May I ask why you have multiple NICS on the same subnet in that fashion? Why not aggregated or failover, etc...?
Or if they are for the VM's, give them dummy IP addresses and unbind the NetBIOS/MSClient stuff from them so the Win2K8 host stays away from them for real traffic? -sc From: Sean Rector [mailto:[email protected]] Sent: Wednesday, September 02, 2009 8:56 AM To: NT System Admin Issues Subject: RE: NetBT errors... Yes - they're the AD/DHCP/WINS servers. Ah ha! Thank you, sir...I'll remove NetBIOS from the additional NICs. Sean Rector, MCSE ________________________________ From: Steven M. Caesare [[email protected]] Sent: Wednesday, September 02, 2009 8:50 AM To: NT System Admin Issues Subject: RE: NetBT errors... Am I correct that each "DC" is the instance of Win2K8 running AD/DHCP? It appears they have multiple NICs on the same subnet with differing IP's and have NetBIOS enabled? -sc From: Sean Rector [mailto:[email protected]] Sent: Wednesday, September 02, 2009 8:15 AM To: NT System Admin Issues Subject: NetBT errors... Pair of HP ProLiant DL380G6 servers with dual Quad Xeon Nehalem processors & 32GB of RAM. These servers host my VMs and are my DC's as well as 50/50 split DHCP servers (65 workstations). I'm getting a ton of NetBT errors - ID 4319. Only thing is, I can't find an IP address in conflict. I have two physical adapters for each VM (under Hyper-V) as I have the VMs clustered. The VM's physical adapters get their IP's from DHCP, and the virtual adapters within the VMs have static IP's. Let me know if you need any further info... Thanks for your help! DC01's Netstat -n output: DC01 Public: Node IpAddress: [10.0.0.71] Scope Id: [] NetBIOS Local Name Table Name Type Status --------------------------------------------- VOA-NOR-DC01 <00> UNIQUE Registered VAOPERA <00> GROUP Registered VAOPERA <1C> GROUP Registered VOA-NOR-DC01 <20> UNIQUE Registered DC01 Private: Node IpAddress: [10.0.0.72] Scope Id: [] NetBIOS Local Name Table Name Type Status --------------------------------------------- VOA-NOR-DC01 <00> UNIQUE Registered VAOPERA <00> GROUP Registered VAOPERA <1C> GROUP Registered VOA-NOR-DC01 <20> UNIQUE Registered Local Area Connection 11: Node IpAddress: [10.0.0.149] Scope Id: [] NetBIOS Local Name Table Name Type Status --------------------------------------------- VOA-NOR-DC01 <00> UNIQUE Registered VAOPERA <00> GROUP Registered VAOPERA <1C> GROUP Registered VOA-NOR-DC01 <20> UNIQUE Registered Local Area Connection 12: Node IpAddress: [10.0.0.151] Scope Id: [] NetBIOS Local Name Table Name Type Status --------------------------------------------- VOA-NOR-DC01 <00> UNIQUE Registered VAOPERA <00> GROUP Registered VAOPERA <1C> GROUP Registered VOA-NOR-DC01 <20> UNIQUE Registered Local Area Connection 15: Node IpAddress: [10.0.0.152] Scope Id: [] NetBIOS Local Name Table Name Type Status --------------------------------------------- VOA-NOR-DC01 <00> UNIQUE Registered VAOPERA <00> GROUP Registered VAOPERA <1C> GROUP Registered VOA-NOR-DC01 <20> UNIQUE Registered Local Area Connection 16: Node IpAddress: [10.0.0.143] Scope Id: [] NetBIOS Local Name Table Name Type Status --------------------------------------------- VOA-NOR-DC01 <00> UNIQUE Registered VAOPERA <00> GROUP Registered VAOPERA <1C> GROUP Registered VOA-NOR-DC01 <20> UNIQUE Registered Local Area Connection 14: Node IpAddress: [10.0.0.158] Scope Id: [] NetBIOS Local Name Table Name Type Status --------------------------------------------- VOA-NOR-DC01 <00> UNIQUE Registered VAOPERA <00> GROUP Registered VAOPERA <1C> GROUP Registered VOA-NOR-DC01 <20> UNIQUE Registered Local Area Connection 17: Node IpAddress: [10.0.0.160] Scope Id: [] NetBIOS Local Name Table Name Type Status --------------------------------------------- VOA-NOR-DC01 <00> UNIQUE Registered VAOPERA <00> GROUP Registered VAOPERA <1C> GROUP Registered VOA-NOR-DC01 <20> UNIQUE Registered C:\Users\Administrator.VAOPERA> DC02's Netstat -n output: Public: Node IpAddress: [10.0.0.73] Scope Id: [] NetBIOS Local Name Table Name Type Status --------------------------------------------- VOA-NOR-DC02 <00> UNIQUE Registered VAOPERA <00> GROUP Registered VAOPERA <1C> GROUP Registered VOA-NOR-DC02 <20> UNIQUE Registered VAOPERA <1B> UNIQUE Registered Local Area Connection 2: Node IpAddress: [10.0.0.74] Scope Id: [] NetBIOS Local Name Table Name Type Status --------------------------------------------- VOA-NOR-DC02 <00> UNIQUE Registered VAOPERA <00> GROUP Registered VAOPERA <1C> GROUP Registered VOA-NOR-DC02 <20> UNIQUE Registered VAOPERA <1B> UNIQUE Registered Local Area Connection 7: Node IpAddress: [10.0.0.146] Scope Id: [] NetBIOS Local Name Table Name Type Status --------------------------------------------- VOA-NOR-DC02 <00> UNIQUE Registered VAOPERA <00> GROUP Registered VAOPERA <1C> GROUP Registered VOA-NOR-DC02 <20> UNIQUE Registered VAOPERA <1B> UNIQUE Registered Local Area Connection 8: Node IpAddress: [10.0.0.147] Scope Id: [] NetBIOS Local Name Table Name Type Status --------------------------------------------- VOA-NOR-DC02 <00> UNIQUE Registered VAOPERA <00> GROUP Registered VAOPERA <1C> GROUP Registered VOA-NOR-DC02 <20> UNIQUE Registered VAOPERA <1B> UNIQUE Registered Local Area Connection 9: Node IpAddress: [10.0.0.159] Scope Id: [] NetBIOS Local Name Table Name Type Status --------------------------------------------- VOA-NOR-DC02 <00> UNIQUE Registered VAOPERA <00> GROUP Registered VAOPERA <1C> GROUP Registered VOA-NOR-DC02 <20> UNIQUE Registered VAOPERA <1B> UNIQUE Registered Public 2: Node IpAddress: [10.0.0.161] Scope Id: [] NetBIOS Local Name Table Name Type Status --------------------------------------------- VOA-NOR-DC02 <00> UNIQUE Registered VAOPERA <00> GROUP Registered VAOPERA <1C> GROUP Registered VOA-NOR-DC02 <20> UNIQUE Registered VAOPERA <1B> UNIQUE Registered Local Area Connection 15: Node IpAddress: [10.0.0.154] Scope Id: [] NetBIOS Local Name Table Name Type Status --------------------------------------------- VOA-NOR-DC02 <00> UNIQUE Registered VAOPERA <00> GROUP Registered VAOPERA <1C> GROUP Registered VOA-NOR-DC02 <20> UNIQUE Registered VAOPERA <1B> UNIQUE Registered Local Area Connection 16: Node IpAddress: [10.0.0.153] Scope Id: [] NetBIOS Local Name Table Name Type Status --------------------------------------------- VOA-NOR-DC02 <00> UNIQUE Registered VAOPERA <00> GROUP Registered VAOPERA <1C> GROUP Registered VOA-NOR-DC02 <20> UNIQUE Registered VAOPERA <1B> UNIQUE Registered C:\Users\Administrator.VAOPERA> Sean Rector, MCSE Information Technology Manager 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