Read in an XML file that has a namespace defined

Hi Experts,

I have the below XML file which I cannot change!

<?xml version='1.0'?>
<Motorola xmlns:Falcon='http://www.domain.com/RFID/Readers/Config/Falcon' xmlns='http://www.domain.com/RFID/Readers/Config/Falcon'>
<Config>
<AppVersion major='2' minor='2' build='0' maintenance='5'/>
<CommConfig DHCP='0' IPAddr='192.168.1.33' Mask='255.255.255.0' Gateway='0.0.0.0' DNS='0.0.0.0' HttpRunning='1' TelnetActive='1' FtpActive='1' usbMode='1' WatchdogEnabled='1' SerialConTimeout='0' SNTP='192.168.1.152' SNTPHostName='ZACH-PC' sntpHostDisplayMode='1' llrpClientMode='0' llrpPort='5084' llrpHostIP='192.168.127.2' allowllrpConnOverride='0'/>
<RegionConfig RFBoard='0' RFCountry='United States' RFRegulatory='US FCC 15' RFScanMode='0' LBTEnable='0' ChannelData='FFFFFFFFFFFFFFFF' MACLinkProfile='65535'/>
<SnmpConfig snmpVersion='1' heartbeat='1' epcgReadPointOperStateNotifyEnable='15' epcgReadPointOperNotifyFromState='0' epcgReadPointOperNotifyToState='0' epcgReadPointOperNotifyStateLevel='28080' epcgAntRdPntReadFailureNotifEnable='15' epcgAntRdPntReadFailureNotifLevel='28080' epcgAntRdPntWriteFailureNotifEnable='15' epcgAntRdPntWriteFailureNotifLevel='28080' epcgAntRdPntKillFailureNotifEnable='15' epcgAntRdPntKillFailureNotifLevel='28080' epcgAntRdPntEraseFailureNotifEnable='15' epcgAntRdPntEraseFailureNotifLevel='28080' epcgAntRdPntLockFailureNotifEnable='15' epcgAntRdPntLockFailureNotifLevel='28080' epcgIoPortOperStatusNotifEnable='15' epcgIoPortOperStatusNotifLevel='28080' epcgRdrDevOperNotifStateLevel='6' epcgRdrDevOperStateEnable='1' epcgRdrDevOperNotifFromState='0' epcgRdrDevOperNotifToState='0'/>
<UserList>
<User name='admin' accessLevel='3' PSWD='DADBE0EE74A6528E'/>
</UserList>
<IPReader name='Advanced Reader' desc='Advanced Reader' flags='0' MonoStatic='0' CheckAntenna='1' gpiDebounceTime='0' contact='Company Inc'>
<ReadPoint name='Read Point 1' flags='0'/>
<ReadPoint name='Read Point 2' flags='1'/>
<ReadPoint name='Read Point 3' flags='1'/>
<ReadPoint name='Read Point 4' flags='1'/>
<ReadPoint name='Read Point 5' flags='0'/>
<ReadPoint name='Read Point 6' flags='0'/>
<ReadPoint name='Read Point 7' flags='0'/>
</IPReader>
</Config>
<MOTOROLA_LLRP_CONFIG><LLRP_READER_CONFIG />
</MOTOROLA_LLRP_CONFIG>
<RadioProfileData><RadioRegisterData Address='ffffffff' Data='0'/>
</RadioProfileData>
<CustomProfileData ForceEAPMode='0' MaxNumberOfTagsBuffered='512' EnableDefaultFilter='false'/>
</Motorola >

How can I read in and/or set the value of Motorola.Config.CommConfig.IPAddr?  I tried this but it doesn't seem to work:

                   XmlDocument document = new XmlDocument();
                    document.Load(path);
                    XmlElement xmlRoot = document.DocumentElement;

                    XmlNode node = xmlRoot.SelectSingleNode("/Config/CommConfig");

node comes back as null! Eventhough, I can see that Motorola has a child node called Config

Thanks