Specifications

VMware, Inc. 315
Chapter 11 Networking
Examples
findnic vmnic0 10.2.0.5 10.2.0.4
Binds!VMkernel!device!vmnic0!to!IP!address!10.2.0.5!and!tries!to!ping!the!remote!
machine!with!the!IP!address!10.2.0.4.!
findnic -f vmnic1 10.2.0.5 10.2.0.4
Binds!VMkernel!device!vmnic1!to!IP!address!10.2.0.5,!and!tries!to!flood!ping!the!remote!
machine!with!the!IP!address!10.2.0.4.
Forcing the Network Driver to Use a Specific Speed
The!VMkernel!network!device!drivers!start!with!a!default!setting!of!Autonegotiate.!
This!setting!will!work!correctly!with!network!switches!set!to!autonegotiate.!If!your!
switch!is!configured!for!a!specific!speed!and!duplex!setting,!force!the!network!driver!to!
use!the!same!speed!and!duplex!setting.
If!you!encounter!problems—in!
particular,!very!low!bandwidth—it!is!likely!that!the!NIC!
did!not!autonegotiate!properly.!Configure!the!speed!and!duplex!settings!manually.
To!resolve!the!problem,!change!the!settings!on!your!switch!or!change!the!settings!for!
the!VMkernel!network!device!using!the!VMware!Management!Interface.
To change the settings of the VMkernel network device
1Log!in!to!the!management!interface!as!
root.
2Click!on!the!Options!tab.
3Click!Network!Connections.
4 Locate!the!device!you!want!to!reconfigure!and!choose!the!appropriate!setting!from!
the!drop‐down!list!for!Configured!Speed,!Duplex.
5Click!OK.
The!network!speed!settings!change!takes!effect!after!a!reboot.
Enabling a Virtual Adapter to Use Promiscuous Mode
For!security,!guest!operating!systems!cannot!set!their!virtual!Ethernet!adapters!to!use!
promiscuous!mode.!However,!you!might!need!to!use!the!virtual!Ethernet!adapters!in!
promiscuous!mode.!To!enable!this!use,!set!the!PromiscuousAllowed!configuration!
variable!to!yes.!