D
David Bolt
Getting a bit desperate here, and somewhat confused.
The server is connected to a hub by one nic, and to a Router by a second nic.
Because this is Small Business Server, we are using ISA Server for the firewalling etc.
Now, as long as no one attempts to access pages via IIS, all seems OK, but access to IIS pages results in messages indicating a conflict between the Windows Routing table and the LAT.
Here is the result of the Route PRINT (all metrics are 1):
===================================
Interface List
0x1 ...............MS TCP Loopback interface
0x2 ...xx xx xx xx xx xx .NDIS 5.0 driver (Microsoft's packet scheduler)
0x2 ...yy yy yy yy yy yy .NDIS 5.0 driver (Microsoft's packet scheduler)
===================================
Active Routes:
Network destination, Netmask, Gateway, Interface
0.0.0.0, 0.0.0.0, 192.168.0.9, 192.168.0.1
127.0.0.0, 255.0.0.0, 127.0.0.1, 127.0.0.1
192.168.0.0, 255.255.255.0, 192.168.0.1, 192.168.0.1
192.168.0.1, 255.255.255.255, 127.0.0.1, 127.0.0.1
192.168.0.255, 255.255.255.255, 192.168.0.1, 192.168.0.1
192.168.16.0, 255.255.255.0, 192.168.16.2, 192.168.16.2
192.168.16.2, 255.255.255.255, 127.0.0.1, 127.0.0.1
192.168.16.255, 255.255.255.255, 192.168.16.2, 192.168.16.2
224.0.0.0, 224.0.0.0, 192.168.0.1, 192.168.0.1
224.0.0.0, 224.0.0.0, 192.168.16.2, 192.168.16.2
255.255.255.255, 255.255.255.255, 192.168.0.1, 192.168.0.1
Default Gateway: 192.168.0.9
Persistent Routes: none
Now, both NICs have static IP addresses, 192.168.16.2 for the primary connecting the server to the hub and 192.168.0.1 for the secondary connecting the server to the router. The gateway 192.168.0.9 is on the router.
The default LAT is this:
The LAT table is currently:
10.0.0.0 - 10.255.255.255
169.254.0.0 - 169.254.255.255
172.16.0.0 - 172.31.255.255
192.168.0.0 - 192.168.0.255
192.168.16.0 - 192.168.16.255
but this causes conflicts.
The addresses 192.168.0.1 and 192.168.0.9 seem to be causing problems, but I do not understand why.
192.168.0.9 is a gateway on the router, which my mail software requires access to.
Any explanations, including internal and external interfaces, would be most helpful.
Thanks
Dave
The server is connected to a hub by one nic, and to a Router by a second nic.
Because this is Small Business Server, we are using ISA Server for the firewalling etc.
Now, as long as no one attempts to access pages via IIS, all seems OK, but access to IIS pages results in messages indicating a conflict between the Windows Routing table and the LAT.
Here is the result of the Route PRINT (all metrics are 1):
===================================
Interface List
0x1 ...............MS TCP Loopback interface
0x2 ...xx xx xx xx xx xx .NDIS 5.0 driver (Microsoft's packet scheduler)
0x2 ...yy yy yy yy yy yy .NDIS 5.0 driver (Microsoft's packet scheduler)
===================================
Active Routes:
Network destination, Netmask, Gateway, Interface
0.0.0.0, 0.0.0.0, 192.168.0.9, 192.168.0.1
127.0.0.0, 255.0.0.0, 127.0.0.1, 127.0.0.1
192.168.0.0, 255.255.255.0, 192.168.0.1, 192.168.0.1
192.168.0.1, 255.255.255.255, 127.0.0.1, 127.0.0.1
192.168.0.255, 255.255.255.255, 192.168.0.1, 192.168.0.1
192.168.16.0, 255.255.255.0, 192.168.16.2, 192.168.16.2
192.168.16.2, 255.255.255.255, 127.0.0.1, 127.0.0.1
192.168.16.255, 255.255.255.255, 192.168.16.2, 192.168.16.2
224.0.0.0, 224.0.0.0, 192.168.0.1, 192.168.0.1
224.0.0.0, 224.0.0.0, 192.168.16.2, 192.168.16.2
255.255.255.255, 255.255.255.255, 192.168.0.1, 192.168.0.1
Default Gateway: 192.168.0.9
Persistent Routes: none
Now, both NICs have static IP addresses, 192.168.16.2 for the primary connecting the server to the hub and 192.168.0.1 for the secondary connecting the server to the router. The gateway 192.168.0.9 is on the router.
The default LAT is this:
The LAT table is currently:
10.0.0.0 - 10.255.255.255
169.254.0.0 - 169.254.255.255
172.16.0.0 - 172.31.255.255
192.168.0.0 - 192.168.0.255
192.168.16.0 - 192.168.16.255
but this causes conflicts.
The addresses 192.168.0.1 and 192.168.0.9 seem to be causing problems, but I do not understand why.
192.168.0.9 is a gateway on the router, which my mail software requires access to.
Any explanations, including internal and external interfaces, would be most helpful.
Thanks
Dave