More then a one NIC

[Techhead156]

When I add a second NIC to a Windows 2003 server VM, and try to go online, IE keeps trying to use the 1st NIC (which is set to Host Only mode), while the 2nd is set to (Shared Networking). Sometime it works, but its slower than normal. Most of the time it doesn't.

Yet when i only have one NIC enabled in the VM, everything is ok.. seems theres a clash.

Any help here would be appreciate.. Using Parallels 5

 

[Elric]

Hi,
please click start->run and execute cmd.exe. Type in the appeared window command "ipconfig /all" and post here the output

 

[Techhead156]

C:\Documents and Settings\Administrator>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Exchange2007
Primary Dns Suffix . . . . . . . : com.au
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : com.au
localdomain

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Parallels Ethernet Adapter
Physical Address. . . . . . . . . : 00-1C-42-91-B6-D1
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.37.129.3
Subnet Mask . . . . . . . . . . . : 255.0.0.0
Default Gateway . . . . . . . . . : 10.37.129.1
DNS Servers . . . . . . . . . . . : 10.37.129.1

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . : localdomain
Description . . . . . . . . . . . : Realtek RTL8029(AS)-based Et
r (Generic) #2
Physical Address. . . . . . . . . : 00-1C-42-52-8D-72
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 10.211.55.8
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 10.211.55.1
DHCP Server . . . . . . . . . . . : 10.211.55.1
DNS Servers . . . . . . . . . . . : 10.211.55.1
Lease Obtained. . . . . . . . . . : Monday, 25 January 2010 3:44
Lease Expires . . . . . . . . . . : Monday, 1 February 2010 3:44

C:\Documents and Settings\Administrator>

 

[Elric]

Here is the problem:

C:\Documents and Settings\Administrator>ipconfig /all

Ethernet adapter Local Area Connection:
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.37.129.3
Subnet Mask . . . . . . . . . . . : 255.0.0.0
Default Gateway . . . . . . . . . : 10.37.129.1
DNS Servers . . . . . . . . . . . : 10.37.129.1

Ethernet adapter Local Area Connection 2:
DHCP Enabled. . . . . . . . . . . : Yes
IP Address. . . . . . . . . . . . : 10.211.55.8
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 10.211.55.1

So, there are two gateways and the one from the first is used, i.e. 10.37.129.1.

HostOnly network doesn't have a gateway, likely gateway for LocalAreaConenction1 should be deleted

 

[Techhead156]

So if Host Only is used for Windows 2003 DC, what default gateway should I use... ? ... The reason I chose Host only for DC is because i don;t want to be tied to my home router.

 

[Techhead156]

So why does the Shared NIC require a gateway where as the Host doesn't ? as the default gateway for shared networking is 10.211.55.1. They NIC's point to the same IP, whats the difference?

 

[Elric]

So if Host Only is used for Windows 2003 DC, what default gateway should I use... ? ... The reason I chose Host only for DC is because i don;t want to be tied to my home router.

HostOnly means that VM will only be able to communicate with the Mac OS. In this case the gateway is not required, because MacOS Host is accessible directly via ip-address 10.37.129.2

So why does the Shared NIC require a gateway where as the Host doesn't ? as the default gateway for shared networking is 10.211.55.1. They NIC's point to the same IP, whats the difference?

SharedNetworking is intended to provide internet. In this case the special Parallels process (prl_naptd) provides acess to network, acting as Firewall/Proxy. And it is its address (10.211.55.1) provided as gateway, making all indirect packets routed to it.