-BA7F-4B62-AAD8-72889E6D7DCC@xxxxxxxxxxxxx,
Paul Barker <PaulBarker@xxxxxxxxxxxxxxxxxxxxxxxxx> typed:
"Lanwench [MVP - Exchange]" wrote:
In news:89E347C0-7F1B-46A0-A4B6-D7033FFA1B47@xxxxxxxxxxxxx,
Paul Barker <Paul Barker@xxxxxxxxxxxxxxxxxxxxxxxxx> typed:
Hi, this problem has stumped me for a while. We are running two
sbs 2003 servers, both with a nic for wan and a nic for lan. The
wan ip is a static public address and teh lan ips are 192.168.x.x
The problem is that after a day or so of running with both nics
enabled, all wan connectivity is lost, and it only returns when
the lan card is disabled. I've tried different nics, but since
this problem is happening on two machines, i think we must be
missing something somewhere, perhaps something we've overlooked
along the way. Any help with this matter woudl be great, can also
provide more infomation if needed.
regards
Paul
Maybe look for event log errors ....and post an ipconfig /all from
the box in question.
PS: If you aren't using ISA, you really need to get a decent
hardware firewall appliance to stick between WAN and LAN.
heres the output
Windows IP Configuration
Host Name . . . . . . . . . . . . : tweb
Primary Dns Suffix . . . . . . . : Totem.local
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : Yes
DNS Suffix Search List. . . . . . : Totem.local
Ethernet adapter WAN:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/100 VE Network
Connection Physical Address. . . . . . . . . : 00-03-47-CE-F8-61
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 84.243.27.3
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 84.243.27.254
DNS Servers . . . . . . . . . . . : 84.243.27.253
84.243.0.210
Ethernet adapter LAN:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 3Com 3C905TX-based Ethernet
Adapter (Generic)
Physical Address. . . . . . . . . : 02-60-8C-F1-82-F5
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.9.150
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.9.50
DNS Servers . . . . . . . . . . . : 84.243.27.253
84.243.0.210
First - you have DNS problems. You have to specify 192.168.9.150
(your SBS LAN IP) for DNS on *both* NICs.....and *no* external DNS
servers. Your forwarders will take care of the external queries. Try
re-running the
CEICW - it's supposed to do this for you by default.
AD relies heavily on DNS and if the latter isn't set up perfectly,
expect problems.
What's 192.168.9.50 / default gateway? I don't like dual NIC
configurations (esp. if you don't use ISA), so I'm not sure why your
default gateway is set the way it is.
I repeat my recommendation that you get a good firewall appliance.
thanks for you help, the other machine with the problem is 2k3
server, woudl teh dns problem affect that also?
You're welcome. Re the other server - of course - if it's part of your
domain at all.
.
- References:
- Re: SBS 2003 - dual nics connectivity problem
- From: Lanwench [MVP - Exchange]
- Re: SBS 2003 - dual nics connectivity problem
- From: Paul Barker
- Re: SBS 2003 - dual nics connectivity problem
- From: Lanwench [MVP - Exchange]
- Re: SBS 2003 - dual nics connectivity problem
- From: Paul Barker
- Re: SBS 2003 - dual nics connectivity problem
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