Specifies the Ipv4 address to be used as the source for performing
an CPE ping operation when tmnxOamPingCtlTestMode has a value of
'cpePing'. This parameter is required for 'cpePing' and ignored in
all other cases.
This object was obsoleted in release 4.0 and replaced with
InetAddress objects tmnxOamCpePingCtlSrcAddrType and
tmnxOamCpePingCtlSrcAddress.