Windows Server 2008 Guests not seeing each other

[lara400]

Hi,

This is driving me insane! Still quite new to VM's so probably a simple fault - I hope! My setup and problem-

Host: Vista - connected to internet via DHCP from ISP.

First: VM: Domain controller with DNS and DHCP installed on. Windows Server 2008. 1 NIC is bridged to host and the other NIC is private on address 169.243.10.x/24 subnet. DNS is registering other Server machines and DHCP serving workstation.

Second VM: Windows Server 2003 standalone. Set on static IP 169.243.10.26/24. It CAN ping the domain controller and vice versa (doman controller can ping this server). nslookup is fine.

Third VM: Windows XP - DHCP and can ping Windows Server 2008 and vice versa. nslookup is fine.

Forth VM: Windows Server 2008 - static IP 169.243.10.29 - it CAN ping domain controller BUT domain controller cannot ping this server?? Checked and re-checked all setting seem fine - the DNS server and gateway is going to the domain controller. Nslookup is fine but it cannot resolve external addresses - since the domain controller canno see this server so does not post a reply? However, private addresses seem to go through fine.

All Guests are going through VMNet2 and aside from the two Windows Server 2008 servers all others can ping each other and see each other fine. It seems like the issue is on the domain controller since it cannot ping my other Windows Server 2008 VM - nslookup is fine though??

This is really driving me insane! Can someone please shed any light onto this.

IPCONFIG OF DOMAIN CONTROLLER (I have cut out all the other useless stuff that ipconfig gives 😞

C:\>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Domain1

Primary Dns Suffix . . . . . . . : acme.org

Node Type . . . . . . . . . . . . : Hybrid

IP Routing Enabled. . . . . . . . : Yes

WINS Proxy Enabled. . . . . . . . : No

DNS Suffix Search List. . . . . . : acme.org

Ethernet adapter Private Network:

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network Connection

Physical Address. . . . . . . . . : 00-0C-29-9A-C9-24

DHCP Enabled. . . . . . . . . . . : No

Autoconfiguration Enabled . . . . : Yes

Link-local IPv6 Address . . . . . : fe80::a552:ffe:f464:521d%10(Preferred)

IPv4 Address. . . . . . . . . . . : 169.243.10.20(Preferred)

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . : 0.0.0.0

192.168.1.1

DNS Servers . . . . . . . . . . . : 169.243.10.20

NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Public Network:

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network Connection #

2

Physical Address. . . . . . . . . : 00-0C-29-9A-C9-2E

DHCP Enabled. . . . . . . . . . . : No

Autoconfiguration Enabled . . . . : Yes

Link-local IPv6 Address . . . . . : fe80::d5ec:3cf4:71e5:8990%12(Preferred)

IPv4 Address. . . . . . . . . . . : 192.168.1.20(Preferred)

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . : 192.168.1.1

DNS Servers . . . . . . . . . . . : 192.168.1.1

NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network Connection #

3

Physical Address. . . . . . . . . : 00-0C-29-9A-C9-38

DHCP Enabled. . . . . . . . . . . : Yes

Autoconfiguration Enabled . . . . : Yes

IPCONFIG OF OTHER WINDOWS SERVER 2008:

C:\>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Domain2

Primary Dns Suffix . . . . . . . : acme.org

Node Type . . . . . . . . . . . . : Hybrid

IP Routing Enabled. . . . . . . . : No

WINS Proxy Enabled. . . . . . . . : No

DNS Suffix Search List. . . . . . : acme.org

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : acme.org

Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network Connection

Physical Address. . . . . . . . . : 00-0C-29-3D-D6-61

DHCP Enabled. . . . . . . . . . . : No

Autoconfiguration Enabled . . . . : Yes

Link-local IPv6 Address . . . . . : fe80::b807:ef1e:deba:80f1%10(Preferred)

IPv4 Address. . . . . . . . . . . : 169.243.10.29(Preferred)

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . : 169.243.10.20

DNS Servers . . . . . . . . . . . : 169.243.10.20

NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter Local Area Connection* 8:

Media State . . . . . . . . . . . : Media disconnected

Connection-specific DNS Suffix . : acme.org

Description . . . . . . . . . . . : Microsoft ISATAP Adapter

Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0

DHCP Enabled. . . . . . . . . . . : No

Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 11:

Connection-specific DNS Suffix . : acme.org

Description . . . . . . . . . . . : Microsoft 6to4 Adapter

Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0

DHCP Enabled. . . . . . . . . . . : No

Autoconfiguration Enabled . . . . : Yes

IPv6 Address. . . . . . . . . . . : 2002:a9f3:a1d::a9f3:a1d(Preferred)

Default Gateway . . . . . . . . . : 2002:c058:6301::c058:6301

DNS Servers . . . . . . . . . . . : 169.243.10.20

NetBIOS over Tcpip. . . . . . . . : Disabled

If you need more info please ask.

[AWo]

Is a firewall active on the fourth machine?

Do you ping the IP addresses?

If you found this information useful, please consider awarding points for "Correct" or "Helpful" answers/replies. Thanks!!

[lara400]

Hi,

Firewall is disabled on both servers and I only ping the IP addresses. I am contantly getting no reply from the domain controller to the other windows 2008 server.

I might try another vswitch tonight.

[AWo]

If you have cloned (by copying) your guests, check that they don't have the same MAC addresses!

If you found this information useful, please consider awarding points for "Correct" or "Helpful" answers/replies. Thanks!!

[lara400]

thanks AWo for the help so far - I chekced that yesterday - both have dfferent MAC addresses. I did not clone or copy the machines - both are fresh clean builds - damn Windows Server 2008!

anything else you can think of?

[Scissor]

Could it be the firewall on your Server 2008? I can't remember if the firewall allows incomings pings by default when the system is configured in a workgroup configuration... Although turning on file and printer sharing should then allow incoming pings, if I remember correctly.

• oops, I see the poster has already disabled the firewall, so disregard this post ***

[Scissor]

...

Windows IP Configuration

Host Name . . . . . . . . . . . . : Domain1

Ethernet adapter Private Network:

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network Connection

Physical Address. . . . . . . . . : 00-0C-29-9A-C9-24

DHCP Enabled. . . . . . . . . . . : No

Autoconfiguration Enabled . . . . : Yes

Link-local IPv6 Address . . . . . : fe80::a552:ffe:f464:521d%10(Preferred)

IPv4 Address. . . . . . . . . . . : 169.243.10.20(Preferred)

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . : 0.0.0.0

192.168.1.1

DNS Servers . . . . . . . . . . . : 169.243.10.20

NetBIOS over Tcpip. . . . . . . . : Enabled

Not sure if it is relevant, but that Default Gateway entry of 0.0.0.0 looks strange?

[AWo]

Not necessearily as this connection points to the VMware isolated host-only network, there's no gateway needed and there's a gateway on the bridged connection where it makes more sense.

If you found this information useful, please consider awarding points for "Correct" or "Helpful" answers/replies. Thanks!!

[AWo]

Just a guess, disable all IPv6 stuff on the DC and your 2008 in question.

If yJust a guess, ou found this information useful, please consider awarding points for "Correct" or "Helpful" answers/replies. Thanks!!

[rwinchester99]

Windows 2008 has several firewall configurations. not just the one in the control panel.

If you go into administration tools-server manager.

expand configuration. Open windows firewall with advanced security. turn off private and public profile.