Default Gateway Configuration

Sun, 21 Jun 2009 02:54:56 Z

Compute Cluster Network Topology: Scenario 2, All nodes on both public and private networks
A DHCP server is on Headnode

For some nodes, the default gateway is switching randomly, say, on node 7
C:\Documents and Settings\ChenDT>route print

IPv4 Route Table
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x10003 ...00 15 c5 f1 15 d2 ...... Broadcom BCM5708C NetXtreme II GigE (NDIS VB
D Client)
0x10004 ...00 15 c5 f1 15 d4 ...... Broadcom BCM5708C NetXtreme II GigE (NDIS VB
D Client) #2
===========================================================================
===========================================================================
Active Routes:
Network Destination        Netmask          Gateway       Interface Metric
          0.0.0.0          0.0.0.0    172.16.88.200      172.16.88.7      8
          0.0.0.0          0.0.0.0    192.168.1.250     192.168.1.24     10
        127.0.0.0        255.0.0.0        127.0.0.1        127.0.0.1      1
      172.16.88.0    255.255.255.0      172.16.88.7      172.16.88.7     10
      172.16.88.7 255.255.255.255        127.0.0.1        127.0.0.1     10
   172.16.255.255 255.255.255.255      172.16.88.7      172.16.88.7     10
      192.168.1.0    255.255.255.0     192.168.1.24     192.168.1.24     10
     192.168.1.24 255.255.255.255        127.0.0.1        127.0.0.1     10
    192.168.1.255 255.255.255.255     192.168.1.24     192.168.1.24     10
        224.0.0.0        240.0.0.0      172.16.88.7      172.16.88.7     10
        224.0.0.0        240.0.0.0     192.168.1.24     192.168.1.24     10
255.255.255.255 255.255.255.255      172.16.88.7      172.16.88.7      1
255.255.255.255 255.255.255.255     192.168.1.24     192.168.1.24      1
Default Gateway:     192.168.1.250
===========================================================================
Persistent Routes:
None

C:\Documents and Settings\ChenDT>route print

IPv4 Route Table
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x10003 ...00 15 c5 f1 15 d2 ...... Broadcom BCM5708C NetXtreme II GigE (NDIS VB
D Client)
0x10004 ...00 15 c5 f1 15 d4 ...... Broadcom BCM5708C NetXtreme II GigE (NDIS VB
D Client) #2
===========================================================================
===========================================================================
Active Routes:
Network Destination        Netmask          Gateway       Interface Metric
          0.0.0.0          0.0.0.0    172.16.88.200      172.16.88.7      8
          0.0.0.0          0.0.0.0    192.168.1.250     192.168.1.24     10
        127.0.0.0        255.0.0.0        127.0.0.1        127.0.0.1      1
      172.16.88.0    255.255.255.0      172.16.88.7      172.16.88.7     10
      172.16.88.7 255.255.255.255        127.0.0.1        127.0.0.1     10
   172.16.255.255 255.255.255.255      172.16.88.7      172.16.88.7     10
      192.168.1.0    255.255.255.0     192.168.1.24     192.168.1.24     10
     192.168.1.24 255.255.255.255        127.0.0.1        127.0.0.1     10
    192.168.1.255 255.255.255.255     192.168.1.24     192.168.1.24     10
        224.0.0.0        240.0.0.0      172.16.88.7      172.16.88.7     10
        224.0.0.0        240.0.0.0     192.168.1.24     192.168.1.24     10
255.255.255.255 255.255.255.255      172.16.88.7      172.16.88.7      1
255.255.255.255 255.255.255.255     192.168.1.24     192.168.1.24      1
Default Gateway:     172.16.88.200
===========================================================================
Persistent Routes:
None

the problem is that the default gateway change from 192.168.1.250 (private) to 172.16.88.200 (public) automatically, or back to 192.168.1.250 again.
How can I fix the default gateway to be 172.16.88.200 (public)? Or How can I remove the gateway from dhcp server?

Thanks in advance

Default Gateway Configuration

Sun, 21 Jun 2009 03:39:50 Z

I hope the following help

reg add HKLM\System\CurrentControlSet\Services\Tcpip\Parameters /v EnableDeadGWDetect /t REG_DWORD /d 0 /f

see http://technet.microsoft.com/en-us/library/cc766102.aspx for more