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The address ranges in conflict are: 192.0.0.192-192.0.0... - 23.Jan.2006 11:57:34 PM

tdmce

Posts: 24
Joined: 29.May2005
From: New Zealand
Status: offline

Hi,

I've just upgraded ISA 2000 to ISA 2004 SP1 and then I ran the Internet Configuration Wizard in SBS03 to setup the firewall rules.

I'm now getting this error every few minutes:
ISA Server detected routes through adapter Server Local Area Connection that do not correlate with the network element to which this adapter belongs. For best practice, the address range of an ISA Server network should match the address ranges routable through the associated network adapter as defined in the routing table. Otherwise valid packets may be dropped as spoofed. (This alert may occur momentarily when you create a remote site network. You may safely ignore this message if it does not reoccur.) The address ranges in conflict are: 192.0.0.192-192.0.0.192;.
<br>ISA Server detected routes through adapter External that do not correlate with the network element to which this adapter belongs. For best practice, the address range of an ISA Server network should match the address ranges routable through the associated network adapter as defined in the routing table. Otherwise valid packets may be dropped as spoofed. (This alert may occur momentarily when you create a remote site network. You may safely ignore this message if it does not reoccur.) The address ranges in conflict are: 192.0.0.192-192.0.0.192;.

Based on a newsgroup posting, I was told to delete the 192.0.0.192 entry as they didn't think it should be in there. So i used the route delete 192.0.0.192 and removed it, the errors went away until I rebooted the machine. Now the 192.0.0.192 is somehow back in the routing table and isa is complaining again.

Here is what the IPconfig /all and a print of the route table looks like currently:

C:\Documents and Settings\Administrator>ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : removed
Primary Dns Suffix . . . . . . . : removed
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : removed
Ethernet adapter External:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : IBM 10/100 Ethernet Server Adapter #2
Physical Address. . . . . . . . . : 00-07-E9-1F-4F-7E
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.0.2
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.0.3
DNS Servers . . . . . . . . . . . : 192.168.16.18
Primary WINS Server . . . . . . . : 192.168.16.18
NetBIOS over Tcpip. . . . . . . . : Disabled

Ethernet adapter Server Local Area Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom NetXtreme Gigabit Ethernet
Physical Address. . . . . . . . . : 00-09-6B-A5-28-21
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.16.18
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : 192.168.16.18
Primary WINS Server . . . . . . . : 192.168.16.18

C:\Documents and Settings\Administrator>route print
IPv4 Route Table
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...00 07 e9 1f 4f 7e ...... IBM Netfinity 10/100 Ethernet Security Adapter 2
#2 - Packet Scheduler Miniport
0x3 ...00 09 6b a5 28 21 ...... Broadcom NetXtreme Gigabit Ethernet - Packet Sch
eduler Miniport
===========================================================================
===========================================================================
Active Routes:
Network Destination        Netmask          Gateway       Interface Metric
         0.0.0.0          0.0.0.0      192.168.0.3      192.168.0.2      1
       127.0.0.0        255.0.0.0        127.0.0.1        127.0.0.1      1
     192.0.0.192 255.255.255.255    192.168.16.18    192.168.16.18      1
     192.168.0.0    255.255.255.0      192.168.0.2      192.168.0.2     20
     192.168.0.2 255.255.255.255        127.0.0.1        127.0.0.1     20
   192.168.0.255 255.255.255.255      192.168.0.2      192.168.0.2     20
    192.168.16.0    255.255.255.0    192.168.16.18    192.168.16.18     20
   192.168.16.18 255.255.255.255        127.0.0.1        127.0.0.1     20
192.168.16.255 255.255.255.255    192.168.16.18    192.168.16.18     20
       224.0.0.0        240.0.0.0      192.168.0.2      192.168.0.2     20
       224.0.0.0        240.0.0.0    192.168.16.18    192.168.16.18     20
255.255.255.255 255.255.255.255      192.168.0.2      192.168.0.2      1
255.255.255.255 255.255.255.255    192.168.16.18    192.168.16.18      1
Default Gateway:       192.168.0.3
===========================================================================
Persistent Routes:
None

Really stuck on this one.
Thanks
Tristan

Post #: 1

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RE: The address ranges in conflict are: 192.0.0.192-192... - 24.Jan.2006 2:05:28 PM

ababinchak

Posts: 195
Joined: 16.Aug.2005
From: Michigan
Status: offline

Look for a device on your network with a 192.0.0. address. It might be a printer with a network card in it. Or maybe a copy machine/printer? Set that device to have an IP on LAN IP range, delete the route.

_____________________________

Amy

Need more help? http://isainsbs.blogspot.com

(in reply to tdmce)

Post #: 2

RE: The address ranges in conflict are: 192.0.0.192-192... - 24.Jan.2006 7:50:53 PM

tdmce

Posts: 24
Joined: 29.May2005
From: New Zealand
Status: offline

You got me thinking. I actually think this 192.0.0.192 is a shared photocopier printer or another device on a different server which belongs to another company. I remember when my clients equipment was getting set up them saying how this printer needs to be shared between both companies.

If that is the case I probably can't change the IP address of the printer as it would break the other server setup. Any ideas?

I can't ping the 192.0.0.192 from our server.

Thanks

(in reply to ababinchak)

Post #: 3

RE: The address ranges in conflict are: 192.0.0.192-192... - 24.Jan.2006 8:49:52 PM

tdmce

Posts: 24
Joined: 29.May2005
From: New Zealand
Status: offline

Remotely I can't find any 192.0.0.192 devices on our network. Definitely nothing showing in DHCP nor IPconfig /all.

Not sure how to get a list of all ip addresses on a network remotely.
Do you know if this can be done?

(in reply to tdmce)

Post #: 4