VMware Workstation 7 Manual de usuario descargar pdf (Pagina 316)

Workstation User’s Manual

316 VMware, Inc.

Using Virtual Network Adapters in Promiscuous Mode on

a Linux Host

Workstationdoesnotallowthevirtualnetworkadaptertogointopromiscuousmode

unlesstheuserrunningWorkstationhaspermissiontomakethatsetting.This

restrictionfollowsthestandardLinuxpracticethatonlytherootusercanputanetwork

interfaceintopromiscuousmode.

WhenyouinstallandconfigureWorkstation,youmustruntheins

tallationastheroot

user.Workstationcreatesthevmnetdeviceswithrootownershipandrootgroup

ownership,whichmeansthatonlytherootuserhasreadandwritepermissionstothe

devices.

Tosetthevirtualmachine’snetworkadaptertopromiscuousmode,youmustlaunch

Workstationastherootus

erbecauseyo

umusthavereadandwriteaccesstothevmnet

device.Forexample,ifyouareusingbridgednetworking,youmusthaveaccessto

/dev/vmnet0.

Tograntselectedotherusersreadandwriteaccesstothevmnetdevice,youcancreate

anewgroup,addtheappropriateuserstothegr

oup,andgrantthatgroupreadand

writeaccesstotheappropriatedevice.Youmustmakethesechangesonthehost

operatingsystemastherootuser(su -).Forexample,youcanenterthefollowing

commands:

chgrp <newgroup> /dev/vmnet0

chmod g+rw /dev/vmnet0

Here<newgroup>isthegroupthatshouldbeabletosetvmnet0topromiscuousmode.

Foralluserstobeabletosetthevirtualnetworkadapter(/dev/vmnet0intheexample)

topromiscuousmode,runthefollowingcommandonthehostoperatingsystemasthe

rootuser:

chmod a+rw /dev/vmnet0

Using NAT

NATprovidesawayforvirtualmachinestousemostclientapplicationsoveralmost

anytypeofnetworkconnectionavailabletothehost.Theonlyrequirementisthatthe

networkconnectionmustsupportTCP/IP.

NATisusefulwhenyouhavealimitedsupplyofIPaddressesorareconnectedtothe

netw

orkthrougha

non‐Ethernetnetworkadapter.NATworksbytranslatingaddresses

ofvirtualmachinesinaprivateVMnetnetworktotheaddressofthehostmachine.

Whenavirtualmachinesendsarequesttoaccessanetworkresource,itappearstothe

networkresourceasiftherequestiscomingfromthehostmac

hin

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VMware Workstation 7 Manual de usuario Pagina 316

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