NGPSoft1
asked on
One Server, Two NICs, Two Networks, IP Address used on wrong NIC
I have a server running Windows Server 2003 Standard with SP2. This server has two network cards. One is used for standard network traffic and the other is used for iSCSI. The problem is that standard network traffic is being sent on the correct network card but with the wrong IP address.
The iSCSI NIC has an IP address of 172.24.8.4. NIC #2 has an IP address of 192.168.11.52. My firewall is getting packets from NIC #2 with the source IP address of 172.24.8.4.
Why is traffic coming from NIC #2 with the wrong IP address? How do I fix this server so that this does not happen?
I have included the "ipconfig /all" and "route print" output.
The iSCSI NIC has an IP address of 172.24.8.4. NIC #2 has an IP address of 192.168.11.52. My firewall is getting packets from NIC #2 with the source IP address of 172.24.8.4.
Why is traffic coming from NIC #2 with the wrong IP address? How do I fix this server so that this does not happen?
I have included the "ipconfig /all" and "route print" output.
C:\>ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : myserver
Primary Dns Suffix . . . . . . . : mydomain.com
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : mydomain.com
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP NC373i Multifunction Gigabit Server Adapter
Physical Address. . . . . . . . . : 00-19-BB-33-FB-7E
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 172.24.8.4
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
Ethernet adapter Local Area Connection 2:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP NC373i Multifunction Gigabit Server Adapter #2
Physical Address. . . . . . . . . : 00-19-BB-33-FB-82
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.11.52
Subnet Mask . . . . . . . . . . . : 255.255.254.0
Default Gateway . . . . . . . . . : 192.168.11.5
DNS Servers . . . . . . . . . . . : 192.168.11.3
192.168.11.20
C:\>route print
IPv4 Route Table
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x10003 ...00 19 bb 33 fb 7e ...... HP NC373i Multifunction Gigabit Server Adapter
0x10004 ...00 19 bb 33 fb 82 ...... HP NC373i Multifunction Gigabit Server Adapter #2
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.11.5 192.168.11.52 10
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
172.24.8.0 255.255.255.0 172.24.8.4 172.24.8.4 10
172.24.8.4 255.255.255.255 127.0.0.1 127.0.0.1 10
172.24.255.255 255.255.255.255 172.24.8.4 172.24.8.4 10
192.168.10.0 255.255.254.0 192.168.11.52 192.168.11.52 10
192.168.11.52 255.255.255.255 127.0.0.1 127.0.0.1 10
192.168.11.255 255.255.255.255 192.168.11.52 192.168.11.52 10
224.0.0.0 240.0.0.0 172.24.8.4 172.24.8.4 10
224.0.0.0 240.0.0.0 192.168.11.52 192.168.11.52 10
255.255.255.255 255.255.255.255 172.24.8.4 172.24.8.4 1
255.255.255.255 255.255.255.255 192.168.11.52 192.168.11.52 1
Default Gateway: 192.168.11.5
===========================================================================
Persistent Routes:
None
Check the binding order (Network Properties/Advanced/Advanc ed Settings) and make sure that the NIC with the 192.168.11.52 address is first in the binding order.
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
mcsween, the iSCSI network is a segregated network. The NIC using iSCSI is not connected in any way to the network with the firewall.
I will check out the advanced settings that you and hypercat recommended.
I will check out the advanced settings that you and hypercat recommended.
ASKER
Changing the binding order did not stop the traffic. Removing the bindings from the NIC for iSCSI did stop the traffic. Thanks to both hypercat and mcsween for your help.