Red Hat NETSCAPE MANAGEMENT SYSTEM 4.5 Uživatelský manuál stáhnout pdf (Strana 222)

Networking

222

www.vmware.com

Forcing a Virtual Adapter to Use

Promiscuous Mode

For security reasons, guest operating systems are not normally allowed to set their

virtual Ethernet adapters to use promiscuous mode.

In some circumstances, you may need to use the virtual Ethernet adapters in

promiscuous mode. To enable this use, you must set the PromiscuousAllowed

configuration variable to yes. To do so, follow these steps.

1. Check the Edit Configuration page of the VMware Management Interface to

determine what network the virtual Ethernet adapter is using. For this example,

assume that the Networking section of the page shows the adapter is using

vmnic0.

2. Log in to the server’s console operating system and enter the following

command:

echo "PromiscuousAllowed yes" > /proc/vmware/net/vmnic0/config

This allows the guest operating systems in all virtual machines using vmnic0 to

enable promiscuous mode.

If the adapter is using a different network, such as vmnet_0, make the

appropriate substitution in the command.

3. Take the appropriate steps in the guest operating system to enable promiscuous

mode on the virtual network adapter.

You may want to allow only some adapters on a particular network to use

promiscuous mode. In that case, you can selectively disable promiscuous mode based

on the MAC address of the virtual machine’s Ethernet adapter. To do so, follow these

steps.

1. Connect to the virtual machine with the remote console and use the

appropriate guest operating system tools to determine the MAC address of the

virtual Ethernet adapter.

2. Log in to the console operating system and enter the following command:

echo "PromiscuousAllowed no" > /proc/vmware/net/vmnic0/<MACAddress>

In place of <MACAddress>, substitute the virtual Ethernet adapter’s MAC

address in the standard format 00:05:69:XX:YY:ZZ. If the adapter is using

1 2 ... 217 218 219 220 221 222 223 224 225 226 227 ... 285 286

Žádné komentáře

Red Hat NETSCAPE MANAGEMENT SYSTEM 4.5 Uživatelský manuál Strana 222